1 SS-AGR-128 Sugarcane Plant Nutrient Diagnosis 1 J. Mabry McCray, Ike V. Ezenwa, Ronald W. Rice and Timothy A. Lang 2 Introduction A consistent soil testing program is a valuable best management practice (BMP) that allows sugarcane growers to make sound economic fertilization decisions. However, soil testing in Florida has two limitations. First, soil tests are either not available or are not calibrated for nitrogen and micronutrients. Second, soil samples are routinely taken only before sugarcane is planted, not in ratoon crops, because of problems in obtaining representative soil samples after banding of fertilizers in the furrow at planting and in later sidedress applications. Use of leaf nutrient analysis in combination with visual evaluation of malnutrition symptoms can complement a growers soil testing program and add additional information that will improve decisions. Leaf analysis provides a picture of crop nutritional status at the time of sampling, while soil testing provides information about the continued supply of nutrients from the soil. Leaf analysis allows for early detection of nutritional problems and so enables the grower to add supplemental fertilizer to the current year's crop or to adjust next year's fertilizer application. It is also used to help diagnose a nutritional problem in a particular field or localized area of a field where poor growth or other symptoms have been observed. Although specific fertilizer recommendations are not provided for a given leaf nutrient analysis, deficiencies or imbalances indicate where additions or changes in the fertility program are needed. Leaf analysis and knowledge of visual symptoms can be used along with soil-test values and fertilizer and crop records to make improved decisions regarding fertilization. Leaf Analysis Evaluation Methods There are two methods for evaluating the nutrient status of sugarcane, the Critical Nutrient Level (CNL) approach and the Diagnosis and Recommendation Integrated System or DRIS. Leaf sampling and preparation procedures are discussed in a companion EDIS publication by Ezenwa et al. (2005) (http://edis.ifas.ufl.edu/sc076). 1. This document is SS-AGR-128, one of a series of the Agronomy Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date July This publication is also a part of the Florida Sugarcane Handbook, an electronic publication of the Agronomy Department. For more information you may contact the editor of the Sugarcane Handbook, R. A. Gilbert Visit the EDIS Web Site at 2. J. M. McCray, assistant scientist, Agronomy Department, Everglades Research and Education Center--Belle Glade, FL; I. V. Ezenwa, assistant Professor, Agronomy Department, Southwest Florida Research and Education Center--Immokalee, FL; R. W. Rice, Agronomic Crops Extension Agent III, Palm Beach County Extension Office, Belle Glade, FL; T. A. Lang, research associate, Everglades Research and Education Center--Belle Glade, FL; Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL. The use of trade names in this publication is solely for the purpose of providing specific information. UF/IFAS does not guarantee or warranty the products named, and references to them in this publication does not signify our approval to the exclusion of other products of suitable composition. The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. U.S. Department of Agriculture, Cooperative Extension Service, University of Florida, IFAS, Florida A. & M. University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Larry Arrington, Dean
2 Sugarcane Plant Nutrient Diagnosis 2 The CNL approach defines a nutrient concentration below which the nutrient is considered to limit production. It refers specifically to the concentration of a particular nutrient in a particular plant part at a specific stage of growth at which production losses reach 5 to 10%. For Florida sugarcane, the top visible dewlap (TVD) leaf blade is sampled during the grand growth period of June to August. When using this approach it is particularly important to collect leaf samples at the specified growth stage used for reference standards because nutrient contents change during the crop growth cycle. The CNL approach may also include using a nutrient's optimum range, defined as the range of concentration of a nutrient considered optimum for production. Within this range there should be no deficiency or excess of a given nutrient. Sugarcane leaf nutrient critical values and optimum ranges are given in Table 1. DRIS calculates indices relative to zero by comparing leaf nutrient ratios with those found in a high-yielding population. In the mid-1980s a DRIS application for Florida sugarcane was developed (Elwali and Gascho, 1983; 1984). DRIS requires a large number of observations of plant tissue nutrient concentrations and associated crop yields which are used to define separate low- and high-yielding populations and are also used to determine nutrient ratio means for the high-yielding population. A calibration formula uses the means and standard deviations of the nutrient ratios to calculate relative indices for individual nutrients that can range from negative to positive and that when equal to zero indicate that the associated nutrient ratios are similar to those of the high-yielding test population. The more negative an index for a given nutrient, the more likely the nutrient is insufficient relative to other nutrients. A positive index indicates the nutrient is present in excess relative to other nutrients. The Nutrient Balance Index (NBI) can be calculated by adding the absolute value of all individual indices together. As the NBI increases, the more out of balance a leaf analysis is considered to be. DRIS incorporates a measure of the balance between nutrients and can indicate problems that are not as obvious with the CNL approach. It also has the advantage of not being as sensitive to the stage of growth as the CNL approach, which allows a wider time frame in which to collect samples. It is important to note that the use of one approach does not exclude the use of the other. DRIS is simply another valuable tool that can be used to examine nutrient balance, and offers additional interpretations beyond the evaluation of leaf nutrient concentrations alone. Because of the large number of calculations required to determine DRIS indices, a computer program is required. An Excel spreadsheet programmed for sugarcane DRIS calculations is available at the EREC website (http://erec.ifas.ufl.edu/). At the EREC web site homepage, the Sugarcane DRIS Calculator is listed under the heading EREC Extension. Click on the DRIS Calculator and you will have the option of opening or saving the Excel spreadsheet programmed for the calculations. The nutrient concentrations required for the calculations are nitrogen, phosphorus, potassium, calcium, magnesium, iron, manganese, zinc, and copper. Questions about the DRIS spreadsheet can be directed to Mabry McCray A cooperative research effort is being made between IFAS scientists and Florida sugarcane growers to use leaf nutritional analysis to improve growers fertility programs. This includes tests of fertilizer supplements to a current years crop based on DRIS indices of leaf samples taken in the spring. As improvements are made in our ability to use sugarcane leaf nutritional data, updates will be made available in EDIS. References and Further Reading Anderson, D. L. and J. E. Bowen Sugarcane Nutrition. Potash and Phosphate Institute, Atlanta, GA. Beaufils, E. R Diagnosis and Recommendation Integrated System (DRIS). A general scheme of experimentation based on principles developed from research in plant nutrition. Soil Sci. Bull. 1, Univ. of Natal, Pietermaritzburg, South Africa. 132 pp. Elwali, A. M. O. and G. J. Gascho Sugarcane response to P, K, and DRIS corrective treatments on Florida Histosols. Agron. J. 75:
3 Sugarcane Plant Nutrient Diagnosis 3 Elwali, A. M. O. and G. J. Gascho Soil testing, foliar analysis, and DRIS as guides for sugarcane fertilization. Agron. J. 76: Ezenwa, I. V., J. M. McCray, P. R. Newman, and R. W. Rice Sugarcane leaf tissue sample preparation for diagnostic analysis. Florida Cooperative Extension Service Pub. SS-AGR Rice, R. W., R. A. Gilbert, and R. S. Lentini Nutritional requirements for Florida sugarcane. Florida Cooperative Extension Service Pub. SS-AGR Samuels, G Foliar Diagnosis for Sugarcane. Adams Press, Chicago. 362 pp. Field Identification of Nutritional Problems Visual symptoms of nutrient deficiencies and toxicities can often be the first sign that a particular field or location within a field has a nutritional problem. Recognizing these visual symptoms is an important step toward taking corrective action. Further evaluation may be pursued with detailed leaf and soil sampling. The pictures of visual symptoms included in this document are from the publication Sugarcane Nutrition, by D. L. Anderson and J. E. Bowen (1990). These photographs are from various researchers from sugarcane growing areas around the world. The elements included are arranged alphabetically. Table 1. Sugarcane leaf nutrient critical values and optimum ranges. Nutrient Critical Value Optimum Range % % Nitrogen (N) Phosphorus (P) Potassium (K) Calcium (Ca) Magnesium (Mg) Sulfur (S) Silicon (Si) 0.50 >0.70 mg/kg mg/kg Iron (Fe) Manganese (Mn) Zinc (Zn) Copper (Cu) Boron (B) Molybdenum From Anderson and Bowen (1990), except for Si values (J. M. McCray, unpublished data). All values are from Florida except S and Mo, which are from Louisiana.
4 Sugarcane Plant Nutrient Diagnosis 4 Aluminum (Al) Figure 1. Aluminum toxicity does not directly show up on the leaves, but in the root system. Damage to the root system by Al toxicity resembles injury symptoms caused by nematodes. Few lateral roots form and those roots that are present have abnormally thickened tips. Plants become highly susceptible to moisture stress. On acid soils, land-forming operations or erosion can expose acid subsoils. Aluminum toxicity might be found with soil ph less than 5.2 and can be alleviated by liming, which increases soil ph and adds Ca. Figure 2. Calcium added to the soil helps to alleviate the effects of Al toxicity, particularly if accompanied by an appropriate ph increase.
5 Sugarcane Plant Nutrient Diagnosis 5 Boron (B) Figure 3. The symptoms of B deficiency appear on young leaves of sugarcane. Apical meristem may or may not remain alive. Immature leaves have varying degrees of chlorosis, but they do not wilt. CREDITS: J. Orlando Filho Figure 4. Boron-deficient plants have distorted leaves, particularly along the leaf margins on immature leaves. Immature leaves may not unfurl from the whorl when B deficiency is severe.
6 Sugarcane Plant Nutrient Diagnosis 6 CREDITS: J. E. Bowen Figure 5. In B deficiency, the apical meristem may die. CREDITS: J. E. Bowen Figure 6. Translucent lesions ("water sacks") along leaf margins may occur as B deficiency progresses.
7 Sugarcane Plant Nutrient Diagnosis 7 CREDITS: G. J. Gascho Figure 7. In cases of severe B deficiency, young sugarcane plants tend to be brittle and bunched with many tillers. CREDITS: J. E. Bowen Figure 8. Leaf margins become chlorotic with B toxicity.
8 Sugarcane Plant Nutrient Diagnosis 8 Calcium (Ca) CREDITS: G. Samuels Figure 9. The effects of Ca deficiency on older leaves are localized with mottling and chlorosis. Older leaves may have a "rusty" appearance and may die prematurely. CREDITS: G. Samuels Figure 10. Spindles often become necrotic at the leaf tip and along margins when Ca deficiency is acute. Immature leaves are distorted and necrotic. However, Ca deficiency is uncommon.
9 Sugarcane Plant Nutrient Diagnosis 9 Chlorine (Cl) CREDITS: J. E. Bowen Figure 11. Chlorine deficiency and toxicity are hard to identify in the field. Chlorine deficiency causes abnormally short roots and increases the number of lateral roots. Chlorine toxicity will also cause abnormally short roots with very little lateral branching (from left to right: 0, 1, and 100 ppm Cl). Neither Cl deficiency nor toxicity are likely in commercially-grown sugarcane in Florida. CREDITS: J. E. Bowen Figure 12. Chlorine deficiency and toxicity in young leaves (from left to right: 0 and 100 ppm Cl).
10 Sugarcane Plant Nutrient Diagnosis 10 Copper (Cu) CREDITS: G. J. Gascho Figure 13. Copper deficiency generally appears first in young leaves. Green splotches are an early symptom. Figure 14. Apical meristems remain alive, but internode elongation will be greatly reduced when Cu deficiency is severe.
11 Sugarcane Plant Nutrient Diagnosis 11 Iron (Fe) CREDITS: J. Orlando Filho Figure 15. General vigor and tillering are reduced under Cu deficiency. Figure 16. Iron deficiency is first evident on young leaves. Symptoms of Fe deficiency often occur adjacent to unaffected plants. Young plants may overcome symptoms as the plant matures and the root system develops.
12 Sugarcane Plant Nutrient Diagnosis 12 CREDITS: J. Orlando Filho Figure 17. Iron deficiency occurs on high ph calcareous soils found in Brazil. Figure 18. On high ph calcareous soils found in Barbados, Fe deficiency is found adjacent to healthy maturing cane plants. Damage to the root system due to insects or adverse soil conditions (i.e., salts) give this deficiency unusual spatial characteristics.
13 Sugarcane Plant Nutrient Diagnosis 13 Magnesium (Mg) Figure 19. Magnesium deficiency is first evident on older leaves. Red necrotic lesions result in a "rusty" appearance. Figure 20. The "rusty" appearance can spread across all leaves and may also result in premature dropping of older leaves.
14 Sugarcane Plant Nutrient Diagnosis 14 Figure 21. Under severe Mg deficiency, the stalk may become stunted and severely "rusted" and brown. Internal browning of the stalk may also occur. Manganese (Mn) CREDITS: J. Orlando Filho Figure 22. Manganese deficiency first appears on younger leaves. Interveinal chlorosis occurs from the leaf tip toward the middle of the leaf.
15 Sugarcane Plant Nutrient Diagnosis 15 Molybdenum (Mo) Figure 23. Under severe Mn deficiency, the entire leaf becomes bleached. CREDITS: J. E. Bowen Figure 24. Molybdenum deficiency is seen on older leaves. Short longitudinal chlorotic streaks on the apical one-third of the leaf. Symptoms are similar to mild infections of Pokkah Boeng disease (http://edis.ifas.ufl.edu/sc004).
16 Sugarcane Plant Nutrient Diagnosis 16 Nitrogen (N) Figure 25. Older leaves first show N deficiency. Symptoms become generalized over the whole plant and older leaves die back. Young leaves are pale-green and stalks are slender when under long-term N deficiency stress. CREDITS: J. E. Bowen Figure 26. Internode growth is reduced with N deficiency.
17 Sugarcane Plant Nutrient Diagnosis 17 CREDITS: P. Bosshart Figure 27. With N deficiency, leaf sheaths prematurely separate from the stalk. Note pale-green to yellow color. Phosphorus (P) Figure 28. Older leaves first show symptoms of P deficiency. Leaf reddening usually occurs with P deficiency when the plant is young and when growing temperatures are <10 C (50 F).
18 Sugarcane Plant Nutrient Diagnosis 18 Figure 29. Phosphorus deficiency causes short and slender stalks. Older leaves prematurely die back (note leaf sheaths). Potassium (K) Figure 30. Older leaves first show symptoms of K deficiency. The symptoms appear as localized mottling or chlorosis.
19 Sugarcane Plant Nutrient Diagnosis 19 Figure 31. Red discoloration of upper surfaces of the midrib is characteristic of K deficiency. Insect feeding damage on the midrib may be misconstrued as K deficiency. Figure 32. Under moderate K deficiency, young leaves remain dark green and stalks become slender.
20 Sugarcane Plant Nutrient Diagnosis 20 Figure 33. Long-term K deficiency stress may affect meristem development indicated by spindle distortion and a "bunched top" or "fan" appearance. Sodium (Na) Figure 34. High concentration of Na + in the soil and resulting accumulation in the plant adversely affects root and shoot growth. Leaf tips and margins will dry out and have a scorched appearance. Excessive Na levels in soil or plants would not be expected in commercial sugarcane growing areas in Florida.
21 Sugarcane Plant Nutrient Diagnosis 21 CREDITS: M. K. Schon Figure 35. With high Na, sugarcane leaves may be broad, but under excessively high concentrations the chlorophyll content decreases, lowering the net photosynthesis per unit leaf area. Under these conditions, leaves may have a pale-green to yellowishgreen appearance. High Na is associated with high Cl levels. Silicon (Si) CREDITS: J. E. Bowen Figure 36. Silicon deficiency symptoms of cane grown on sand media under dripirrigation. In the field, symptoms appear as minute circular white leaf spots (freckles) and are more severe on older leaves.
22 Sugarcane Plant Nutrient Diagnosis 22 Sulfur (S) CREDITS: J. E. Bowen Figure 37. Young leaves affected by SO 2 toxicity. Symptoms are mottled chlorotic streaks running the full length of the leaf blade. Toxicity occurs in active volcanic regions of the world. CREDITS: J. E. Bowen Figure 38. Leaf tips and margins may become necrotic within 3 to 7 days after SO 2 exposure.
23 Sugarcane Plant Nutrient Diagnosis 23 CREDITS: A. Hurney Figure 39. Sulfur-deficient leaf (right), with symptoms of chlorosis and purple leaf margins contrasted with a healthy leaf (left) treated with ammonium sulfate. CREDITS: A. Hurney Figure 40. Sulfur deficiency in a sandy soil in North Queensland, Australia. Leaves are narrower and shorter than normal; stalks are slender.
24 Sugarcane Plant Nutrient Diagnosis 24 Zinc (Zn) CREDITS: J. Reghenzani Figure 41. Zinc deficiency is first evident on the younger leaves. A broad band of yellowing in the leaf margin occurs. The midrib and leaf margins remain green except when the deficiency is severe. CREDITS: J. Reghenzani Figure 42. Red lesions are often noticed. The lesions may be associated with a fungus which prefers to grow in Zn deficient tissues.
25 Sugarcane Plant Nutrient Diagnosis 25 CREDITS: J. Reghenzani Figure 43. The severity of Zn deficiency can be highly variable. Symptoms are increased with liming and when low Zn subsoils are exposed to the surface.
Plant nutrients All plants require nutrients to survive and grow. Plants take nutrients from the air, the soil, and the water. Because you cannot see nutrients they are colourless gases or are like dust
Integrated Pest Management Nutrient Deficiencies and Application Injuries in Field Crops John Sawyer Department of Agronomy Nitrogen deficiency in corn IPM 42 Revised July 2004 Nutrient deficiencies in
October 2015, #2015.09 Research Update Symptoms of Common Nutrient Deficiencies in Hydroponic Lettuce by Neil Mattson and Tanya Merrill Managing the nutrient solution of hydroponic crops can be much more
CIR1141 Fertilization of Strawberries in Florida 1 George Hochmuth and Earl Albregts INTRODUCTION Strawberries are produced on 5000-6000 acres each year in Florida and the 199-93 season had a crop value
PNW 121E NUTRIENT DISORDERS IN TREE FRUITS A Pacific Northwest Extension Publication Washington Idaho Oregon NUTRIENT DISORDERS IN TREE FRUITS By Nels R. Benson, Soil Scientist and Horticulturist (retired),
Deficiency Symptoms in Vegetable Plants (Corrective Treatments Per 30ʼ-long Row) BORON (1-2 ounces Borax) General Symptoms Rosette Crown terminal buds; Death of terminal buds; leaves are an off-green color;
LAB 5 PLANT NUTRITION I. General Introduction All living organisms require certain elements for their survival. Plants are known to require carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus
Agronomic and Economic Considerations on Michigan Farms MSU Phosphorus and Potassium Fertilizer Recommendations for Field Crops The key ingredients: Soil Test Information Yield Goal Buildup, Maintenance
Fertility Guidelines for Hops in the Northeast Dr. Heather Darby, University of Vermont Extension Agronomist The increasing acreage of hops in the Northeast has prompted the need for fertility guidelines
SL253.04 Soil and Leaf Tissue Testing for Commercial Citrus Production 1 Thomas A. Obreza, Mongi Zekri, Edward A. Hanlon, Kelly Morgan, Arnold Schumann, and Robert Rouse 2 Introduction Nutrient deficiency
Chapter 5 Foliar Testing and Sampling in Berry Crops, Visual Symptoms of Deficiencies - Dr. Marvin Pritts, Cornell University Let s review Soil testing is most useful prior to planting to adjust ph and
Hops FG 79 Reprinted January 2000 C. Gingrich, J. Hart, and N. Christensen Fertilizing hops improves yield and quality by supplying the crop with ample nutrition in advance of demand. Producers must combine
WHAT IS IN FERTILIZER OTHER THAN NUTRIENTS? Raymond C. Ward Ward Laboratories Inc. Kearney, NE Commercial fertilizer is a source of plant nutrients that can be applied to soil to nourish crops when the
Understanding the Soil Test Report Page 1 of 7 Crops absorb the nutrients required from soil in order to grow, so ensuring that your soil is meeting the crops needs is critical. Having the proper level
Fertility Management Corn on Corn Ray Ward Ward Laboratories, Inc Kearney Nebraska www.wardlab.com Guiding Producers Today to Feed the World Tomorrow Topics Nutrient loss from crop mining Evaluation of
Fertility Needs of No-Till Corn, Soybean and Wheat Raymond C. Ward Ward Laboratories, Inc Kearney, NE www.wardlab.com Soil Sample for Fertility Dry or Frozen Ground Uniform Slice Top and Subsoil Sampling
Drinking Water Quality for Poultry Prepared by: Thomas A. Carter Specialist in Charge Extension Poultry Science Ronald E. Sneed Extension Biological and Agricultural Engineering Specialist Published by:
A SOIL TESTING SERVICE FOR FARMERS IN THAILAND, USING MOBILE LABORATORIES Narong Chinabut Office of Science for Land Development Land Development Department, Ministry of Agriculture and Cooperatives, Bangkok
Interpretation of Soil Test Results PM 1310 Revised October 2013 Soil Test Relationship to Nutrient Availability 1. The concentration of phosphorus (P), potassium (K), zinc (Zn), and nitrate-nitrogen (NO
Most of the well water and public water supply in the St. Augustine area are derived from wells in shell strata and limestone so the water tends to be moderately to very alkaline. This will cause white
SL 303 Calculating Recommended Fertilizer Rates for Vegetables Grown in Raised-Bed, Mulched Cultural Systems 1 George Hochmuth and Edward Hanlon 2 polyethylene-mulched raised beds. This mulched cultural
Agricultural to the 21st Century: Tips, Tools & Technologies By Ms. Keeley Holder May 20 th, 2010 Who Am I? Farmer Produce Growers Ltd Scientist Integrated Pest Management Specialist President Barbados
NITROGEN IN RELATION TO THE GROWTH OF CITRUS CUTTINGS IN SOLUTION CULTURES A. R. C. HA AS (WITH FIVE FIGURES) The commercial culture of -citrus in most soils of California requires some form of nitrogen
Purdue University Department of Agronomy Soil Fertility Update May 2012 URL: http://www.kingcorn.org/news/timeless/sulfurdeficiency.pdf Sulfur deficiency in corn Jim Camberato, Stephen Maloney, and Shaun
9 Nutrient Management Module No. 9 Plant Nutrient Functions and Deficiency and Toxicity Symptoms by Ann McCauley, Soil Scientist; Clain Jones, Extension Soil Fertility Specialist; and Jeff Jacobsen, College
NUTRIENT DEFICIENCY SYMPTOMS Barbara J. Bromley, Mercer County Horticulturist 10 Of all of the symptoms and signs of trouble in plants, possibly the most overlooked are nutrient deficiencies. The interrelationship
FE712 Economic Evaluation of Citrus Greening Management and Control Strategies 1 Allen Morris and Ron Muraro 2 Introduction Huanglongbing (HLB), or greening, was discovered in Brazil in 2004 and in Florida
Secondary and Micronutrients f or VEGETABLES AND FIELD CROPS MICHIGAN STATE U N I V E R S I T Y EXTENSION By M.L. Vitosh, D.D. Warncke and R.E. Lucas Department of Crop and Soil Sciences Michigan State
The Atom Atomic Number Mass Number Isotopes 1 Atomic Theory Atoms are building blocks of elements Similar atoms in each element Different from atoms of other elements Two or more different atoms bond in
MICRONUTRIENTS AS STARTER AND FOLIAR APPLICATION FOR CORN AND SOYBEAN Nathan D. Mueller and Dorivar A. Ruiz Diaz Dep. of Agronomy, Kansas State University Abstract Corn and soybean production under high
PI-60 Preparing for the Florida Department of Agriculture and Consumer Services Agricultural and Related Pest Control Applicator Exams 1 Frederick M. Fishel 2 This guide provides an understanding of the
CALCIUM AND MAGNESIUM: THE SECONDARY COUSINS George Rehm, University of Minnesota 1. Introduction In the discipline of soil fertility, sulfur (S), calcium (Ca), and magnesium (Mg) are put into the category
Correcting Iron Deficiencies in Soybean with Foliar Iron Fertilizer Kevin Bronson, Calvin Trostle, Wayne Keeling, and J.D. Booker Texas A&M University Texas Agricultural Experiment Station, Lubbock, TX,
Know how. Know now. EC117 Fertilizer Suggestions for Corn Charles A. Shapiro, Richard B. Ferguson, Gary W. Hergert, and Charles S. Wortmann, Extension Soils Specialists; Daniel T. Walters, Professor of
Cattle and Horse Nutrition Dona Goede Livestock Specialist Introduction Many health, reproductive and production problems can be prevented with good nutrition. Poor nutrition results in: Poor conception
SULFUR AND MICRONUTRIENT RESPONSES ON CORN AND SOYBEANS George Rehm Department of Soil, Water, and Climate, University of Minnesota, St. Paul, MN Introduction The importance of sulfur and micronutrients
Fertilizing Corn Fact Sheet No..38 Crop Series Soil by J.G. Davis and D.G. Westfall* Adequate soil fertility is one of the requirements for profitable corn production. Nitrogen (N) is the most yield-limiting
ALS TRIBOLOGY Engine Coolant Reference Guide Engine coolants are a mixture of, inhibitors, and water. Each formula is designed for specific protection and engine requirements. Mixing different coolants
A L A B A M A A & M A N D A U B U R N U N I V E R S I T I E S Virus Diseases Of Tomato ANR-0836 Virus diseases affect tomato production to some degree every year in Alabama. The amount of damage they cause
Agricultural Extension Service The University of Tennessee PB1637 1 Table of Contents Introduction Essential Plant Nutrients Functions of the Essential Nutrients in Plants Visual Diagnoses of Plant Nutrient
The Basics of Fertilizer Calculations for Greenhouse Crops Joyce G. Latimer, Extension Specialist, Greenhouse Crops; Virginia Tech Publication 430-100 Meeting the Plant s Needs Fertilizers are designed
is a fully water-soluble crystal calcium nitrate fertilizer, a highly efficient CNsource of available calcium and nitrogen for plants. Calcium is a "quality nutrient" that enhances quality and prolongs
Eric Cook firstname.lastname@example.org email@example.com 907-460- 1316 1 Hydroponics NUTRIENT MANAGEMENT FOR HYDROPONICS Nutrient Delivery is Controlled in Hydroponics No complex Soil Chemistry Controlled Nutrient
ANR-1158 A dependable irrigation water supply is a vital component of any greenhouse growing operation. In the past, the quality of the water source was not a cultural issue considered by growers. They
Simplifying Soil Test Interpretations for Turf Professionals University of Nebraska Lincoln Turfgrass Science Program turf.unl.edu Many consider soil testing a cornerstone of turf fertilization. Soil tests
Soil Science Grade 10-12 Classroom Computer Lab Teams of 2 or 3 DESCRIPTION Soil is the top layer of the earth s crust in which organic matter grows. There are many components which determine a soil type
Understanding ph management and plant nutrition Part 3: Fertilizers Bill Argo, Ph.D. Blackmore Company, Tel: 800-874-8660, Int l 734-483-8661, E-mail: firstname.lastname@example.org Originally printed in 2003 in
The following photographs in Section 1 identify symptoms in roses which have common causes and can sometimes be caused by Rose Rosette Disease (a/k/a Rose Rosette Virus). Just because you see a symptom
Salinity Management and Soil Amendments for Southwestern Pecan Orchards Thomas L. Thompson, Professor and Soils Specialist James L. Walworth, Associate Professor and Soils Specialist Department of Soil,
B-6053 04-01 Crop Nutrient Needs in South and Southwest Texas Charles Stichler and Mark McFarland* Crop fertilization is not an exact science. The soil is a dynamic, changing, and complex mixture of organic
Agriculture and Natural Resources Irrigation Water for Greenhouses and Nurseries FSA6061 James Robbins Professor - Ornamentals Arkansas Is Our Campus Visit our web site at: http://www.uaex.edu Both the
Evaluation of Combination Phosphorus Sulfur Fertilizer Products for Corn Production John Sawyer and Daniel Barker Professor and Assistant Scientist Department of Agronomy Iowa State University Introduction
Substrate ph: Getting it Right for Your Greenhouse Crops Neil Mattson Assistant professor and Floriculture Extension Specialist, Department of Horticulture Cornell University, 134A Plant Sciences Bldg,
CORN IS GROWN ON MORE ACRES OF IOWA LAND THAN ANY OTHER CROP. Planted acreage reached a high in 1981 with 14.4 million acres planted for all purposes and has hovered near 12.5 million acres since the early
NC STATE UNIVERSITY Urban Horticulture Note No. 6 North Carolina Cooperative Extension Service Durham County Center 721 Foster Street Durham, North Carolina 27701 919-560-0525 Fax: 919-560-0530 www.ces.ncsu.edu/durham/
BLUEBERRY FERTILIZATION IN SOIL Gerard Krewer and D. Scott NeSmith University of Georgia Ext. Fruit Publication 01-1 Index: Introduction... 1 General information on blueberry fertility and fertilizers...
POTASSIUM Potassium is the last of what might be called the big three soil nutrients nitrogen, phosphorus, and potassium. These three primary nutrients are, by far, the nutrients most commonly limiting
CROP PRODUCTION SERVICES, INC. Implementation of Sustainable Agricultural Initiatives TFI and FIRT Fertilizer Outlook and Technology Conference Presenter: Bill Grillo November 2010 TOPICS Crop Production
MANAGING ALFALFA NUTRITION BY SOIL ANALYSIS IN THE DESERT SOUTHWESTERN UNITED STATES By Aron A. Quist and Michael J. Ottman 1 Introduction: High producing alfalfa responds well to phosphorus and potassium
Special Publication 10-12 How to Read A Soil Analysis Report Angela O Callaghan, Ph.D. Area Extension Specialist Social Horticulture When people send soil samples to laboratories for analysis, the reports
NUTRIENT MANAGEMENT W. David Smith Extension Crop Science Specialist Tobacco The goal of every tobacco farmer should be to develop a fertilization program that meets the needs of the crop while minimizing
Directions: Answer the questions with the proper information using your notes, book, and the periodic table. 1. Define a family. 2. What is a period? 3. What is the symbol for the following elements. a.
FE966 1 Ariel Singerman and Fritz Roka 2 Introduction On September 17, 2014, the United States Department of Agriculture (USDA), Farm Service Agency (FSA) announced additional support for commercial Florida
OCTOBER 2009 PRIMEFACT 890 Common diseases of nectarines L. Ullio Cleanfresh Project, Intensive Industries, Sydney Markets Bacterial canker Bacterial canker is considered a major disease of stone fruit
SELECTING AND USING ORGANIC FERTILIZERS Rich Koenig, Extension Soil Specialist Michael Johnson, Grand County Extension Agent Reviewed December 2011 INTRODUCTION Homeowners recognize the need for timely
r r r rr EDUCATION RESEARCH EXTENSION The Texas A&M University System Soil & Crop Sciences Managing of Annual Winter Forages in Southwest Texas Mr Charles Stichler Assocaite Professor and Extension Agronomist
Design of Control System for Measurement of Ph and EC of Fertilizer Solution Prof Ajay V. Raipure 1, Dr. Ashwinikumar P. Dhande 2 Professor, Dept. of ECE, PCP College, Pune, Maharashtra, India 1 Professor,
Irrigated and Dryland Grain Sorghum Production South and Southwest Texas Charles Stichler, Mark McFarland, and Cloyce Coffman* Many people try to put the growth, development and eventual yield of the grain
Why Fruit Trees Die D. B. Meador, Extension Specialist (retired) University of Illinois Occasionally, fruit trees decline and often die. Diseases affecting the leaves, fruit, and twigs of fruit trees usually
Introduction Strawberry Plant Structure and Growth Habit E. Barclay Poling Professor Emeritus, NC State University Campus Box 7609, Raleigh NC 27695-7609 The strawberry plant has a short thickened stem
report on PLANT DISEASE RPD No. 632 September 1988 DEPARTMENT OF CROP SCIENCES UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN VIRUS AND VIRUS-LIKE DISEASES OF ROSES Virus and viruslike diseases of roses have
Arthropod Pests of Sugarcane: New Threats to Major Production Areas of North America Gregg Nuessly University of Florida Everglades Research and Education Center Belle Glade, Florida USA Sugarcane production
TREATMENT OF PHOSPHATE FERTILIZER PLANT WASTE WATER IN FLORIDA FOR DISCHARGE AND RE USE PURPOSES JOHN F. BOSSLER, SIEMENS Water Technologies Corp., Hoffman Estates, IL RONALD TRAVIS, SIEMENS Water Technologies