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 Biofuel
from Oil Seed Crops
A listing of vegetable oil
yield for 36 crops, developed by Mr. Keith Addison, helps to
identify specific crops with potential as a feedstock for biodiesel
production.
Magnesium
Nutrition of Cotton
Healthy
cotton leaves, stems, and roots will
maximize photosynthetic activity and
give the plant the best chance of producing
a top yield of quality lint.
Citrus
Fertilization
According to Drs. Futch, Zekri
and Oswalt, Extension Specialists with the University of Florida,
cultural programs, such as fertilization, need to be formalized
to maximize fruit yield and health of citrus trees.
Sulfur
Nutrition of Cotton
Sulfur is an essential component of two amino acids,
methionine and cysteine. These amino acids are key building blocks
needed for protein formation in the cotton plant. Research studies
indicate that high yielding cotton will take up nearly forty
pounds of S during the growing season.
Nutrient
Use and Leaching from Organic and Conventional Cropping Systems
Field research was initiated to
evaluate the influence of organic and conventional cropping systems
on nutrient leaching and crop nutrient use efficiency.
Sulfur...for
top-profit crop production
For many years Dr. Sam Tisdale helped to document the growing
deficit of sulfur (S) in crop nutrition.
Wheat-Soybean
Double-Crop System
Researchers strive to refine double crop systems for top-profit
production.
Phosphorus
Placement in Reduced Tillage Systems
The short-term agronomic and economic benefits of crop fertilization with phosphorus
(P) have received primary emphasis.
Potassium
and Phosphorus Effects on Yield Components of Alfalfa
Fertility research conducted on alfalfa has examined the effect of specific
nutrients, primarily in isolation, and seldom how multiple nutrients interact
to influence alfalfa growth.
How
Vegetable Plant Roots Absorb Nutrients
Vegetable plant roots are able to absorb
nutrients due to two distinctly different
sequential processes. First, the nutrients
must move from the soil to the surface
of the plant roots. Second, the nutrients
must be able to cross from the outside
to the inside of the plant roots. Once
the nutrient is inside the plant, the nutrients
can move upward to the leaves and developing
vegetable.
MAP,
as a Starter Fertilizer for Corn
Monoammonium phosphate (MAP) and diammonium phosphate (DAP) are excellent sources
of phosphorus (P) and nitrogen (N) for high yield, high quality crop production.
Research trials at 42 field sites in seven corn belt states showed an average
corn yield of 162 bushels per acre with MAP and 159 with DAP.
Potassium
can improve crop establishment
Dr. A. M. Johnson, Northern Great Plains Director for PPI/PPIC, reports that
seedbed fertility is important for establishing a crop. He identifies the specific
roles of potassium in plant growth, such as its role in activating enzymes,
photosynthesis and root growth.
Nutrient
Management Guidelines for 2006
Research continues to confirm the important role fertilizers perform in profitable
crop production. Dr. Scott Murrell, Northcentral Director for the Potash & Phosphate
Institute (PPI), suggests nutrient management guidelines for top profit crop
production this year.
Phosphorus
Nutrition of Cotton
Field observations are an important part of the total management
process in producing high-yielding, high-quality cotton. However,
cotton does not always display visible symptoms of phosphorus
deficiency.
Bermudagrass
Requires Frequent Nutrient Inputs
Dr. John Andrae, Forage Crop Specialist at Clemson University
emphasized that warm season perennial forage crops like bermudagrass
are the back-bone of many cow-calf operations in the Southeast.
Wheat
Responds to Balanced Nutrition
Research continues to show benefits from balanced nutrition
in intensively managed crop production systems.
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