 Alum
(aluminum sulfate) Reduces Availability of Phosphorus
from Poultry Manure
The application of alum to
manure in poultry houses has been shown to reduce
ammonia emissions from the litter.
Gains
and Losses from Burning Small Grain Straw
Straw removal by burning improves
seedbed preparation and seedling establishment.
Burning also helps to reduce nitrogen (N) tie-up
as microbes decompose the straw residue and it
results in nutrient release from the combusting
straw.
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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