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Nitrogen fertilizer being applied to growing corn in a contoured, no-tilled field in Iowa.. Nutrient management is the science and practice directed to link soil, crop, weather, and hydrologic factors with cultural, irrigation, and soil and water conservation practices to achieve optimal nutrient use efficiency, crop yields, crop quality, and economic returns, while reducing off-site transport ...
In the corn belt, since about 1975, the predominant method of estimating the amount of nitrogen needed for corn has been the "yield-based" method. A farmer first estimates the yield of corn he intends to produce. He then applies 1.1 to 1.4 lbs of nitrogen per bushel of expected yield. [3]
Although nitrogen makes up most of the atmosphere, it is in a form that is unavailable to plants. Nitrogen is the most important fertilizer since nitrogen is present in proteins (amide bonds between amino acids), DNA (puric and pyrimidic bases), and other components (e.g., tetrapyrrolic heme in chlorophyll). To be nutritious to plants, nitrogen ...
Nitrogen is mobile in the plant, so this deficiency will be seen in the lower leaves first because the plant will use the older leaves to supply new leaves with nitrogen. Corn leaves could show a ...
An example is the Three Sisters, the inter-planting of corn with pole beans and vining squash or pumpkins. In this system, the beans provide nitrogen; the corn provides support for the beans and a "screen" against squash vine borer; the vining squash provides a weed suppressive canopy and a discouragement for corn-hungry raccoons. [8]
Adapt-N is a precision nitrogen management solution [buzzword] operated by Agronomic Technology Corp. It was developed at Cornell University.It examines soil, weather, crop, field management data to provide an always-on, field-specific nitrogen recommendation that has been shown to improve financial and environmental performance.
The aerial roots secrete mucus, which supports nitrogen-fixing bacteria. Sierra Mixe corn is a traditional variety of maize grown in the Sierra Mixe region of Mexico, especially the town of Totontepec Villa de Morelos. It is known locally as olotón and has been grown by indigenous farmers for thousands of years. [1]
Grain meals can be made of corn gluten, alfalfa, cottonseed, or soybean. Most supply nitrogen and potassium, but soybean meal provides nitrogen and phosphorus. [27] When initially spread they can cause an increase in ammonia within the soil and burn seeds, it is recommended to use these after plants have developed, to ensure crop success.