Crop Production

Tillage of the soil has been used to prepare a seedbed, kill weeds, incorporate nutrients, and manage crop residues. The goal of the tillage system has been to provide a proper environment for seed germination and root growth for crop production.

Soil is much more than the individual particles of sand, silt, and clay. Ideally, the soil should be one-half solid materials (sand, silt, clay, nutrients, minerals, organic materials, and biological life) and one-half pore space (half of that containing water and the other half being air space). Biological life and organic matter provide the "glues" to create soil aggregates, forming soil structure.

The tilled plots in the foreground of this photo had considerable soil loss and runoff during intense spring rains. The tilled soil surface was susceptible to raindrop impact, causing erosion and surface crusting. The crop residue on the no-till plots in the background absorbed raindrop impact and allowed more water to infiltrate into the soil. With the improved soil structure, the crop is healthier in the no-till.

Improved water infiltration, less runoff and reduced evaporative losses in no-till systems can save from 5 to 12 inches per year, making more water available for crop production. The tilled grain sorghum on the right yielded only 61 bu/A in a dry year while the no-till on the left yielded about 121 bu/A.

A new University of Nebraska-Lincoln led partnership is helping agricultural producers explore emerging technologies and identify ways to strengthen profitability without increasing risk.

The CropWater App is one of the earliest irrigation management apps developed many years ago and its functions are based on the research conducted by Dr. Suat Irmak. It is a product of our efforts in the NAWMN to enhance technology implementation in agricultural production.

Spring manure applications may provide environmental and crop production advantages compared to fall manure applications. These benefits include reduced nitrogen leaching, increased crop yields, and higher phosphorus and potassium nutrient soil storage.

Flood-soaked grain or hay is almost certain to be contaminated, making it unfit for use as food or feed.  This summary describes regulatory considerations and recommended actions for management of agricultural grains and forages deemed unusable for food or feed following flooding.