Life Sciences Commons^™

G79-474 Understanding Wind Erosion And Its Control, William A. Hayes, C.R. Fenster

University of Nebraska-Lincoln Extension: Historical Materials

Wind erosion is a serious hazard on millions of acres of land in the United States, most of which are in the Great Plains.

There are a number of things an individual can do control wind erosion but basically they all point to accomplishing one or more of the following objectives:

1. Reduce the wind velocity at the soil surface. This is done with windbreaks, crop residues, cover crops, surface roughness, and wind stripcropping.

2. Trap soil particles. This is accomplished by ridging or roughening the soil surface to trap moving soil particles.

3. Increase size of soil aggregates. This …

G79-481 Setting A Realistic Corn Yield Goal (Revised January 2004), Achim Dobermann, Charles A. Shapiro

University of Nebraska-Lincoln Extension: Historical Materials

Corn growers need to set a realistic corn yield goal in order to make sound decisions on corn hybrid, seeding rate, fertilizer application, and irrigation need. The goal should be the most profitable yield that can be expected for the particular set of soil, climate, and management practices. Yield goals should gradually increase over time, but cannot exceed the theoretical yield potential. This NebGuide discusses how to set a realistic corn yield goal by acknowledging climatic yield limitations of corn in Nebraska and the yield history in a field.

Relationship Of Weed Control And Soil Ph To No-Tillage Corn Yields, J. J. Kells, C. E. Rieck, Robert L. Blevins, Charles H. Slack

Agronomy Notes

Atrazine and simazine are used for selective control of a broad spectrum of weeds in corn. Over 80% of the U.S. corn production is treated with one or the other of these two s-triazine herbicides. In Kentucky they are used annually on over 800,000 acres of corn, including over 200,000 acres of no-tillage corn. When added to the soil these compounds are ultimately degraded to non-phytotoxic compounds. The rate of degradation is dependent upon the physical, chemical, and biological properties of the soil. Although atrazine and simazine are chemically similar, simazine is considered to degrade slightly slower than atrazine after …

B753: The Uptake Of Nutrients By Katahdin Potatoes As Influenced By Soil Moisture Regimes And Rates Of Fertilization, Gurbachan Singh Kalra, Roland A. Struchtemeyer

Bulletins

In Aroostook County, Maine, where the annual average rainfall is 35-40 inches, it is generalized by many that moisture is not a limiting factor in potato production. Weather data for Aroostook do, however, show frequent periods of low rainfall during the growing season, and these periods do cause temporary moisture deficiencies in the crop. Struchtemeyer, based on irrigation research in Maine, showed that the potato plant needs approximately 1 inch of water per week during the growing season. From the 1936 to 1955 Maine Weather Records, Pullen and Schrumpf (23) found that about 70 percent of the time, less than …

Seasonal Variation In Soil Nutrients Under Six Rocky Mountain Vegetation Types, T. Weaver, F. Forcella

Aspen Bibliography

No abstract provided.

A Trap To Measure Populus And Salix Seed Fall, J.C. Zasada, R. Densmore

Aspen Bibliography

No abstract provided.