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Full-Text Articles in Life Sciences

G91-1046 Conservation Tillage And Planting Systems, Paul J. Jasa, David P. Shelton, Alice J. Jones, Elbert C. Dickey Jan 1991

G91-1046 Conservation Tillage And Planting Systems, Paul J. Jasa, David P. Shelton, Alice J. Jones, Elbert C. Dickey

University of Nebraska-Lincoln Extension: Historical Materials

Tillage system descriptions and comparisons are included here. Moldboard plowing, followed by such secondary tillage operations as disking and harrowing, was once the most common, or traditional, tillage system before planting. Soil erosion potential from rainfall on sloping lands was great and requirements for labor and fuel were high compared to other tillage and planting systems. One of the most commonly used tillage systems in Nebraska today is two diskings followed by field cultivation. Unfortunately, the potential for soil erosion may be great because the number of tillage operations involved may not leave adequate residue cover for erosion control. Today …


Narrow-Winged Seeder Points Reduce Water Erosion And Maintain Crop Yields, Kevin Bligh Jan 1991

Narrow-Winged Seeder Points Reduce Water Erosion And Maintain Crop Yields, Kevin Bligh

Journal of the Department of Agriculture, Western Australia, Series 4

Sowing crops without loosening the topsoil by tillage reduces water erosion. It can increase infiltration of rainfall into loamy soils, thereby reducing runoff and increasing potential crop yields. Crop yields were maintained after I1 seasons of seeding an Avon Valley loam near Beverley with minimum and no-tillage seeding operations. Infiltration increased significantly from 80 per cent of the 1983 growing-season rainfall under the traditional three tillage operations, to 87per cent under a single tillage operation using a combine seed drill. Infiltration increased further to 96 per cent under a no-tillage system using a triple^lisc drill. At Gnowangerup, 80 per cent …