Life Sciences Commons^™

Soil Science Research Report - 1988

Soil Science Research Reports

Tillage Experiments

An Economic and resource analysis of deep tillage to reduce soil compaction for crop production .......... 1

Effect of phosphorus rate, method of application and tillage on soybean yield in Nebraska .......... 7

Increasing nitrogen use efficiency by dryland sorghum under conventional disk and no-tillage systems .......... 13

Nitrogen placement evaluation for winter wheat in three fallow tillage systems ....... 19

On the infiltration characteristics between tillage/residue soil condition and rainfall .......... 24

Tillage influence on soybean production .......... 26

Tillage, rotation and N effects on dryland corn production and nitrogen uptake in Northeastern Nebraska .......... 30

Fertilizer …

Considerations In Breeding Endophyte-Free Tall Fescue Forage Cultivars, Jeffrey F. Pedersen, D. A. Sleper

Department of Agronomy and Horticulture: Faculty Publications

Breeding tall fescue (Festuca arundinacea Schreb.) cultivars that are free of the endophytic fungus Acremonium coenophialum Morgan-Jones and Gams [previously identified and referred to as Epichloe typhina (Fries) Tulasne] is necessary to improve animal performance. The techniques used in developing new cultivars are not greatly different from those used previously, with one exception. Prior to the evaluation of new tall fescue lines or populations, the endophyte needs to be eliminated from the seed or the plants. Several techniques utilizing aging, heat, or chemical treatment are being used to effectively accomplish this in the seed. Methods for permanently eliminating the endophyte …

Levels And Timing Of Nitrogen Fertilizer Applications For Tall Fescue In Central Alabama, J. W. Odom, Jeffrey F. Pedersen

Department of Agronomy and Horticulture: Faculty Publications

Tall fescue (Festuca arundinacea Schreb.), the most important cool season perennial pasture grass in the United States, is generally well adapted to the northern two-thirds of Alabama. Unfortunately, the most commonly grown tall fescue cultivar, Kentucky 31, is of northern origin and is dormant during the winter. To reduce this problem, AU Triumph was selected from Mediterranean germplasm. The Alabama Agricultural Experiment Station released this cultivar to growers in 1981. Compared to Kentucky 31, AU Triumph produces about 80 percent more forage during the winter and produces mature seed about 2 weeks earlier in the spring. Total annual forage production …