Browse on keywords: erosion OR wheat
Search results on 07/22/18
1699. Douglas, C.L. and P.E. Rasmussen. 1985. Rill erosion effect on wheat yield.. OR Agr. Expt. Sta. Special Report 738, p. 12-13.
Rill erosion does have a detrimental effect on grain yield when it occurs within the growing crop. Even small rills appear to cause a yield loss, apparently because of decreased plant survival. The estimated yield loss, if a rill occurred every 10 ft across a slope, would be 7 bushels of grain per acre. T: effect of aspect and slope steepness on grain yield and tiller density. Winter wheat yields and tiller density in rill and nonrill areas.
2735. Horner, G.M., M.M. Oveson, G.O. Baker, and W.W. Pawson.. 1960. Effect of cropping practices on yield, soil organic matter and erosion in the Pacific Northwest wheat region.. PNW Technical bulletin 1; USDA-ARS and Ag. Expt. Sta.'s of ID, OR, WA.
Summary of soil management experiments conducted over 40 yrs at six experiment stations. Covers: crop rotation, fertilization, and use of organic material. Some results: sweetclover and alfalfa were more effective than other legumes in increasing wheat yield. Yields of wheat were markedly affected by the sequences of cropping. Return of straw to soil decreased yields slightly under low N conditions. Organic and mineral N had no effect on yields in low precip. zones. Also covers runoff and erosion. T: many, eg.: effect of crop rotations on crop yield; crop yield as affected by grass/clover; effect of OM on wheat yield.
3070. Tanaka, D.L. and J.K. Aase. 1989. Influence of topsoil removal and fertilizer application on spring wheat yields.. Soil Sci. Soc. Am. J. 53:228-232.
In 3 of 5 years, soil removal treatments reduced spring wheat yields an average of 9, 28, and 45% for 0.06, 0.12, and 0.18 m soil removal treatments, respectively, over all fertilizer treatments. The data suggest that P was the most limiting nutrient and additions of N fertilizer without P resulted in small yield increases.