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Search results on 09/18/14

7743. Young, D.L., D.B. Taylor and R.I. Papendick. 1985. Separating erosion and technology impacts on winter wheat yields.. IN: Erosion and Productivity (Proc. Natl. Symp. on Erosion and Productivity).
This paper: 1) presents a procedure for disaggregating erosion damage from technology gains on crop yields; 2) examines how additive vs. multiplicative differences between technology and topsoil erosion influence real assessments of erosion damage; 3) presents statistical estimates of the relationship between winter wheat yields and topsoil depth in the Palouse; 4) statistically tests whether technology interacted additively or multiplicatively with topsoil depth in influencing wheat yields. The conclusion supports contentions that recent agricultural technical progress mask serious long-term degredation of soil productivity, which will stunt future yield payoff to technical progress. It reinforces the economic justification for soil conservation. T: Comparison of additive and multiplicative technical progress impacts on crop yield response to topsoil depth. Comparisons of winter wheat yield-topsoil relationships from 1950 and 1970.

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Updated March 31, 2004

 
                         
 

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