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The effect of landscape position on biomass crop yield
Date:3/16/2010

eas that retain water for longer periods of time and highest on well drained summit positions. Corn grain yield was not significantly influenced by any of the soil or terrain attributes tested, but corn stover yield was positively influenced by nitrogen, soil darkness profile, and terrain slope.

Willow productivity, on the other hand, was among the highest at the depositional position and lowest at the summit position. Alfalfa and poplar productivity was highest at a site characterized by a relatively steep slope with potentially erosive soils. Understanding landscape position preferences of crops could allow for more efficient use of field space that reduces the risks of traditional agriculture.

This research will help to develop a multifunctional approach to agricultural land management where environmental and ecological components are considered, based on a sound economic foundation. For example, a desire to improve water quality or wildlife habit while maintaining productivity and profitability may define decision making in this context.

Including perennial crops as part of the overall cropping system is one option for improving profitability while meeting water quality and/or wildlife habitat goals. Overall, this study represents a novel approach to the design of cropping system strategies that lead to optimizing the landscape through a deeper understanding of site-specific crop growth in the context of economic, environmental, and social goals.


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Contact: Sara Uttech
sarauttech@sciencesocieties.org
608-268-4948
American Society of Agronomy
Source:Eurekalert

Page: 1 2

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