Kissel, D.E. and Bidwell, O.W. and Kientz, J.F.
(1982)
Leaching classes of Kansas soils.
Other.
Kansas State University, Manhattan, USA.
Abstract
Applying nitrogen fertilizer at the economic optimum
amount per acre (rate per acre) is essential for the
farmer to attain a profitable return. Application of nitrogen at rates greater than the economic optimum may
waste nitrogen, potentially pollute groundwater supplies,
and be an unnecessary expense. A nitrogen rate less than
the economic optimum would result in a reduced crop
yield and lower economic return...
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