Fertilizer Demand Functions for Five Crops in the United States
نویسندگان
چکیده
منابع مشابه
Health System Reform in the United States
In 2010, the United States adopted its first-ever comprehensive set of health system reforms in the Affordable Care Act (ACA). Implementation of the law, though politically contentious and controversial, has now reached a stage where reversal of most elements of the law is no longer feasible. The controversial portions of the law that expand affordable health insurance coverage to most U.S. cit...
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The concentrations of cadmium in agricultural soils depend upon the amounts present in the parent rocks from which the soils form, the amounts added in the form of fertilizers and soil amendments, the amounts deposited onto soils from the atmosphere, and the amounts removed by harvested crops and by leaching. On average, sedimentary rocks contain greater concentrations of Cd than either igneous...
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ژورنال
عنوان ژورنال: Journal of Agricultural and Applied Economics
سال: 1980
ISSN: 1074-0708,2056-7405
DOI: 10.1017/s0081305200015703