INTERVAL ESTIMATION OF ECONOMICALLY OPTIMAL NITROGEN DOSE
Journal Title: ELECTRONIC JOURNAL OF POLISH AGRICULTURAL UNIVERSITIES - Year 2011, Vol 14, Issue 4
Abstract
The aim of this paper is to propose a procedure for interval estimate of nitrogen dose x r, which allows to achieve a chosen value of wheat production function derivativer . It is shown that the point estimator of xr follows asymptotically normal distribution.That fact is used for construction of an asymptotic confidence interval for x r. It is also shown that substitutingr with proportion of input and product unit prices allows to use the proposed formula for interval es timation of economically optimal nitrogen dose. An example of such application based on wint er wheat fertilizing experiment is given.
Authors and Affiliations
Pawe ł Kobus
Keywords
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