Computations for Studies of Soil Fertility and Fertilizer Requirements

Download or read book Computations for Studies of Soil Fertility and Fertilizer Requirements written by J. D. Colwell and published by C.A.B. International. This book was released on 1978 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimal rates of application of fertilizer. Simultaneous fertilizer rates and the optimal mix. Polinomial yield models. Subroutines for optimal fertilizer rates. Optimal rates for compound fertilizers. General fertilizer rates and recommendations. Nomeclature and jargon. Orthogonal polynomials for studies of soil fertility. Subroutine for analysis of variance with orthogonal polynomials. Designs form fertilizer experiments. The calibration of soil tests for the estimation of fertilizer requirements.