Effect of distribution of available soil moisture on response of corn yields to fertilizer nitrogen

Abstract

Signature was redacted for privacy.Signature was redacted for privacy.Signature was redacted for privacy.

Response by corn NPK fertilization of Marshall and Monona soils as influenced by management and meteorological factors

“…The positive interaction between plant population and response to nitrogen is well documented. Krantz (1949), Duncan (195^), Dungan et al (1958), Jordan et al (1958), Rossman and Cook (1966), Shah (1965), Desselle (1967), and Christensen (1968), among others, all reported this phenomenon.…”

“…Many articles in the literature cite interactions between nitrogen and other applied or indigenous soil nutrients (Dumenil and Nelson, 1948;Voss, 1962;Shah, 1965;and Desselle, 1967).…”

Effect of various soil, climatic and management factors on the response of corn to applied fertilizer

“…The effect of N was to increase yields in 27 of 36 replicates. Shah (1965) studied the effect of available soil moisture on the response of corn to applied N for 76 site-years and reported significant yield responses to N with maximum or near maximum yields occurring at the 160pound level of applied. N, Phosphorus, like N, is an essential element in the growth of plants, however, the response of plants to applied.…”

Modeling corn yields and optimum N rates under variable soil and climatic conditions in the western part of the El Bajio area, Mexico

“…By using this technique which makes use of orthogonal polynomials, the growing season can be divided into as man] periods as desired, each one independent of each other, and without increasing the number of independent variables. This technique has been used by several researchers (Davis and Harrel, 1942;Dale, 1948;Carmen, 1963;Shah, 1965;Puente-Berumen, 1969) to characterize and estimate the influence of weather factors on crop yields.…”