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The Distribution of Excreta by Freely Grazing Cattle and Its Effect on Pasture Fertility: II. Effect of Returned Excreta on the Residual Concentration of Some Fertilizer Elements 1
Author(s) -
Petersen R. G.,
Woodhouse W. W.,
Lucas H. L.
Publication year - 1956
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1956.00021962004800100003x
Subject(s) - grazing , pasture , fertilizer , agronomy , fertility , nutrient , excretion , environmental science , stocking rate , zoology , stocking , biology , ecology , population , demography , biochemistry , sociology
Synopsis Data indicate that freely grazing animals distribute fertilizers inefficiently, the degree varying with size of the area effectively fertilized by each excretion and with the rate of loss of each element after application. The greatest benefit from excretal return of such elements, as P and K appear to be under conditions of high stocking rate and long periods of grazing time. Reliable values for such factors as effective area fertilizer per excretion and rate of nutrient loss are needed to estimate the effect of grazing animals on the fertility status of a pasture.

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