
%0 Journal Article
%A Till, AR 
%A May, PF 
%T Nutrient cycling in grazed pastures. II. Further observations with [<sup>35</sup>S] gypsum
%J Australian Journal of Agricultural Research
%D 1970/04/01
%V 21
%N 2
%P 253-260
%K 
%R https://doi.org/10.1071/AR9700253
%U https://www.publish.csiro.au/paper/AR9700253 
%X The incorporation of sulphur-35 (35S) into the wool of sheep grazing radioactive pasture was measured in two successive experiments on the same site following application of [35S]gypsum. Equilibrium between the applied sulphur and sulphur present prior to the application was established at different rates with different rainfall. After 3 years the sulphur from the original gypsum application was still being turned over in the soil-plant-animal system, there had been no change in the total soil sulphur, and a large portion of soil sulphur did not enter the sulphur cycle. A diagram of a proposed sulphur cycle in grazed pasture is given, and the assumptions made are discussed. 
