The present paper deals with preliminary study on the influence of hydrolyzed polyacrylonitrile on phosphate and nitrogen in loessal soils,the results obtained are summarized as follows:1.The phosphorus fixation in soil is decreased and the available phosphorus is increased with the increase of the concentration of hydrolyzed polyacrylonitrile applied phosphate.2.The ammoniacal nitrogen content and the ammoniacal nitrogen released from soil are increased with the increase of the.concentration of hydrolyzed polyacrylonitrile applied.
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贾恒义.水解聚丙烯腈对土壤氮磷影响的初步研究[J].土壤学报,1983,20(4):406-412. Jia Hensyi. THE INFLUENCE OF THE HYDROLYZED POLYACRYLONITRILE ON PHOSPHATE AND NITROGEN IN SOIL[J]. Acta Pedologica Sinica,1983,20(4):406-412.