优化肥料结构促进稻田土壤生态良性循环  

THE IMPROVEMENT OF ECOLOGICAL RECYCLE IN SOIL BY OPTIMIZING FERTILIZER COMBINATION IN PADDY ECOSYSTEM

作　　者：任祖淦[1] 陈玉水[1] 唐福钦[1] 王东海 张逸清[1] 

机构地区：[1]福建省农科院土肥所,福建省莆田市农科所

出　　处：《生态学报》1996年第5期548-554,共7页Acta Ecologica Sinica

基　　金：国际水稻研究所协作的INSFFER课题

摘　　要：１９８５～１９９２年在福州、莆田两地，２次进行８年１６个稻作年次定位试验。结果表明，尿素分别与红萍、绿肥、厩肥、稻草配合施用，对稻田土壤物理性状、碳氢平衡、微生物区系、酶活性、供肥能力等生态良性循环有积极的影响；稻谷平均每公顷年产量比等氮量尿素为对照的，增产分别为１０．７％、１１．４％、９．６％、６．５％。取得显著的经济效益和土壤生态效益。Two-period location experiments on soil fertility were conducted respectively in Fuzhou and Putian in continous 16 cropping seasons from 1985 to 1992. The results show that the combining applications of urea with Azolia, green manure, barnyard, manure and rice straw separately provided an active effect on physical character, carbon/nitrogen balance, microflora, enzymatic activity and nutrition-providing apacity of soil. The averaged annual grain yield per hm2 of above combinations was/10. 7%, 11. 4%, 9. 6 % and 6. 5 % higher than that in check plot where only equivalent nitrogen was applied. The combining application of inorganic fertilizer with organic manure achieved significant benefits in economy and soil ecological recycle.

关 键 词：水稻 肥料结构 土壤生态 良性循环 生产力 

分 类 号：S511.01[农业科学—作物学] S511.06