有机无机物质组合对中低产稻田培肥效应及水稻产量的影响

Effects of Organic and Inorganic Fertilizer Combination on Fertilization of Paddy Field with Low Productivity and Rice Yield

针对贵州省中低产稻田地力薄弱,普遍酸、粘、瘦等特点,通过大田试验研究了化肥配施厩肥、绿肥、秸秆还田和磷渣等措施对中低产黄壤稻田的培肥效果。结果表明:中低产黄泥田通过综合培肥措施可以达到维持高产、培肥地力的效果。在施用有机肥培肥地力的同时,也要考虑补充碱性含钙物质,以中和有机物分解过程中产生的有机酸,并维持钙素平衡。

The effects of inorganic fertilizer combined with farmyard manure,green manure,straw application and phosphorous slag on fertilization of paddy field with low productivity and rice yield were studied to improve the fertility of paddy field with low productivity in Guizhou.The results showed that the comprehensive fertilization measures could reach the effects of high rice yield and soil fertilization of yellow paddy field with low productivity.The alkaline calcareous materials should be supplied to neutralize organic acids produced from organic matter decomposable process for maintaining calcareous balance when organic manure was applied to improve the fertility of paddy field.