【摘要】 分析了近十几年来广东省稻田肥料的施用量以及施肥对水稻产量、土壤有机质和养分的影响,并就肥料品种搭配、养分数量及配比、施肥时期、施肥方法、肥料利用率等方面对肥料施用的合理性进行了评估。通过与国内外有关资料的对比分析.结果表明,广东省稻田肥料施用仍有较大的潜力,有必要采取措施进一步发挥,以促进农作物优质高产。更多还原

【Abstract】 In this paper, based on the monitoring data, the fertilizer application rates on rice during 1984 to 2000 in Guangdong province were studied. The effects of fertilization on rice yield, soil organic matter and soil nutrients were also discussed. Through analysis of the fertilization system such as different kinds of fertilizers, application periods, application methods, and the utilization rate of fertilizers, the rationality of fertilization was valued. In order to get higher yield and quality of rice, it is essential to take measures to improve the fertilizer potential.更多还原