【摘要】 为明确硫酸钾镁肥在水稻上的施用效果,采用大田试验的方法,设置5个不同施肥量处理,研究了不同硫酸钾镁肥施用量对水稻产量、品质和经济效益的影响。结果表明:早稻施用硫酸钾镁肥652 kg/hm2,晚稻施用978 kg/hm2时水稻产量最高,稻谷品质和施肥效益较好。在氮、磷肥基础上合理施用硫酸钾镁肥,能增加水稻的产量,改善水稻植株的农艺性状和稻米品质,促进水稻植株对氮、磷、钾、硫、镁等营养元素的吸收,提高水稻种植的经济效益。更多还原

【Abstract】 The effect of the fertilizer efficiency of sulphate-potassium magnesium in rice was studied.Field experiments were carried out to find out the effects of five different SPM fertilizer application treatments on production,quality and economic benefit of rice.To applied SPM fertilizer 652 kg/hm2 on early rice and 978 kg/hm2 on late rice,the production,quality and fertilization of rice all had the best effects.The rational SPM fertilizer application based on nitrogen and phosphorus could increase rice’s production,improve the agronomic characters and quality of rice,promote the absorption of rice plant on nitrogen,phosphorus,potassium,sulfur and magnesium etc,and enhance the economic benefit of rice-cultivation.更多还原