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研究了硅对水稻(Oryza sativa L.)生长发育及产量结构的影响,并提出了适宜的施硅量。结果表明,水稻施用硅肥能增加比叶重和叶面积指数,能通过增加穗粒数、实粒数和千粒重提高水稻产量,水稻施硅增产幅度为3.45%~15.69%。江汉平原地区水稻硅肥(Si O2)用量建议15~30 kg/hm2。
The effects of silicon on the growth and yield structure of rice (Oryza sativa L.) were studied, and the suitable silicon application amount was proposed. The results showed that the application of silicon fertilizer could increase the specific leaf weight and leaf area index, increase the yield of rice by increasing the number of grains per spike, the number of solid grains and the weight of 1000 grains. The rate of yield increase of rice was 3.45% -15.69%. The recommended dosage of Si O2 in Jianghan Plain is 15 ~ 30 kg / hm2.