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采用田间试验,研究了在白浆土上不同硅肥施用量对水稻产量构成因素的影响。结果表明,在水稻上施用硅肥,可以显著地提高水稻产量构成因素,随着施肥量的增加,穗数、千粒重、穗粒数均表现出增加的趋势,以施硅量450～750 kg/hm2效果较明显。施肥量与穗数、千粒重呈显著的直线正相关关系,与穗粒数和空瘪率呈显著的二次曲线关系。相关分析表明,不同施肥处理的产量构成因素中,以结实率对水稻产量的影响最大,其次是穗粒数、穗数和千粒重,而空瘪率对水稻产量的影响较小,这表明施用硅肥主要从穗数、千粒重、穗粒数和结实率等方面来提高水稻的产量。
Field experiments were conducted to study the effects of different silicon fertilizers on the yield components of rice in white soil. The results showed that the application of silicon fertilizer on rice could significantly increase the yield components of rice. With the increase of fertilizer application, the spike number, 1000-grain weight and spike grain number all showed an increasing trend. With the silicon application rate of 450-750 kg / hm2 effect is more obvious. There was a significant linear positive correlation between the amount of fertilizer application and the number of spikelets and 1000-grain weight, and significant quadratic curve relationship with the number of grains per spike and the emptying rate. Correlation analysis showed that grain yield, spikelet number and 1000-grain weight were the most important factors in the yield components of different fertilization treatments, and the emptying rate had less effect on rice yield, which indicated that the application of silicon Fertilizer mainly from the spike number, grain weight, grain number and seed setting rate and other aspects to improve rice yield.