硅、锌肥配合施用对水稻生长和产量的影响

Effects of Applying Silicon Fertilizer Combined with Zinc Fertilizer on the Growth and Grain Yield of Rice

研究了硅、锌肥配合施用对水稻生长和产量的影响。田间试验结果表明,每公顷配合施用60 kg硅肥和3 kg锌肥,对水稻生长有明显的促进作用。施肥处理与对照相比较,水稻有效穗平均提高8.6%,空壳率平均下降7.1%。硅、锌肥配合施用能显著提高水稻产量,与对照相比,施肥区的水稻平均增产率达到10.85%。3种不同土壤上的试验结果,以灰潮土增产率最高,为13.16%;紫泥土田和黄棕壤田次之,增产率分别为10.39%和9.01%,增产效果均达到显著水平。与对照区比较,硅、锌肥配合施肥区土壤p H绝对相差值提高0.57,水稻硅、锌肥配合施用能有效阻止土壤的酸化。

Effects of applying silicon fertilizer combined with zinc fertilizer on the growth and grain yield of rice were studied. Results showed that rice growth was significantly promoted due to application of silicon fertilizer （60 kg/hm^2） combined with zinc fertilizer （3 kg/hm^2）. Compared with the control, number of productive spike in rice increased by 8.6% and percentage of vacant shell in rice decreased by 7.1% in fertilization treatment. The application of silicon fertilizer combined with zinc fertilizer the significantly increased grain yield of flee. Grain yield of rice increased by 10.8% in fertilization treatment compared with control. Rice rate of increment was the highest in aquod soil with 13.16%, the second was 10.39% in purple soil, and the third was 9.01% in yellow-brown soil. Grain yield of rice was significantly increased in three types of soil due to application of silicon and zinc fertilizer. Soil pH value increased by 0.57 in fertilization treatment compared with the control. The application of silicon fertilizer combined with zinc fertilizer in rice effectively prevented soil acidification.