硅肥对玉米的增产效果及增产机理初探

Preliminary Exploration into Yield Increase Effects and Yield Increase Mechanism of Silicate Fertilizer on Maize

在淡黑钙土和黑钙土上 ,硅对玉米有明显的增产作用 ,平均增产 8 6 %。施硅 (1)促进了玉米养分的吸收与运转 ,改善了玉米体内的营养状况 ;(2 )抑制了玉米植株体内水分的蒸腾作用 ,提高了体内水分的利用率 ;(3)增加水分吸收量 3 6 %～ 9 4 % ,改善了植株体内的水分状况。玉米施硅增产的主要机理为上述三方面综合作用的结果。

On the light chernozem soil and the chernozem soil,silicon has remarkable yield increase actions on maize,the yield is increased by8 6%averagely The application of silicon has promoted the absorption of maize to nuˉtrients and the movement and transformation of the nutrients in maize,improved the nutrient conditions in maize plant bodies;inhibited the transpiration of moisture in maize plant bodies,increased the utilization rate of moisture in maize bodies;increased the absorptive amounts of moisture by 3 6%～9 4%,improved the moisture conditions in plant bodies The main mechanism of yield increases resulting from the application of silicon is the result of the multiple actions of the above 3 respects