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玉米约占全国粮食总产的 2 0 % ,施肥在玉米增产诸因素中能起到 2 5%～ 30 %的作用。通过试验 ,玉米施用硅肥后能提高抗青枯病能力 ,施肥量为 750 kg/ hm2 时 ,在玉米上的增产效果达到 14%～ 2 3.4 % ,投入产出比为 1∶ 10～ 2 0。
Corn accounts for about 20% of the total grain output in the country. Fertilization can play a role of 25% -30% in the increase of corn yield. Through the experiment, corn can improve the resistance to bacterial wilt after applying silicon fertilizer. When the fertilizer amount is 750 kg / hm2, the corn yield can reach 14% -2 23% and the input-output ratio is 1:10 ~ 20 .