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据资料报道:水稻增施硅肥,平均每667m2可增产稻谷45～60kg,增产幅度在10%左右。硅已成为水稻增产的四大元素之一。而凌海市土壤肥力仅处在全国地力分级的第四级,中低产田面积较大,占1/4～1/3。且稻田多为盐渍水稻土,土体内硅质和盐基部分易被固定、淋洗,土壤有效硅含量偏低,难以满足水稻高产的需要。为此,凌海市农业技术中心引用了沈宏集团生产的复合硅肥在凌海市安屯乡郑屯村稻田进行了试验研究,其结果如下:
According to information reported: rice increased silicon fertilizer, an average of every 667m2 can increase rice 45 ~ 60kg, increase rate of about 10%. Silicon has become one of the four major elements of rice production. However, Linghai soil fertility is only in the fourth level of the national soil grading, the area of middle and low yield field is larger, accounting for 1/4 ~ 1/3. Most of the paddy fields are saline paddy soils. The siliceous and salt basal parts in the paddy soil are easily fixed, leached and the effective silicon content is low, which is hard to meet the needs of high yield rice. To this end, Linghai Agricultural Technology Center quoted Shen Hong Group’s production of composite silicon fertilizer in the village of Datun Zhengtun Village, Antu Township, Linghai City, the experimental study of the results are as follows: