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研究结果表明,广东省缺乏有效硅(SiO_2)的土壤约占55.55%,中等含量的占22.22%,丰富含量的占22.23%,其中极丰富者仅占5.56%。肥效试验结果,早稻施硅增产5.0—11.5%,晚稻增产2.2—12.3%,其中达显著标准以上的田块,早、晚稻分别占85.71%和71.43%。氮硅连应研究结果表明,硅可增加稻叶直立度、厚度与光合作用,提高稻体抗病虫能力,使水稻形成叶挺、色淡、迟衰、群体密集的高产株型。
The results show that in Guangdong Province, there are 55.55% of the soil lacking effective silicon (SiO 2), 22.22% of medium content and 22.23% of rich content, of which 5.56% are very rich. Results of fertilizer efficiency showed that rice yield increased by 5.0-11.5% in early rice and 2.2-12.3% in late rice, with 85.71% and 71.43% of the early and late rice reaching significant standards. Nitrogen and silicon connectivity research results show that silicon can increase rice leaf verticality, thickness and photosynthesis, improve rice pest resistance, so that the formation of rice Ye Ting, pale, late decay, group-intensive high-yielding plant type.