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选择了高肥力田、低肥力田,通过早、晚双季稻连续2年4季的大田试验,研究了施用硅基材料包膜肥对双季稻动态生长、产量、土壤肥力、微生物量、酶活性的影响。结果表明:不论是高肥力田还是低肥力田,与传统施肥相比,一次性基施硅基材料包膜肥能提高双季稻的最大分蘖数3~6枝·兜~(-1),提高成熟期叶片的叶绿素含量,提高成熟期双季稻的生物产量7.8%~22.4%,提高年均产量3.0%~14.7%,并且在低肥力田上效果显著。与传统施肥处理相比较,施硅基材料包膜肥可以显著提高双季稻成熟期土壤中的矿质态氮含量,提高幅度为28.3%~37.7%。包膜肥对土壤中微生物群落没有影响,在低肥力田施用80%的包膜肥其土壤酶活性综合指数最高。由此可见,施用硅基材料包膜肥在南方水稻上完全可以替代分次施用常规肥料,并且在高肥力田减少20%肥料用量的情况下仍然等效,达到了减肥增效和节本省工的目的。
Through field experiments of early and late double cropping rice for two years and four seasons, the effects of silicon-based coated fertilizer on dynamic growth, yield, soil fertility, soil microbial biomass, Effect of enzyme activity. The results showed that compared with the traditional fertilization, the one-way silicon-based material coated fertilizer could increase the maximum number of tillers of double-cropping rice by 3 ~ 6 pcs ~ (-1) and increase the maturity, no matter in high fertility field or low fertility field. The leaf chlorophyll content increased the biological yield of double crop rice at maturity by 7.8% -22.4%, increased the annual yield by 3.0% -14.7%, and had significant effect on low fertility field. Compared with the traditional fertilization treatment, the silicon-based material coated fertilizer can significantly increase the content of mineral nitrogen in the soil of double cropping rice by 28.3% -37.7%. Envelope fertilizers had no effect on the microbial community in the soil. In the low fertility field, the comprehensive index of soil enzyme activity was the highest with 80% coated fertilizer. Thus, the application of silicon-based material coated fertilizer in the South of rice can completely replace the conventional application of conventional fertilizers, and fertilizers in the field to reduce 20% of the amount of fertilizer is still equivalent to achieve weight loss and efficiency and save costs the goal of.