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完备的配方施肥技术还应包含因地增施中微量元素肥料,赤水市等赤水河流域稻田土壤主要为紫色砂壤,为了解该类稻田水稻生产中氮磷钾配方施肥的情况下,增施硅、锌这2个微量元素肥的效应,采用随机区组设计进行了田间试验,结果表明,增施硅肥、锌肥,可增加水稻有效穗,提高穗实粒数和千粒重,从而显著提高水稻产量,并且也能显著增加经济收益。建议赤水市等赤水河流域紫色砂壤稻田中水稻生产上,不仅要注重氮磷钾三元素的配方施肥,同时也要注重增施硅肥、锌肥,从而进一步提高水稻产量与经济收益。
The complete formula fertilization technology should also include the increase of trace elements due to fertilizer, Chishui City and other Chishui River paddy soil is mainly purple soil, in order to understand the type of paddy rice NPK fertilizer applications, the increase Silicon and zinc were studied in field experiments using randomized block design. The results showed that adding silicon fertilizer and zinc fertilizer increased the effective panicles of rice, increased the number of grains per panicle and 1000-grain weight, and thus significantly increased Rice yields also can significantly increase economic returns. Suggesting Chishui City Chishui River red purple sand soil paddy rice production, not only to pay attention to the three elements of nitrogen, phosphorus and potassium formula fertilization, but also pay attention to the application of silicon, zinc, thereby further improving rice yield and economic benefits.