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通过水稻田间试验,分析缓释肥料、常规肥料、不施肥料的水稻各时期的养分变化,摸索到L269水稻在黄泥土型水稻土的养分吸收规律;比较了不同肥量和各类肥料对水稻养分吸收的影响。结果表明:施用肥料不仅影响不同时期水稻体内的养分含量,同时也影响水稻养分的吸收总量,所试缓释肥能满足水稻中期以前对养分的需求。磷元素受包膜的约束过大,不易加工成包膜肥料。
Through field experiments in paddy, the changes of nutrients in slow-release fertilizer, conventional fertilizer and non-fertilizing rice in different periods were analyzed to find out the law of nutrient uptake by L269 paddy soil in paddy soil. The effects of different fertilizers and fertilizers on rice Effect of nutrient absorption. The results showed that the application of fertilizers not only affected the nutrient content of rice in different periods, but also affected the total amount of nutrients absorbed by rice. The slow-release fertilizer could meet the demand for nutrients before the middle of rice. Phosphorus element by the envelope of the constraints is too large, not easy to process coated fertilizer.