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为给北镇地区水稻测土配方施肥提供理论依据,就氮磷钾不同配比模式对水稻的影响效果进行试验。试验结果表明,推荐施肥区(N1P1K1)和习惯施肥与推荐施肥搭配区(N1P2K2)的产量高于其他处理的水稻产量,肥料利用率高些,增产效果好,经济效益显著。其中以推荐施肥N—14.2、P—7、K—7的配方最佳,能实现增产增收。根据本试验区域土壤状况在生产上可以施用此施肥配方,但易受土壤条件和气候制约,也需因地制宜予以应用。同时从生产实际上看出,在氮磷钾肥施用上以1/3氮肥、全部磷肥、2/3钾肥做底肥,后期追施2/3氮肥和1/3钾肥为最佳施肥模式,能够达到高产稳产高效的目的。
In order to provide a theoretical basis for soil testing and formula fertilization of rice in North Town, the effects of different NPK fertilization models on rice were tested. The results showed that the yield of N1P1K1 and N1P2K2 were higher than those of other treatments. The yield of fertilizer was higher, the yield was better and the economic benefit was significant. Among them, the best fertilization N-14.2, P-7 and K-7 formula was the best, which could increase yield and income. According to the soil conditions in this test area, the fertilization formula can be applied in production, but it is susceptible to soil conditions and climate constraints and should be applied according to local conditions. At the same time from the production actually see, in the N, P and K fertilizer application of 1/3 nitrogen fertilizer, all phosphate fertilizer, 2/3 potash as the base fertilizer, late topdressing 2/3 and 1/3 potash fertilizer is the best mode of fertilization, High yield and stability of the purpose of high efficiency.