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为了解烟-稻轮作模式下的晚稻需肥特性,以指导农民科学合理施肥,嘉禾县于2009～2012年连续4 a在烟-稻轮作主产区进行了5个“3414”晚稻氮、磷、钾肥料效应试验。结果表明:嘉禾县烤烟-晚稻轮作模式下,晚稻的最佳施氮量、最佳施磷量、最佳施钾量分别为50.52、24.29、38.29 kg/hm2,最佳平均产量为7 671.82 kg/hm2。
In order to understand the characteristics of fertilizer demand for late rice under the pattern of tobacco-rice rotation to guide farmers in scientific and rational fertilization, Jiahe County conducted 5 “3414” late rice crops in the main tobacco-rice rotation areas from 2009 to 2012 Nitrogen, phosphorus and potassium fertilizer effect test. The results showed that the optimum nitrogen application rate, the optimum phosphorus application rate and the optimum potassium application rate were 50.52, 24.29, 38.29 kg / hm2 and the best average yield was 7 671.82 kg for late rice under the flue-cured tobacco-late rice rotation model in Jiahe County. / hm2.