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吉林省东部“3414”施肥对玉米生物学性状及产量的影响试验结果表明,施纯N 180 kg/hm2、P2O5105 kg/hm2、K2O 80 kg/hm2的处理在2个时期的全展叶片数最多,分别为8.0、13.8片;穗粒数、收获粒数、千粒重最大,分别为621粒、3 415.5万粒/hm2、322 g;产量最高,为10 935.0 kg/hm2;去除化肥的投入,其纯收入还是最高,为15 976.0元/hm2。表明该处理N、P、K的配比有利于光合作用,增强有机物质生产和供给能力,促进玉米粒的形成,明显提高玉米产量。因此,在吉林省东部种植玉米纯N、P2O5、K2O最佳施用量分别为180、105、80 kg/hm2,为该区域玉米优质高效生产、达到增产增收提供有力的技术支撑。
Effects of fertilization on the biological characters and yield of maize in the eastern part of Jilin Province The results showed that N 180 kg / hm2, P2O5105 kg / hm2 and K2O 80 kg / The number of grain was the highest, the number of grains was the highest, the grain yield was the highest, which was 10 935.0 kg / hm 2; , Its highest net income, or 15 976.0 yuan / hm2. The results showed that the ratio of N, P and K was favorable to photosynthesis, enhanced the production and supply of organic matter, promoted the formation of corn grains and significantly increased the yield of corn. Therefore, the optimal application rates of maize pure N, P2O5 and K2O in the eastern part of Jilin Province were 180, 105 and 80 kg / hm2, respectively, which provided strong technical support for high quality and efficient production of maize in the region and increased production and income.