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探索在生产实际中施肥量对鲜食糯玉米农艺性状、产量性状以及经济效益的影响,总结鲜食糯玉米高产栽培措施,为北京市密云县糯玉米生产提供高产、高效栽培技术。试验材料中,鲜食糯玉米品种为京科糯2000,底肥混合施用3种肥为(NH4)2HPO4、CO(NH2)2和K2SO4肥。试验在底肥施用量(N、P2O5、K2O用量分别为4.5、11.5、12.5kg/667m2)相同的基础上,设追施N量0.0、4.5、9.0、13.5和18.0kg/667m2的5个肥力梯度,通过考察各个肥力梯度的生育时期、植株性状、穗部性状、抗逆性以及产量性状,并对经济效益进行分析,认为追施N量13.5kg/667m2为鲜食玉米的最佳施肥量。
To explore the effects of fertilizer amount on agronomic traits, yield traits and economic benefits of fresh waxy corn in the actual production, summarize high yielding cultivation methods of fresh waxy corn, and provide high yield and high efficient cultivation techniques for glutinous corn production in Miyun County, Beijing. Among the tested materials, the fresh waxy corn was Jingke Nuo 2000 and the three kinds of fertilizer were (NH4) 2HPO4, CO (NH2) 2 and K2SO4. Based on the same base fertilizer application rates (N, P2O5 and K2O, respectively 4.5, 11.5 and 12.5 kg / 667m2), five fertility gradients of 0.0, 4.5, 9.0, 13.5 and 18.0 kg / The optimal fertilization rate of fresh corn was obtained by investigating the growth stages, plant traits, panicle traits, stress resistance and yield traits of each fertility gradient. The economic benefits were also analyzed.