贵州易旱坡地黔兴201玉米高产氮磷钾配比研究

摘要

为了解决贵州地区玉米高产施肥问题,以黔兴201玉米为研究对象,采用L9(34)氮磷钾三因素三水平试验方法,设计了不同的氮磷钾配比,通过在贵州平坝地区田间试验研究玉米的营养特性和施肥效应,以筛选出最佳氮磷钾配比.结果表明:氮肥360 kg/hm2、磷肥225 kg/hm2、钾肥105 kg/hm2印氮磷钾比例为1:0.63:0.29时,玉米的产量达到了11 536.35 kg/hm2,且玉米品质最好.这一研究结果对指导喀斯特易旱地区玉米生产和合理施肥提供了理论依据.%In order to study the question of maize fertilization in Guizhou Province, we did a field experiment using L9(34) NPK three factors three level test in Pingba County. The effect of applying fertilizer on nutrition characteristic of com Qianxing 201 and its output were studied by preparing different treatments of nitrogen(N), phosphorus(P), and potassium(K). The results showed that when combine the N of 360 kg, P2O5 of 225 kg, K2O of 105 kg each hm2 of area can remarkably enhance the output and quality of com. The results provides a theoretical basis of instructing production of corn and rational application of fertilizer.