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以鲁黄1号为试材,研究了不同密度、氮磷钾肥料配比及灌溉对鲁黄1号的产量和农艺性状的影响。结果表明:不同密度和肥水条件下,大豆产量存在显著差异,鲁黄1号适宜密度为20～30万株·hm-2,最佳密度为25万株·hm-2左右;不同灌水处理间花荚期灌水增产效果最好,鼓粒期灌水次之;氮磷钾配施、基肥和追肥相结合的增产效果好;花荚期灌水配合N75P112.5K112.5施肥配比产量最高,达到3 250.8 kg·hm-2。淮北地区鲁黄1号的建议施肥量为氮肥50～90 kg·hm-2,磷肥和钾肥70～120 kg·hm-2。
Taking Luxi No.1 as test material, the effects of different N, P and K fertilizers and irrigation on the yield and agronomic traits of Luhuang 1 were studied. The results showed that there were significant differences in yield of soybean under different densities and fertilizer-water conditions. The optimum density of Luhuang 1 was 200,000-3000 plants · hm-2 and the optimum density was about 250,000 hm-2. The effect of yield increase was the best in flowering and podding stage, followed by the irrigation in drum stage. The combination of N, P, K and basal fertilizer with topdressing had a good yield increase effect. The flowering of podded stage had the highest yield with N75P112.5K112.5 fertilization, reaching 3 250.8 kg · hm-2. The recommended fertilizer amount of Luhuang 1 in Huaibei area is 50-90 kg · hm-2 of nitrogen fertilizer and 70-120 kg · hm-2 of phosphate fertilizer and potash fertilizer.