CAJ | 학술논문

采用大田试验，以驻豆7号为供试材料，研究了不同氮、磷、钾肥配比对大豆株高、叶片SPAD值、地上干物质重、根瘤数以及产量构成因子、产量的影响。结果表明：与不施肥对照比，施肥处理能显著提高大豆产量6.59%~21.98%，科学合理的氮磷钾肥配施，能促进大豆生长发育，增加干物质积累，调节大豆产量构成因素，增加产量。在豫南地区，为获得大豆高产，最合理的氮磷钾肥配比为N：P2O5：K2O=2：4：3，推荐施肥量为：N 45 kg/hm2、P2O590 kg/hm2、K2O 67.5 kg/hm2。
채용대전시험，이주두7호위공시재료，연구료불동담、린、갑비배비대대두주고、협편SPAD치、지상간물질중、근류수이급산량구성인자、산량적영향。결과표명：여불시비대조비，시비처리능현저제고대두산량6.59%~21.98%，과학합리적담린갑비배시，능촉진대두생장발육，증가간물질적루，조절대두산량구성인소，증가산량。재예남지구，위획득대두고산，최합리적담린갑비배비위N：P2O5：K2O=2：4：3，추천시비량위：N 45 kg/hm2、P2O590 kg/hm2、K2O 67.5 kg/hm2。
Using field experiment and Zhudou No.7 to study the effects of combined application of NPK fertilizers with different ratios on plant height, leaf SPAD value, dry-matter weight of overground part, number of root nodule, yield and yield components of soybean. The results showed that compared with the control of no fertilization, the fertilization treatments could improve the yield of soybean signiifcantly by 6.59%~21.98%;scientiifc and reasonable combined application of NPK fertilizers can promote the growth and development of soybean plant, increase the accumulation of dry matter, adjust the yield components, and increase soybean yield signiifcantly. In the southern Henan province, to obtain the high-yield of soybean, the optimum ratio of NPK fertilizers was N:P2O5:K2O=2:4:3, and the optimal fertilizer rate of N, P2O5 and K2O was 45 kg/hm2, 90 kg/hm2 and 67.5 kg/hm2, respectively.