| 氮钾肥对大豆根瘤的形成及固氮活性的影响 |
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| 引用本文： | 程岩,林桂范,陈魁卿.氮钾肥对大豆根瘤的形成及固氮活性的影响[J].东北农业大学学报,1986(1). |
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| 作者姓名： | 程岩 林桂范 陈魁卿 |
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| 作者单位： | 东北农学院农业化学教研室，东北农学院农业化学教研室，东北农学院农业化学教研室 |
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| 摘 要： | 经试验证明,大豆施肥有利于根瘤的形成和生长,并能提高根瘤固氮酶的活性和根瘤的固氮量。特别是在施磷肥的基础上再施以适量的氮钾肥,效果更为显著。除增加根瘤的数目和根瘤重量、提高根瘤的固氮活性外,还能延长根瘤的固氮时期,提高籽实的产量。
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THE EFFECT OF NITROGEN AND POTASSIUM ON NODULE FORMATION AND NODULE N_2-FIXING ACTIVITY OF SOYBEAN |
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| Abstract: | The results of experiments showed that fertilization could promote nodule formation and increase nitrogenase activity and the amounts of N_2-fixed by root nodules. Particularly, on the basis of phosphorus application the suitable amounts of nitrogen and potassium fertilization had advantagenase effects on increasing nodule number, nodule weight and nitrogenase activity. So, it prolongated the stage of N_2-fixing of soybean nodule and increased the soybean grain yield. |
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