WANG Li-gang,LIU Ke-li,GAO Ju-lin,et al.STUDY ON THE LAW OF PHOSPHORUS ABSORPTION IN SOYBEAN[J].Soybean Science,2007,26(01):30-35.[doi:10.3969/j.issn.1000-9841.2007.01.008]
大豆对磷素吸收规律的研究
- Title:
- STUDY ON THE LAW OF PHOSPHORUS ABSORPTION IN SOYBEAN
- 文章编号:
- 1000-9841(2007)01-0030-06
- Keywords:
- Soybean; Phosphorus; Fertilization
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- 以北丰—14为供试品种,采用五因素三水平实施方案,系统的研究了大豆在不同密度、施肥量处理下,各器官磷素含量和对磷素的吸收规律。结果表明:随着生长发育进程的推进,大豆各器官磷素浓度大小因器官而异,均呈下降趋势;大豆对磷素最高吸收速率出现在结荚至鼓粒期,最高吸收速率为5.28mg/株?d,吸收量约占全生育期总吸收量的30%~50%左右;适宜密度和氮磷钾适量配施,可显著提高大豆磷素的吸收量与吸收速度,并能显著提高大豆的经济产量。
- Abstract:
- The experiment studied phosphorus concentration in each soybean organ and the law of phosphorus absorption under different densities and fertilizer treatments, taking Beifeng-14 as test variety and adopting 5 factors and 3 levels treatment. The results were as following: As growing of soybean, the phosphorus concentration in different soybean organ were all descending; The largest absorption rate appeared form pod-setting to pod-filling, which was 5.28mg/d individual plant, occupied 30%~50% of the whole growth period absorption; suitable density and the mixture of nitrogen phosphorus-kalium could increase the phosphorus absorption amount and rate, and also the soybean yield.
参考文献/References:
[1]吴明才,肖昌珍,郑普英.大豆磷素营养研究[J].中国农业科学,1999,32 (3):59-65.
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备注/Memo
基金项目:内蒙古自治区“九五”重大科技攻关课题(960101)资助