[J].HEILONGJIANG AGRICULTURAL SCIENCES,2008,(03):66-67.[doi:10.11942/j.issn1002-2767.2008.03.0066]
氮和钾肥对大豆的增产效果
- 文章编号:
- 1002-2767(2008)03-0066-02
- 分类号:
- S565 .106.2
- 文献标志码:
- A
- 摘要:
- 采用大区对比法试验, 以磷肥为基础研究了氮、钾肥对大豆产量的影响, 其主要结果如下:(1)大豆施肥必须考虑大豆固氮的特点, 施肥既能促进根瘤的发育, 发挥其固氮能力, 又能给大豆补充营养。(2)为了大豆增产的需要, 施用18 .75 kg·hm -2 氮素以保证大豆生育初期的需要。(3)在当前生产条件下, 在施用磷肥的基础上,增施18.75 kg ·hm -2 氮素, 增产6 %, 施钾素60 kg ·hm -2 增产12 .3 %并可提早成熟3 d , 氮磷钾配合施用增产效果更显著, 增产28 %。
参考文献/References:
[ 1] 赵丽琴, 吉明光, 邓永贵, 等.施肥对大豆吸收氮磷钾的影响[ J] .黑龙江八一农垦大学学报, 2005 , 17(3):29-31 .
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备注/Memo
第一作者简介:李洪喜(1960-), 男, 黑龙江省绥化市明水县人,农艺师, 从事农业技术推广工作。Tel:0455-6221651 ;E-mai l:m s50351 @163 .com 。