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dan lin fei dui hong dou cao sheng chan xing neng ying xiang de yan jiu
Author(s): 
Pages: 21-23
Year: Issue:  10
Journal: China Dairy Cattle

Abstract: 红豆草是一种固氮能力不高的豆科牧草,对氮磷肥具有良好的反应.甘肃河西灌区为高钾区,所以本试验以氮磷肥为主.试验表明,在施氮量(N)为15.0kg/666.7m2,氮肥能促进根瘤的形成.在施氮量(N)为22.5kg/666.7m2时,鲜草产量最高;对干物质积累量和鲜草产量而言,单独使用氮肥时,随施氮量的增加,干物质的积累量和鲜草产量亦增加,在干物质的积累量和鲜草产量达到最高后,继续提高施氮量时,则干...
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