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中国农学通报

中国农学通报 ›› 2003, Vol. 19 ›› Issue (4): 19-19.

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栽培技术对健宝草产量的影响

杨恒山, 王国君,邰利民, 刘海宇, 霍秀娟   

  • 出版日期:2003-08-25 发布日期:2003-08-25

Effects of cultivation techniques on yields of Jumbo

YANG Heng-shan WANG Guojun TAI Limin LIU Haiyu   

  • Online:2003-08-25 Published:2003-08-25

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525

摘要： 对健宝播期、密度、施肥、灌水进行单因素试验，结果表明：健宝夏播亦可获得较高的生物产量，是等雨晚播和麦后复种较理想的饲料作物；春播健宝的适宜栽培密度为2.0×105株/hm2；追施尿素75kg/hm2草产量及施肥效率均较高；4次灌水较雨养条件下一次性刈割鲜草产量增加53.3%，二次刈割鲜草产量增加66.9%，健宝宜在具备灌溉条件的地区种植。

关键词: 夏玉米, 夏玉米, 水氮互作, 氮素积累, 氮素运转, 氮肥利用率

Abstract: The effects of sowing time,density,irrigation and fertilization on Jumbo were studied with single-factor experiments.The results showed:Jumbo was a ideal forage crop in late sowing for rain and multiple cropping after wheat .It’s optimum sowing density was 2.00×105plant/hm2.There were higher yields and more efficiency with 75.0kg/hm2 Urea application than those of others.Compared with those of non-irrigation ,the yields of 4-time-irrigation were respectively increased by 53.3%, 66.9% in fresh forage yields of one-time-harvestand and two-time-harvest .Jumbo was suited to growing in areas with irrigation condition.