不同前作对冬牧70黑麦产量和品质的影响  

Effects of different preceding crops on yield and forage quality of succeeding crop of rye 70(Secale cereale)

作　　者：朱练峰[1] 江海东[1] 周琴[1] 高雅[1] 曹卫星[1] 

机构地区：[1]南京农业大学作物生长调控农业部重点开放实验室,江苏南京210095

出　　处：《草业科学》2005年第10期51-54,共4页Pratacultural Science

基　　金：江苏省国际科技合作计划(BZ2001038);国家科技部"十五"攻关项目(2004BA520A14)

摘　　要：在南京地区研究了不同前作(水稻Oryza satica和杂交狼尾草Pennisetum americanum×P.purpu-reum)对冬牧70黑麦Secale cerealevar.Dongmu 70产量、再生情况和营养品质的影响。结果表明:水稻茬种植的冬牧70黑麦较杂交狼尾草茬种植的再生茎蘖数多,株高高,干物质积累多;水稻茬冬牧70黑麦,2次刈割鲜干比也明显比杂交狼尾草茬的高,第2次刈割的茎叶比较杂交狼尾草茬的低。因此,在水稻茬种植冬牧70黑麦产量较高,品质也较好。This experiment was conducted to study the effect of different preceding crops of rice and hybrid Pennisetum on yield, regeneration and forage quality of rye in Nanjing. The result showed that： rye with a preceding crop of rice has more regenerative tillers, higher plant height, and accumulate more dry matter than those with a preceding crop of hybrid Pennisetum. Ratio of fresh weight to dry weight （FW/DW） of two times of rye with a preceding crop of rice cropping after rice was higher than that of rye with a preceding crop of hybrid Pennisetum. And the ratio of stem to leaf of second time of rye with a preceding crop of rice was lower than that with a preceding crop of hybrid Pennisetum. In summary, the yield and quality of rye w,th a preceding crop of rice were better than those with a preceding crop of hybrid Pennisetum.

关 键 词：不同前作 冬牧70黑麦 产量 品质 

分 类 号：S543.6[农业科学—作物学]