摘要
健宝是近年来引入我国适于农田种植的新型牧草,兼具高产、优质、多抗、多次刈割及鲜草持续供应期长的优势。2002年在内蒙古西辽河平原进行的健宝刈割试验结果表明:刈割次数对健宝有效分蘖数、根干重、支持根数、茎叶比、鲜干比、粗蛋白质含量、粗纤维含量均有显著影响;一次性刈割干草产量最高,达40.08t/hm2,分别是二次刈割、三次刈割干草产量的1.38倍、1.87倍;二次刈割鲜草产量最高,达162.42t/hm2,分别是一次刈割、三次刈割鲜草产量的1.20倍、1.16倍;三次刈割粗蛋白质产量最高,达2.63t/hm2,分别为一次刈割、二次刈割粗蛋白质产量的1.73倍、1.17倍。
Jumbo was introduced into China in recent years.As a new variety of forage,Jumbo with characteristics of high yield and quality,multiple resistances and harvests,and longer supply period than that of others forages,was suited to plant in farmland.Experiments were conducted on the effects of clipping times on the yields,qualities and some biological characteristics of Jumbo in 2002.The results showed:clipping times remarkably effected on the number of effective tillering,dry weight of root and number of root,ratio of stalk to leaf(SLR),ratio of fresh forge weight to hay weight(FDR),content of crude protein and crude fiber.The hay yield of one_time_clipping was 1.38 times and 1.87 times of that of two_clipping_time and three_time_clipping,respectively,and it reached 40.08t/hm2.The green forage yield of two_time_clipping was 1.20 times and 1.16 times of that of one_clipping_time and three_time_clipping,respectivily,and it was 162.42t/hm2.The crude protein yield of three_time_clipping(2.63t/hm2) was the highest among that of the three clipping ways; compared with one_time_clipping,two_time_clipping,it was increased 73.0%,16.9% of one time_clipping,and two_time_clipping,respectively.
出处
《中国草地》
CSCD
2003年第3期28-31,共4页
Grassland of China
关键词
牧草
刈割次数
健宝
产草量
品质
粗蛋白质产量
Jumbo
Clipping times
Yield of fresh forage
Hay yield
Yield of crude protein
