摘要
把饲草作为主要作物引入耕作制,通过3年3重复随机区组定位试验研究,构建适于四川紫色丘陵区坡耕地应用的粮饲高效种植模式。结果表明,冬季以小麦为主,间套黑麦草、燕麦等冬季饲草,夏季以苏丹草、菊苣等夏季饲草为主的种植模式与对照麦/玉/苕种植模式相比,能够稳定小麦籽粒产量,8～9倍的提高饲草鲜产,提高50%以上的可饲用干物产出,提高粗蛋白产出1倍以上,增加产值30%以上。冬季以小麦为主,间套黑麦草、燕麦等冬季饲草,夏季以苏丹草、菊苣等夏季饲草为主的种植模式能在稳定粮食产量的同时,大幅提高紫色丘陵区旱坡耕地饲料产出,为区域畜牧业发展提供优质饲料保障,是适用于该区域的可持续高效旱坡地种植模式。
The aim of this study was to introduce forage crops as a main rotation crop,and to establish an efficient crop rotation suitable for the slope arable land of the purple soil area in Sichuan.A completely randomized block design was used with three replicates during three years of study.Compared with that from the CK,the yields of fresh forage,feedstuff dry matter and crude protein were promoted by 800%-900%,50%,and 100%,respectively under a crop rotation with wheat and ryegrass,or with oats in winter and with grass sorghum and chicory in summer.The benefit of wheat was more than 30% and the yield was maintained.The new crop rotations can maintain foodstuff yield in the purple soil area,and at the same time,can improve the yields of feedstuffs,thereby providing security of high quality feedstuff for stockbreeding.These are sustainable crop rotations in the slope purple farming area of Sichuan province.
出处
《草业学报》
CSCD
北大核心
2010年第3期110-116,共7页
Acta Prataculturae Sinica
基金
四川省财政育种工程项目
国际植物营养研究所项目
国家科技支撑计划(项目编号:2006BAD05B06)
丘区简阳市种养加复合型现代农业技术集成研究与示范(项目编号:2007z06-30)
四川省科技厅应用基础项目(项目编号:2008JY0022-1)
公益性行业(农业)科研专项(2008326029)资助
关键词
坡耕地
饲草
种植模式
效益
slope arable land
forage grass
crop rotation
benefit
