不同耕地类型与不同复种模式对饲草产量的影响  

Influences of Different Farmland Types and Multiple Cropping Patterns on Yield of Forage Grass

作　　者：方社会 朱斌 魏伯平 尚来贵 张岩竹 丁宁平 张文旭[1,3] 

机构地区：[1]平凉市农业科学研究所,甘肃平凉744000 [2]黄南藏族自治州泽库县人民政府,青海黄南811400 [3]中国农业大学草地所,北京100193

出　　处：《湖南农业科学》2013年第3期34-37,共4页Hunan Agricultural Sciences

摘　　要：在陇东黄土高原的川水地、塬地和山坡地,分别进行了6种粮食-饲料作物的10种不同栽培模式的研究。结果表明:不同耕地类型复种模式鲜草产量差异很大,在同一耕地类型中,秋播冬小麦鲜草产量均低于冬大麦,冬小麦鲜草产量水地最高,为52.57 t/hm2,而山地最低,为33.66 t/hm2,冬大麦鲜草产量水地最高,为75.19 t/hm2,而旱塬最低为52.61 t/hm2。春播的复种中,水地冬小麦—糜子产量最高,为82.35 t/hm2,而旱塬冬大麦—燕麦产量最低为13.98 t/hm2。但在所有耕地类型所有复种模式中,总鲜草产量最高的是水地冬大麦—糜子,为154.66 t/hm2,而旱塬冬小麦—燕麦最低,为62.10 t/hm2。不同耕地类型不同复种模式饲草干草总产量不同,干草总产量以水地冬大麦—糜子最高,达到33.88 t/hm2,而山地冬小麦—荞麦最低,仅为16.84 t/hm2。In order to find an optimum multiple cropping pattern for different types of farmland in loess plateau of eastern Gansu province, six kinds of grain and forage crops were cultivated in irrigable plain, arid plateau and hilly land with ten different cropping patterns, respectively. The results showed that there was a big difference in yield of fresh forage among different cropping patterns for different types of farmland. For the same farmland type, yield of fresh forage with cropping pattern of sowing winter wheat in autumn was less than that with cropping pattern of sowing winter barley in autumn. For cropping pattern of sowing winter wheat in autumn, the yield of fresh forage was the highest in irrigable plain （52.57 t/hm2） and the lowest in hilly land （33.66 t/hm2）; for cropping pattern of sowing winter barley in autumn, the yield of fresh forage was the highest in irrigable plain （75.19 t/hm2） and the lowest in arid plateau （52.61 t/hm2）. When sowing in spring, the yield of fresh forage was the highest （82.35 t/hm2） in irrigable plain with cropping pattern of winter wheat- millet and the lowest （13.98 t/hm2） in arid plateau with cropping pattern of winter barley-oat. However, among all of multiple cropping patterns and all of farmland types, the total yield of fresh forage was the highest （154.66 t/hm2） in irrigable plain with the cropping pattern of winter barley-millet and the lowest （62.10 t/hm2） in arid plateau with the cropping pattern of winter wheat-oat. The total yield of hay was different in different types of farmland with different cropping patters, which was the highest （33.88 t/hm2） in irrigable plain with the cropping pattern of winter barley-millet and the lowest （16.84 t/hm2） in hilly land with the cropping pattern of winter wheat-buckwheat.

关 键 词：耕地类型 粮—饲复种 一年两收 鲜草 干草 

分 类 号：S812.8[农业科学—草业科学]