【作者】 龙会英； 张德； 朱红业； 金杰； 史亮涛； 张明忠；

【Author】 LONG Hui-ying1,ZHANG De1,ZHU Hong-ye2,JIN Jie1,SHI Liang-tao1, ZHANG Ming-zhong1 (1.Institute of Tropical Eco-agriculturai Sciences,Yunnan Academy of Agriculture Sciences, Yuanmou,Yunnan 651300,China;2.Science and Technological Division, Yunnan Academy of Agricultural Sciences,Kunming 650231,China)

【机构】 云南省农业科学院热区生态农业研究所； 云南省农业科学院科研管理处；

【摘要】 对16个豆科牧草在元谋干热河谷引种研究表明:参试材料中,除蝴碟豆、大叶千斤拔及卵叶出蚂蝗由于气候差异性不能结实外,其它牧草均能适应本区种植,并完成整个生育期。其中,银合欢属表现出产量高、叶量大、适口性好等特点,但易被飞虱虫危害,易感木虱病。产量排列前3名牧草是银合欢K636、新银合欢和热研1号银合欢,它们的干草产量分别为26933.9kg/hm2、24882.6 kg/hm2和22459.2kg/hm2,羊对这些牧草的喜食程度为5。其次新罗顿豆、金合欢和木田菁也表现产量高,适口性好等特点。其中,新罗顿豆还表现出叶量大、干鲜比低等特点,其干鲜比为0.27,茎叶比为0.73,羊对它的的喜食程度为5,是一种可以直接鲜食的牧草,但易被蝗虫和蚜虫轻度啃食嫩叶。卵叶山蚂蝗表现产量最低,茎叶比最高,其干草产量为920.8kg/hm2,茎叶比为1.96,不适宜作为本区的牧草生产草种。克拉豆花期注意防治害虫,提高接荚率。更多还原

【Abstract】 The study of introduction in the dry and hot Yuanmou valley for 16 legume forage has indicated that:except that Centrosema pubescens Benth,Flemingia macropylla,and Desmodium ovalifolium have no seed because of weather,the others are acclimated in this area and could grow well in the whole growth period. Leuecaena leucocephala has the property of hign yield,many leaves,good palatability,but was damaged severely by plant hopper and phylloxera.The top three yield ranking is Leuecaena leucocephala K636,Leuecaena leucocephala(Lam.)De wit,Leuecaena leucocephala(Lam.)De wit cv.Reyan No.2.dry weight separately is 26933.9 kg/hm2、24882.6 kg/hm2、22459.2 kg/hm2.And the food habit preference level for sheep is 5.The next is Neotononis wightii(Wight & Arn.)Lackey cv.Tinarroo,Acacia farnesiana(Linn)Willd and Sesbania grandiflora (L.)Pers.with high yield and good palatability.Besides,Neotononis wightii(Wight & Arn.)Lackey cv.Tinarroo with high leaf yield and low DW/FW ratio,DW/FW is 0.27,stem/leaf ratio is 0.73.And that is a fresh eaten forage but the young leaf are attracted gnawing easily by locust and plant louse.And the food habit preference level for sheep is 5.The lowest yield forage is Desmodium ovalifolium Wall.,dry weight 920.8 kg/hm2,DW/FW ratio 1.96. with the largest DW/FW ratio.Therefore,Desmodium ovalifolium Wall.is not fit for planted in Yuanmou. Avoiding the pest damage during blooming period can Increasing Cratylia argentea Benth pod number.更多还原