Ecological Adaptability of Several Tropical Legumes Forage Shrubs in South Guizhou Province
The ecological adaptability of seven leguminous forage shrubs varieties was tested in south Guizhou.The results showed that five varieties,including Pinkflowers Indigo,Shortleaf Senna,Pigeonpea,Pale Rattle Box and Yunnan Bauhinia,could flower and seed normally in south Guizhou.Three varieties including Pinkflowers Indigo,Shortleaf senna,and Pigeonpea,showed resistance to drought and soil infertility,higher fresh and dry mass yield and seeds yield.The annual fresh mass,dry mass yield and seed yield for Pinkflowers Indigo,Shortleaf senna,Pigeonpea was 54.24 t/hm2,16.49 t/hm2,and 2 430.04 kg/hm2;31.54 t/hm2,6.47 t/hm2,1 727.53 kg/hm2;15.44 t/hm2,4.90 t/hm2,2 345.89 kg/hm2,respectively.The crude protein content was 16.77%~26.07%.They are worth for promoting south Guizhou as excellent leguminous forage shrubs.