四种南方豆科灌木饲料在华南地区的比较试验

为了筛选适宜南方种植的优质豆科灌木饲料品种,本研究采用完全随机区组设计,对圆叶舞草(Codariocaiyx gyroides)、山毛豆(Tephrosia candida)、多花木兰(Indigofera amblyatha)和木豆(Cajanus indica)4种豆科灌木饲料在华南地区进行了比较试验。结果表明,4种豆科灌木均能在华南地区栽培种植,其中圆叶舞草耐寒性能突出,鲜草产量高,耐刈性好,年可刈割3~4次,再生性能强,年可产干草11.60t·hm~(-2),较其它品种分别提高了14.74%~37.78%,且叶量丰富,蛋白质含量高。综合比较分析,圆叶舞草是适宜我国华南地区种植的优质豆科灌木。

Comparison of four fodder species of leguminous shrubs in southern China

In order to select fodder species of leguminous shrubs that are suitable for planting in southern China,we conducted a comparison trial with four fodder species of leguminous shrubs in this region,using a completely random block design.All the four leguminous shrubs species could be planted in southern China.Among the four species,Codariocalyx gyroides showed remarkable resistance to cold stress,produced high fresh yield,showed good performance after cutting (3～4 cutting times a year),showed good regenerative capability,produced hay yield of 11.60 t · (ha · a) 1 (14.74％ ～37.78％ higher than those of other speies) and had higher leaf yield and protein content.After comprehensive analysis and comparison,C.gyroides was identified as the high-quality fodder species of leguminous shrubs suitable for plantation in southern China.