摘要
参试的巴拉圭羽叶决明、墨西哥圆叶决明、巴西圆叶决明适宜在南方红壤区作为豆科牧草种植。其产量表现为迟开花的墨西哥圆叶决明产量最高,最早开花的巴西圆叶决明产量最低。决明的茎叶比在各生育期波动较大,巴拉圭羽叶决明、巴西圆叶决明分别在盛花期和结荚期比值最小,而墨西哥圆叶决明在成熟期比值最小。决明叶片的氮、磷、钾、粗蛋白、粗脂肪含量均高于茎秆,且随着成熟度的提高而下降。决明在结荚期至成熟期刈割,获得的营养价值最高。
Cassia nictitans cv ATF2217, Cassia rotundifolia cv 86134 and Cassia rotundifolia cv 92985 are suitable for planting in the red soil region of Southern China. The hay yield of Cassia rotundifolia cv 86134 which blossomed lastly was the highest, but that of Cassia rotundifolia cv 92985 which flowered firstly got the lowest. The ratio of stem to leaf of Cassia is very different in different reproductive periods. The ratio of stem to leaf of Cassia nictitans cv ATF2217 in fullbloming stage, of Cassia rotundifolia cv 92985 in podding stage, and of Cassia rotundifolia cv 86134 in ripening stage reached the minimum respectively. The study also indicated that the contents of N, P, K, crude protein and fat in leaf were higher than those in stem, and they decreased with the enhancement of plant maturity. As a result, the nutritive value of Cassia was the highest, between podding stage and ripening stage. It is suggested that the period between podding and ripening stage is the best time for harvest.
出处
《草业学报》
CSCD
2003年第1期94-98,共5页
Acta Prataculturae Sinica
基金
福建省科技厅重大项目(2000T005)资助。
