【摘要】 对野生播娘蒿不同生育期的鲜草产量及营养价值进行了研究。结果表明,不同生育期的鲜草产量及营养价值差异显著;未抽苔期粗蛋白质和粗脂肪含量最高,且随着成熟度的提高而下降;开花期鲜草产量和营养价值均较高,是播娘蒿的最佳刈割期。播娘蒿粗蛋白和粗脂肪含量低于苜蓿,而粗蛋白含量高于黑麦草,营养化学类型基本为N型,是一种品质较好的饲草。更多还原

【Abstract】 The fresh grass yield and nutritive value of wild Descurainia sophia were studied in different growth stages. The results indicated that the fresh grass yield and nutritive value were significant difference in different growth stages. The contents of crude protein (CP) and fat (EE) before bolting stage were the highest, and then decreased with the enhancement of plant maturity. The fresh grass yield and nutritive value of blooming stage were the highest. It is suggested that the blooming stage is the best time for harvest. The contents of crude protein and fat in D. sophia were lower than in Medicago sativa, but crude protein higher than in Lolium perenne. The chemical type of nutrition in D. sophia basically belongs to N type. It is a quite good forage.更多还原