野生菊科绿肥的有机肥品质评价

Quality Evaluation of Organic Manure from Wild Compositae Green Manures

为探明我国菊科绿肥的肥用价值,分析了39份采于海南等地的菊科绿肥种质矿质养分含量,进行有机肥分级.结果表明：菊科绿肥的含氮量为0.54％～4.17％（平均为2.01％）,含磷量为0.20％～3.33％（平均为1.36％）,含钾量为0.69％～5.05％（平均为2.41％）;菊科绿肥均为三级以上有机肥,并且绝大多数为一级与二级有机肥,三级有机肥最少.表明菊科总体上是品质较高的有机肥.

The Compositae green manures （GM） of 39 germplasms were collected from different areas.The contents of mineral nutrients and the quality of organic manure from GM were evaluated.The results indicated that the nitrogen contents of 39 Compositae plant germplasms ranged from 0.54% to 4.17% （mean 2.01%）,the phosphorus contents ranged from 0.20% to 3.33% （mean 1.36%）,and the potassium contents from 0.69% to 5.05% （mean 2.41%）.All tested accessions of Compositae plant germplasms had high quality when used as GM.The most of Compositae GMs were categorized into the first-class and secondary organic manures,and few Compositae GMs were third-class organic manures.