19份野生豆科绿肥的有机肥品质评价

Quality Evaluation of Organic Manure from 19 Accessions of Wild Leguminous Green Manure Plants

分析19份采自海南、广西、广东、福建、云南等地的豆科绿肥种质的矿质养分含量,并在此基础上利用有机肥分级评价方法对这些豆科种质进行有机肥分级.结果表明：19份豆科绿肥的大量元素含量变异较大,其中含氮量为12.4～ 43.8 g·kg^-1（平均22.2 g.kg^-1）,含磷量为4.3 ～16.7 g·kg^-1（平均9.7g.kg^-1）,含钾量为5.6 ～31.1 g·kg^-1（平均12.9 g·kg^-1）.供试的19份豆科绿肥种质的有机肥评价结果显示,大多数为2级有机肥,3级和1级有机肥均仅有1份,说明这19份豆科绿肥都足品质较高的绿肥.

Nineteen accessions of germplasm of leguminous green manure plants collected in various localities from Hainan,Guangdong,Guangxi,Yunnan provinces were determined in terms of crude organic matter content and mineral nutrients content,and their organic manure quality was evaluated based on the analysis of the mineral elements content.The results indicated that the 19 accessions of the leguminous plant germplasm varied substantially in macro nutrient element content.Their nitrogen content ranged from 12.4 g · kg^-1 to 43.8 g · kg^-1 （the mean：22.2 g · kg^-1）,the phosphorus content from 4.3 g · kg^-1 to 16.7 g · kg^-1 （the mean：9.7 g · kg^-1）,and the potassium content from 5.6 g · kg^-1 to 31.1 g · kg^-1 （the mean：12.9 g · kg^-1）.All the accessions of the leguminous plant germplasm had a high quality of organic manure when used as green manure,most of which were listed in the Grade Ⅱ of the organic manure,with one in Grade Ⅲ and one in Grade Ⅰ.This indicated that these 19 accessions of the leguminous green manure plants under evaluation are green manure plants with high quality of organic manure.