Chemical composition and decomposition rate of plants used as green manure

Scientia Agricola

Gabriela Tavares Arantes Silva²  Laudiceio Viana Matos¹  Pedro De Oliveira Nóbrega²  Eduardo Francia Carneiro¹  Alexander Silva De Resende¹ 

[1] ,UFRRJSeropédica RJ ,Brasil

关键词: nutrient recycling;    half life time;    agroforest system;    ciclagem de nutrientes;    tempo de meia vida;    sistema agroflorestal;   

DOI  :  10.1590/S0103-90162008000300010

来源: SciELO

【 摘 要 】

Productive systems in which green manure is the source of nutrients must develop more efficient ways to improve soil nutrient dynamics. A well-synchronized balance must be established between specific crop demands and supply of nutrients from decomposition. However, scientific data and information to help improve green manure management in Brazil is still insufficient. For that reason, a number of arboreal species was first chemically characterized and then subjected to decomposition analysis in order to establish a correlation between some parameters. Species were grouped together based on the similarity of chemical composition and decomposition rate. The lignin:N and (lignin+polyphenol):N ratios were found to have the greatest correlation coefficient with the dry matter decomposition rate and nitrogen release.

【 授权许可】

CC BY   
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