Effect of composted textile sludge on growth, nodulation and nitrogen fixation of soybean and cowpea

被引：37

作者：

Araujo, A. S. F.

Monteiro, R. T. R.

Carvalho, E. M. S.

机构：

[1] Univ Estadual Piaui, BR-64202220 Parnaiba, PI, Brazil

[2] Ctr Energia Nucl Agr, BR-13400970 Piracicaba, SP, Brazil

[3] Univ Fed Piaui, BR-64049550 Teresina, PI, Brazil

来源：

BIORESOURCE TECHNOLOGY | 2007年 / 98卷 / 05期

关键词：

industrial wastes; nitrogen fertilization; symbiosis; glutamine synthetase;

D O I：

10.1016/j.biortech.2006.04.028

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The effect of composted textile sludge on growth, nodulation and nitrogen fixation of soybean and cowpea was evaluated in a greenhouse experiment. The compost was incorporated into soil at 0, 9.5, 19 and 38 t ha(-1) (bases upon the N requirement of the crops, i.e., 0, 50, 100 and 200 kg available N ha(-1)). Growth, nodulation and shoot accumulation of nitrogen were evaluated 36 and 63 days after plant emergence. Nodule glutamine synthetase (GS) activity and leghemoglobin content were evaluated 63 days after emergence. Composted textile sludge did not show negative effects on nodule number and weight, nodule GS activity and leghemoglobin content. Nitrogen accumulation in shoot dry matter in soybean and cowpea was higher than other treatments with application of 19 t ha(-1) of compost. Composting can be an alternate technology for the management of solid textile mill sludge. This study verifies that the composted textile sludge was not harmful to growth, nodulation and nitrogen fixation of soybean and cowpea. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1028 / 1032

页数：5

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