Effect of Irrigation with Sewage Effluent and Rhizobia Inoculation on Growth of Tropical Tree Legumes in Northeast Brazil

International Journal of Agriculture and Forestry Pub Date : 2012-08-31 DOI:10.5923/J.IJAF.20120201.12

F. G. D. Carvalho, A. J. N. D. Silva, H. N. Melo, J. L. Melo

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引用次数: 4

Abstract

The use of domestic sewage in the agriculture is an alternative for reduction of the pollution of rivers, pres- ervation of resources hydrics and availability of water and nutritious for plants. An experiment was conducted to investigate the effects of irrigation with sewage effluent and rhizobia inoculation on growth parameters and macro and micronutrients contents in shoots of leguminous trees grown in an Alisol in northeastern Brazil. Irrigation with sewage effluent and rhizo- bium inoculation affected significantly the growth parameters and nodulation of L. leucocephala and M. caesalpiniaefolia. Statistically higher values of shoot dry matter and plant height were observed in leguminous trees irrigated with sewage effluent, compared to treatment with water irrigation.Sewage effluent irrigation treatment also increased significantly the contents of N, P, K, Ca, Mg, Fe, Zn and Mn in shoots of woody legumes studied after harvest. Inoculation with Rhizobium promoted significant increases in growth parameters and macro and micronutrients contents, only when associated with application of sewage effluent.

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污水灌溉和接种根瘤菌对巴西东北部热带豆科树木生长的影响

在农业中使用生活污水是一种减少河流污染、保存资源、保持植物水分和营养的替代方法。本试验研究了污水灌溉和接种根瘤菌对巴西东北部Alisol地区豆科树木生长参数和芽部宏量和微量元素含量的影响。污水灌溉和接种根瘤菌对白头草和金银花的生长参数和结瘤有显著影响。用污水灌溉豆科树木的茎干物质和株高均高于用水灌溉处理。污水灌溉处理也显著提高了收获后木本豆科植物枝条中N、P、K、Ca、Mg、Fe、Zn和Mn的含量。接种根瘤菌促进了生长参数和宏量和微量元素含量的显著增加，只有在与污水处理有关的情况下。

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International Journal of Agriculture and Forestry

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