Cultivation of forage sorghum varieties irrigated with saline effluent from fish-farming under semiarid conditions

被引：12

作者：

Guimaraes, Miguel J. M. ^{[1
]}

Simoes, Welson L. ^{[2
]}

Tabosa, Jose N. ^{[3
]}

dos Santos, Jose E. ^{[4
]}

Willadino, Lilia ^{[5
]}

机构：

[1] Univ Fed Rural Pernambuco, Dept Agr Engn, Recife, PE, Brazil

[2] Embrapa Semiarido, Petrolina, PE, Brazil

[3] Inst Agron Pernambuco, Recife, PE, Brazil

[4] Univ Pernambuco, Petrolina, PE, Brazil

[5] Univ Fed Rural Pernambuco, Dept Biol, Recife, PE, Brazil

来源：

REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL | 2016年 / 20卷 / 05期

关键词：

leaching fraction; salinity; Sorghum bicolor (L.) Moench; PLANTS;

D O I：

10.1590/1807-1929/agriambi.v20n5p461-465

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study aimed to evaluate the cultivation of forage sorghum subjected to different leaching fractions with saline effluent from fish-farming under semiarid conditions. The experiment was set in a randomized block design, with four blocks, in split plots, composed of four leaching fractions (0; 5; 10 and 15%) and three forage sorghum varieties ('Volumax', 'F305' and 'Sudao'). Irrigation was performed using saline effluent from fish farming with electrical conductivity of 2.5 dS m(-1). The analyzed variables were: plant height; stem diameter; width, length and number of leaves; fresh and dry matter yield, and relative contents of potassium and sodium in the shoots. Forage sorghum under saline effluent irrigation and leaching fraction of 15% shows a yield increase of 25%, in comparison to sorghum without the leaching fraction. The variety 'Volumax' was more sensitive to salinity than the others, since it showed lower shoot growth and low values of leaf area, fresh matter and dry matter.

引用

页码：461 / 465

页数：5

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