Absorption of nutrients by cowpea irrigated with saline water under different leaching fractions

被引：1
|
作者：
Tagliaferre, Cristiano [1 ]
Guimaraes, Diogo U. G. [2 ]
Goncalves, Lorena J. [3 ]
Amorim, Carlos H. F. [1 ]
Campos, Willian V. [3 ]
Rocha, Felizardo A. [4 ]
机构：
[1] Univ Estadual Sudoeste Bahia, Dept Engn Agr & Solos, Vitoria Da Conquista, BA, Brazil
[2] Empresa Modulo Rural, Vitoria Da Conquista, BA, Brazil
[3] Univ Estadual Sudoeste Bahia, Vitoria Da Conquista, BA, Brazil
[4] Inst Fed Bahia, Campus Avancado Vitoria da Conquista, Vitoria Da Conquista, BA, Brazil
来源：
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL | 2016年 / 20卷 / 12期
关键词：
salinity; leaching depths; irrigation; MINERAL-NUTRITION; SALT STRESS; GROWTH; ASSIMILATION; SEEDLINGS;
D O I：
10.1590/1807-1929/agriambi.v20n12p1067-1071
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Salinity is one of the main environmental problems that negatively affect plant growth and metabolism, besides being one of the factors responsible for the decrease in the yield of crops, especially in arid and semiarid regions. Thus, the aim of this study was to evaluate the effects of soil salinity on the mineral nutrition of irrigated cowpea. The experiment was conducted in drainage lysimeters in a greenhouse, in a completely randomized design with seven treatments, one irrigated with freshwater (control) and six irrigated with saline water with different leaching fractions (5, 10, 15, 20, 30 and 40%) of the applied irrigation depth, with three replicates. The irrigation with saline water treatments did not affect significantly the contents of macronutrients and Na in the cowpea leaves, while the opposite behavior occurred with the micronutrients.
引用
收藏
页码：1067 / 1071
页数：5
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