Soil fertility, plant mineral nutrition and productivity of irrigated banana for a ten-year period

被引:12
作者
Fernandes, Luiz Arnaldo [1 ]
Ramos, Silvio Junio [2 ]
Valadares, Samuel Vasconcelos [1 ]
Nascimento Lopes, Paulo Sergio [1 ]
Faquin, Valdemar [2 ]
机构
[1] Univ Fed Minas Gerais, Inst Ciencias Agr, BR-39404006 Montes Claros, MG, Brazil
[2] Univ Fed Lavras, Dept Ciencia Solo, BR-37200000 Lavras, MG, Brazil
关键词
Musa; soil analysis; chemical attributes; drip irrigation; tubular deep-well; salinity;
D O I
10.1590/S0100-204X2008001100017
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
The objective of this study was to evaluate changes in soil fertility, in plant mineral nutrition and in the productivity of banana irrigated for a ten-year period. The experiment was carried out in an Oxisol, from 1997 to 2007, in the county of Janauba, Minas Gerais, Brazil, in a commercial banana 'Prata-Ana' (AAB) plantation, where water from a tubular deep-well - containing high salinity and medium concentration of sodium - was used for drip irrigation. The use of irrigation for ten years promotes a sharp rise in pH and in soil electrical conductivity, and causes nutrient imbalances, which limits the productivity of banana. The foliar levels of macro and micronutrientes remain above the reference values for the culture.
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页码:1575 / 1581
页数:7
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