adubação mineral do feijoeiro: vii - efeitos de n, p, k, s,da calagem e de uma mistura de micronutrientes, no sul do planalto paulista mineral fertilizers for dry beans: vii - effects of n, p, k, s,liming and a mixture of micro-nutrients in the southern section of the são paulo plateau
Clicks: 188
ID: 184479
1966
No sul do Planalto Paulista foram conduzidas, em 1962-63, cinco experiências de adubação do feijoeiro em terra-roxa-misturada com argilito do Glacial. Das quatro experiências em que se estudaram seus efeitos, o fósforo aumentou significativamente a produção em três; o nitrogênio, em uma; o potássio, o enxôfre e uma mistura de micronutrientes (Zn, Cu, B e Mo), em nenhuma. Testada em duas localidades, a calagem só proporcionou aumento significativo naquela cujo solo tinha pH de 4,65.
Five fertilizer experiments with dry beans (Phaseolus vulgarisL.) were conducted in the southern section of the São Paulo plateau. In the four experiments in which their effects were tested, phosphorus increased significantly the yields in three localities; nitrogen, in one; potassium, sulfur and a mixture of micro-nutrients (Zn, Cu, B and Mo), in none. Liming, whose effects was studied in two localities, increased significantly the yield only in one of them, where the soil pH was 4.65.
Five fertilizer experiments with dry beans (Phaseolus vulgarisL.) were conducted in the southern section of the São Paulo plateau. In the four experiments in which their effects were tested, phosphorus increased significantly the yields in three localities; nitrogen, in one; potassium, sulfur and a mixture of micro-nutrients (Zn, Cu, B and Mo), in none. Liming, whose effects was studied in two localities, increased significantly the yield only in one of them, where the soil pH was 4.65.
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Authors | ;Shiro Miyasaka;E. S. Freire;H. A. A. Mascarenhas;Milton Alcover |
Journal | revista espanola de salud publica |
Year | 1966 |
DOI | 10.1590/S0006-87051966000200010 |
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