Effects of N, P and liming on field of beans
A field experiment with bean (Phaseolus vulgaris L.) in a podzolic red-yellow soil, Itaguaí Genes. A 53 factorial was used with five different doses of nitrogen, phosphorus and liming combined. This experiment had its results analysed statistically. Linear and quadratic significative effects for the phosphorus and linear for the liming in the production of bean grains were determined. The obtained equation of production of bean was Ŷ = 1,020.520 + 2,595 X2 - 0.005 X22+ 91,322 X3 in function of the significative nutrients. The dose of phosphorus that maximized the production of beans was 259,5 kg/ha of P2O5, giving a production of 1,357.220 kg/ha of bean. The increases verified in the production of bean plant because of the significative effects of the nutrient phosphorus and lime showed to be very economic for the agricultunists. The optimum economic dose calculated (156,800 kg/ha of P2O5), which optimized the production of bean, presented profits of Cr$ 8,337.57 and Cr$ 2,458.53 by hectare in the presence (4 ton/ha) and in the absence of dolomitic calcareous used, respectively.
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| Format: | Digital revista |
| Language: | por |
| Published: |
Pesquisa Agropecuaria Brasileira
2014
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| Online Access: | https://seer.sct.embrapa.br/index.php/pab/article/view/15653 |
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