Phosphorus fertilization on the development and production of pigeonpea in the cerrado oxisol in first cultivation [Adubação fosfatada no desenvolvimento e produção de feijão guandu em latossolo vermelho do cerrado em primeiro cultivo]
Bonfim-Silva E.M.,Federal University of Mato Grosso |
Guimaraes S.L.,Federal University of Mato Grosso |
Farias L.N.,Institute Ciencias Agrariase Tecnologicas UFMT |
de Oliveira J.R.,Institute Ciencias Agrariase Tecnologicas UFMT |
And 2 more authors.
Bioscience Journal | Year: 2014
Phosphorus is an important macronutrient required by all plants for growth, development and reproduction, and the most important production factor for agriculture after liming in soils under Cerrado vegetation. Thus, the objective was to evaluate the development and production of pigeonpea subjected to fertilization without inoculation of Cerrado Oxisol in first cultivation. The experiment was conducted in a greenhouse in August-November 2010. We used 3 dm3 pots containing soil collected at 0-20 cm depth in the Cerrado. The experimental design was completely randomized design with six levels of phosphorus (P2O5): 0; 50; 100; 150; 200, e 250 mg dm-3 with four replications. There was a significant effect at 5% probability for all variables adjusted for the quadratic and linear regression. The best development and production of pigeonpea occurs within phosphorus levels of 162 the 225 mg dm -3. The pigeonpea respond positively to fertilization, without the inoculation of seeds in the soil of the Cerrado in first cultivation area.