Response of six common beans cultivars to phosphate and potassium fertilization in Lichinga, Niassa, Mozambique.

A field experiment was conducted to check out the response of the common bean BRS 293 Pontal to basic fertilization with Phosphorus (P) and Potassium, in the environmental conditions of Lichinga, Niassa, Mozambique. A complete factorial 5x4 was used, with five rates of P2O5 (0, 35, 70, 140, and 280 kg/ha, as Triple Superphosphate) and four rates of K2O (0, 50, 100 and 200 kg/ha, as Potassium Chloride). The experimental area was also fertilized with 90 kg/ha of Nitrogen (N), as Urea, spliced in 23 kg N/ha at planting and 67 kg N/ha 20 days after plants emergency. Each treatment was replicated four time in the field, in randomized blocks (18 m2 each, with five liner of six lineal meters each, spaced 0,45 cm, with nine seeds seeded per meter). At harvest (area of 3 m within the central lines), it was evaluated the plant final stand, degree of lodging, number of pods per plant, number of grains per pod, weight of 100 grains, and productivity. Based in the analysis of the data, it is concluded that maximum productivity, equivalent to 3,616 kg of grains/ha, would be obtained with a combination of 406 kg/ha of P2O5 and 43 kg/ha of K2O. Such rate is above what would be expected, which indicates that new studies would be necessary for better recommendation of P2O5 fertilization in this area.

Bibliographic Details

Main Authors:	CARVALHO, M. da C. S., COBUCCI, T., MELO, L. C., FERREIRA, G. B., DENARDIN, J. E., MATADIUA, C. A. P., SILVA, H. R. da, MIRANDA, C. H. B., SILVA FILHO, P. M. da, NEUMAIER, N., CRUZ, I., ROCHA, M. de M., ALMEIDA, R. P. de, MUSSA, V., DAMBA, G., KAUNDA, J. B.
Other Authors:	MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF; TARCISIO COBUCCI, CNPAF; LEONARDO CUNHA MELO, CNPAF; GILVAN BARBOSA FERREIRA, CNPA; JOSE ELOIR DENARDIN, CNPT; CELSO A. P. MUJTADIUA, MRE-ABC; HENOQUE RIBEIRO DA SILVA, SRI; CESAR HERACLIDES BEHLING MIRANDA, CNPAE; PEDRO MOREIRA DA SILVA FILHO, CNPSO; NORMAN NEUMAIER, CNPSO; IVAN CRUZ, CNPMS; MAURISRAEL DE MOURA ROCHA, CPAMN; RAUL PORFIRIO DE ALMEIDA, CNPA; VALERIO MUSSA, IIAM-CZINw; GUILHERME DAMBA, IIAM-CZINw; JOHN B. KAUNDA, IIAM-CZINw.
Format:	Parte de livro biblioteca
Language:	pt_BR por
Published:	2015-02-24
Subjects:	Projeto Pro Savana, Feijão, Phaseolus vulgaris, Potássio, Fosfato, Adubação,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1009620
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