20 documents found, page 1 of 2
Caracterização de um solo salinizado em área irrigada da região Semiárida
Vital, A. F. M.; Santos, R. V.; Lopes, J. A.; Muraoka, T.A expansão das áreas irrigadas no semiárido acarreta sérios problemas de degradação dos solos, principalmente de salinização, reduzindo a capacidade produtiva das culturas. A compreensão de aspectos pedológicos é fundamental durante o manejo dessas áreas. Objetivou-se com esse trabalho a caracterização do solo de uma área irrigada visando a preservação da qualidade dos solos nos perímetros irrigados. Foi selec...
Estudos sobre a nutrição mineral do cafeeiro: XXXI. influêcia do cobre do subst...
Andrade, V. M. de [UNESP]; Lourenço, R. S.; Muraoka, T.; Malavolta, E.Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:41:42Z No. of bitstreams: 1 S0071-12761976000100042.pdf: 2031674 bytes, checksum: 90ccce458c1993124db12a8311d90577 (MD5); Made available in DSpace on 2013-08-22T18:41:42Z (GMT). No. of bitstreams: 1 S0071-12761976000100042.pdf: 2031674 bytes, checksum: 90ccce458c1993124db12a8311d90577 (MD5) Previous issue date: 1976-01-01; Made availa...
Formação de populações-bases de aves para corte. I. Avaliação de melhoramento g...
Buzetti, S.; Muraoka, T.; Mauro, A. O.Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2014-02-26T17:04:35Z No. of bitstreams: 0; Made available in DSpace on 2014-02-26T17:04:35Z (GMT). No. of bitstreams: 0 Previous issue date: 1991-06-01; Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:19:33Z No. of bitstreams: 0; Made available in DSpace on 2014-05-20T15:19:33Z (GMT). No. of bitstreams: 0 ...
Doses de zinco em diferentes condições de acidez de um solo de cerrado. II. Nív...
Buzetti, S.; Muraoka, T.; Mauro, A. O.Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2014-02-26T17:04:35Z No. of bitstreams: 0; Made available in DSpace on 2014-02-26T17:04:35Z (GMT). No. of bitstreams: 0 Previous issue date: 1991-06-01; Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:20:54Z No. of bitstreams: 0; Made available in DSpace on 2014-05-20T15:20:54Z (GMT). No. of bitstreams: 0 ...
Estudo comparativo entre fatores químicos na produção de feijoeiro (Phaseolus v...
Primavesi, Odo; Mello, F.A.F. de; Muraoka, T.Experiments were carried out in greenhouse, at ESALQ-USP, in Piracicaba, Brazil, with soil samples of the A and B2 horizon of Oxisol (LR) and an Alfisol (PVp), without and with lime and mineral fertilizer, to verify which are the chemical-nutritional factors in deficiency in the B2 horizon of both soils, compared with the A horizon, and which need to be considered for the adequate exploration of the genetical h...
Dry matter and grain yield, harvest index and water use efficiency by common be...
Primavesi, O.; Mello, F.A.F. de; Muraoka, T.Experiments were carried out in greenhouse, at ESALQ-USP, in Piracicaba, Brazil, with soil samples of the A and B2 horizon of an Oxisol (LR) and an Alfisol (PVp), without and with lime and mineral fertilizer, to verify the influence of the aeration porosity (5,1 to 28,7%) on the behaviour of the common bean Aroana 80. The water content in the 2,5 liter soil per pot, was mantained between 100 and 70% of the fiel...
Studies on the kinetics of absorption of phosphorus by rice (Oryza sativa L.) a...
Baraibar, A.; Villamil, J.; Fiore, M.F.; Marcondes, R.F.; Muraoka, T.; Cabral, C.P.; Malavolta, M.L.; Malavolta, E.Three experiments were conducted under controlled conditions with the objectives of evaluating the effect of different concentrations of phosphorus and on the presence of other ions on the kinetic of absorption. Excised roots of rice and bean were placed in aereated solutions containing increasing concentrations of NaH2PO4 (10-7 M to 5x10-2M) during 90 minutes. The rate of absorption (v = mmols P/g dry matter) ...
Effect of the fertility level of two soils subjected to compaction on the behav...
Primavesi, O.; Mello, F.A.F. de; Muraoka, T.A greenhouse experiment were conduced with soil of the A horizon of an Oxisol (LR) and an Alfisol (PVp), confined in 3,8 liter pots, and cultivated with two bean cultivars, with and without fertilizer. The soil samples were subjected to compaction and mantained with a soil water tension between 100 to 300 mbars. The dry matter,wich normaly reduce the accumulation with the compaction level, had his behavior afec...
Absolute and relative concentration, relations, accumulation and nutritional ef...
Primavesi, O.; Mello, F.A.F. de; Muraoka, T.Experiments were carried out in greenhou se, at ESALQ/USP, in Piracicaba, SP, Brazil, with soil samples of the A and B² horizon of an Oxisol (LR) and an Alfisol (PVp), without and with mineral fertilizer and lime to achieve a CEC saturation of 80% and a Ca:Mg:K relation of 16:4:1, besides a disponible P level of 15 ppm, to verify the influence of the variation of the aeration porosity (from 24 to 3%) on the beh...
Nutritional efficiency of common bean (Phaseolus vulgaris L.) on an ox i sol an...
Primavesi, O.; Mello, F.A.F. de; Muraoka, T.Two cultivars of common bean were grown in soil samples of an Oxisol (LR) and an Alfisol (PVp), with and without fertilizer, subjected to three compaction levels , and confined in 3.8 liter pots. The data showed that with the increase on soil compaction, there was a general tendency, in the above ground part at the end stage, to increase the nutritional efficiency of K and to decrease of the N, P, Mg, Ca, Cu an...