Search Results - "Prochnow, L. I"

Agronomic and environmental aspects of phosphate fertilizers varying in source and solubility: an update review by Chien, S. H, Prochnow, L. I, Tu, S, Snyder, C. S

“…This review discusses and summarizes the latest reports regarding the agronomic utilization and potential environmental effects of different types of phosphate…”
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Plant Availability of Phosphorus in Four Superphosphate Fertilizers Varying in Water-Insoluble Phosphate Compounds by Prochnow, L.I, Chien, S.H, Carmona, G, Dillard, E.F, Henao, J, Austin, E.R

“…There is concern that the use of lower quality phosphate rock can result in elevated amounts of Fe-Al-P water-insoluble compounds in fertilizers and,…”
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Cadmium Availability from Granulated and Bulk‐Blended Phosphate‐Potassium Fertilizers by Chien, S. H., Carmona, G., Prochnow, L. I., Austin, E. R.

“…ABSTRACT Recent field experiments have shown that high chloride (Cl) in irrigation waters can increase soil cadmium (Cd) uptake by crops because of the…”
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Greenhouse evaluation of phosphorus sources produced from a low-reactive Brazilian phosphate rock by Prochnow, L.I, Chien, S.H, Carmona, G, Henao, J

“…The Patos de Minas phosphate rock (PR) in Brazil is not suitable for direct application due to its low reactivity or for commercial production of P fertilizers…”
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Characterization and Greenhouse Evaluation of Brazilian Calcined Nonapatite Phosphate Rocks for Rice by Francisco, E.A.B, Chien, S.H, Prochnow, L.I, Austin, E.R, Toledo, M.C.M, Taylor, R.W

“…Little information is available on the agronomic effectiveness of calcined nonapatite phosphate rock (PR) sources containing crandallite minerals in the form…”
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Characterization and Agronomic Evaluation of Single Superphosphates Varying in Iron Phosphate Impurities by Prochnow, L.I, Chien, S.H, Taylor, R.W, Carmona, G, Henao, J, Dillard, E.F

“…An increase in the concentrations of water-insoluble iron phosphate (Fe-P) compounds in acidulated P fertilizers has raised the concern that the agronomic…”
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Synthesis, Characterization, and Agronomic Evaluation of Iron Phosphate Impurities in Superphosphates by Prochnow, L. I., Chien, S. H., Dillard, E. F., Austin, E. R., Carmona, G., Henao, J., Singh, U., Taylor, R. W.

“…Two of the most common impurities found in superphosphates (single superphosphate [SSP] and triple superphosphate [TSP]) in the forms of Fe3KH8(PO4)6·6H2O and…”
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Effect of water and citrate solubility on agronomic effectiveness of acidulated phosphates in three consecutive corn crops by L. I. Prochnow, B. van Raij, J. C. Kiehl

“…In the process of phosphate rock acidulation, several impure P compounds may be formed along with the desirable Ca and NH4 phosphates. Such compounds normally…”
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BIOAVAILABILITY OF CADMIUM CONTAINED IN SINGLE SUPERPHOSPHATES PRODUCED FROM DIFFERENT BRAZILIAN RAW MATERIALS by Prochnow, L. I., Plese, L. P. M., Abreu, M. F.

“…The objective of this greenhouse study was to evaluate Brazilian single superphosphates (SSP) in terms of their cadmium (Cd) contents and Cd bioavailability to…”
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Identification of compounds present in single superphosphates produced from brazilian phosphate rocks using SEM, EDX, and X-ray techniques by PROCHNOW, L. I, CLEMENTE, C. A, DILLARD, E. F, MELFI, A, KAUWENBERGH, S

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Modal analysis to estimate the composition of single superphosphates by Prochnow, L.I, Dillard, E.F, Austin, E.R, Chien, S.H, Calvo, C.G

“…Better knowledge of the composition of acidulated phosphorus (P) fertilizers will provide useful information to properly manage these P sources. Single…”
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Influence of cationic impurities in acidulated phosphates on the availability of phosphorus to two corn crops by Prochnow, L.I, Kiehl, J.C, Raij, B. van

“…Based on the problems that arise from the presence of cationic impurities in rock phosphates for fertilizer production, a greenhouse experiment consisting of…”
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Use of ion-exchange resin to evaluate the bioavailability of sulfur in the soil by Prochnow, L.I. (University of Sao Paulo, Piracicaba, SP, Brazil.), Pismel, F.S, Cantarella, H, Vitti, G.C, Corrente, J.E, Kiehl, J.C

“…Samples of 22 soils of the State of Sao Paulo, Brazil were collected from the 0-20 cm layer, dried, sieved, and analyzed for sulfur (S) utilizing the following…”
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Evaluation of rape response to different sources of phosphate rock in an alkaline soil by Chien, S.H, Carmona, G, Henao, J, Prochnow, L.I

“…A greenhouse experiment was conducted to evaluate the agronomic effectiveness of one unground, as received from Tunisia, and eight finely ground phosphate rock…”
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Rainfall intensity and phosphorus source effects on phosphorus transport in surface runoff from soil trays by Shigaki, Francirose, Sharpley, Andrew, Prochnow, Luis Ignacio

“…Phosphorus runoff from agricultural fields amended with mineral fertilizers and manures has been linked to freshwater eutrophication. A rainfall simulation…”
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Plant availability of phosphorus in the neutral ammonium citrate fraction of Brazilian acidulated phosphates by Prochnow, L.I. (Sao Paulo Univ., Piracicaba, SP (Brazil). Escola Superior de Agricultura 'Luiz de Queiroz'), Kiehl, J.C, Raij, B. van

“…In Brazil, where the rock phosphates are high in impurities, no attempthas been made to evaluate the P supplying efficiency of the neutral ammoniumcitrate…”
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Estimativa da acidez potencial pelo método SMP em solos ocorrentes no nordeste Paraense by M. A. P. Gama, L. I. Prochnow, J. R. N. F. Gama

“…A determinação da acidez potencial (H + Al) em amostras de solo pelo método do acetato de cálcio 0,5 mol L-1 a pH 7,0 (método usual) é normalmente utilizada…”
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Controle da volatilização de amônia em compostagem, mediante adição de gesso agrícola e superfosfatos com diferentes níveis de acidez residual by L. I. Prochnow, C. F. Cunha, J. C. Kiehl, J. C. Alcarde

“…Tem sido recomendada a adição de superfosfato simples ou gesso agrícola nas pilhas de estercos e de outros resíduos orgânicos, com a finalidade de reduzir as…”
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Calagem em sistema de semeadura direta e efeitos sobre a acidez do solo, disponibilidade de nutrientes e produtividade de milho e soja by S. G. Moreira, J. C. Kiehl, L. I. Prochnow, V. Pauletti

“…Estudou-se o efeito da calagem na correção da acidez do solo, disponibilidade de alguns nutrientes e produtividade de milho e soja em um Latossolo Vermelho com…”
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Variações induzidas de atributos químicos e sua influência na reflectância espectral de três solos do estado do Paraná by J. A. M. Demattê, G. J. Garcia, L. I. Prochnow

“…O objetivo deste trabalho foi verificar a influência de alterações induzidas em alguns atributos químicos da caulinita e dos solos Latossolo Roxo, Latossolo…”
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