Results 81 to 90 of about 26,126 (298)
Acta Amazonica, 2004 Com o objetivo de determinar as características de adsorção de fósforo utilizando-se a isoterma de Langmuir, e suas relações com algumas propriedades físicas e químicas de solos, foi desenvolvido um estudo no Laboratório de Solos do Instituto Nacional de
Newton Paulo de Souza Falcão +1 more
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Soil phosphorus properties and management for perennial crops in the central Amazon. [PDF]
, 2014 Predominant soils in the Brazilian Amazon. Phosphorus constraints to continuous soil use in the Brazilian Amazon. Phosphorus fertilization to perennial crops in the central Amazon.
CRAVO, M. S. +2 more
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Fate of some heavy metals in soils: a review [PDF]
, 2011 This review revealed that heavy metals are naturally components of the soil orchestrated by weathering processes and that the abundance of these metals in our soil environment nowadays is due to numerous anthropogenic activities.
Frank, Uzu Ogbonnaya, Orhue, Ehi Robert
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Journal of the Brazilian Chemical Society, 1999 In a previous study it was observed that humic substances (HS) extracted with NaOH solution and with Na4P2O7 solution presented different molecular weights, and also that the extracted HS yield by each method varied between an Oxisol and a Mollisol from ...
Dick Deborah Pinheiro +2 more
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Revista Árvore, 2016 The soil carbon under Amazonian forests has an important roles in global changing, making information on the soil content and depths of these stocks are considerable interest in efforts to quantify soil carbon emissions to the atmosphere.This study ...
Jean Dalmo de Oliveira Marques +4 more
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Sugarcane response to polyhalite fertilizer in Brazilian Oxisols
Agronomy Journal, 2020 AbstractPolyhalite (PYH), (K2SO4·MgSO4·2CaSO4·2H2O), contains four nutrients of great importance to sugarcane (Saccharum spp.), but has lower water solubility than traditional K fertilizers. Two studies were conducted to determine if PYH fertilizer (11.6% K) promoted sugarcane response comparable to other K fertilizers on highly weathered, acidic ...
Paulo Sergio Pavinato +5 more
openaire +2 more sources
Biofuels, Bioproducts and Biorefining, Volume 20, Issue 1, Page 253-267, January/February 2026.Abstract Energy cane has emerged as a promising feedstock for biorefineries due to its high fiber yield and potential for diversified bioproducts. This study evaluated the fiber composition of 190 energy cane genotypes and assessed their theoretical potential for producing second‐generation (2G) ethanol, polyethylene, and xylitol.
Pietro Sica +6 more
wiley +1 more source
BRS 328 - Double haploid bread wheat cultivar. [PDF]
, 2018 The wheat cultivar 'BRS 328' was developed by Embrapa from a cross between KleinH3394 and PF 990744. The pre-harvest sprouting resistance of 'BRS 328' is good and the grain yieldhigh.
BRAMMER, S. P. +7 more
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Factors controlling spatio-temporal variation in carbon dioxide efflux from surface litter, roots, and soil organic matter at four rain forest sites in the eastern Amazon [PDF]
, 2007 [1] This study explored biotic and abiotic causes for spatio-temporal variation in soil respiration from surface litter, roots, and soil organic matter over one year at four rain forest sites with different vegetation structures and soil types in the ...
Aragao, L. E. O. C. +9 more
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Efecto del Silicio sobre la disponibilidad de fosforo en un Andept y un Oxisol
Agronomía Colombiana, 1991 El presente ensayo trató de cuantificar el efecto de la adición y época de aplicación de enmiendas silicatadas (ceniza de<br />cascarrilla de arroz y metasilicato de sodio) sobre la disponibilidad de fósforo en dos suelos altamente fijadores del ...
Moncada Jairo Orlando +2 more
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