Buscar
Mostrando ítems 31-40 de 893
DISTRIBUTION OF PHOSPHORUS FORMS IN CHILEAN SOILS AND SEWAGE SLUDGE BY CHEMICAL FRACTIONATION AND 31P-NMR
(Sociedad Chilena de Química, 2004)
Transferência de fósforo em pequenas bacias hidrográficas com predomínio de sistema plantio direto precário
(Universidade Federal de Santa MariaBRAgronomiaUFSMPrograma de Pós-Graduação em Ciência do Solo, 2014-03-21)
Agricultural activities generate impacts on the environment and require constant study and monitoring to enhance our understanding about the ways and degree of contamination resulting therefrom. The main objective of this ...
Phosphorus transformation in poultry litter and litter-treated Oxisol of Brazil assessed by 31P-NMR and wet chemical fractionation
(Revista Brasileira de Ciência do Solo, 2017)
Fracionamento químico do fósforo no sedimento dos reservatórios de gargalheiras e carnaúba, localizados na Região Tropical Semiárida
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia Ambiental, 2021-04-28)
Knowing the chemical composition of the sediment in order to determine the mobile fractions of phosphorus (P) is an essential measure in the recovery of eutrophic lakes. The P accumulated in the sediment can be released ...
Spatial correlation between the composition of the clay fraction and contents of available phosphorus of an Oxisol at hillslope scale
(2013-01-01)
Relief is regarded as the abiotic factor most strongly influencing pedogenic processes at a local scale. The spatial correlations between the composition of the clay fraction (iron - Fe and aluminum - Al oxides, kaolinite ...
Spatial correlation between the composition of the clay fraction and contents of available phosphorus of an Oxisol at hillslope scale
(2013-01-01)
Relief is regarded as the abiotic factor most strongly influencing pedogenic processes at a local scale. The spatial correlations between the composition of the clay fraction (iron - Fe and aluminum - Al oxides, kaolinite ...
Organic compounds from plant extracts and their effect on soil phosphorus availability
(Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), 2008-10-01)
O objetivo deste trabalho foi avaliar o efeito de compostos orgânicos de extratos de plantas de seis espécies e da fertilização fosfatada na disponibilidade de fósforo no solo. Tubos de 30 cm de altura e 5 cm de diâmetro ...
Organic compounds from plant extracts and their effect on soil phosphorus availability
(Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), 2008-10-01)
O objetivo deste trabalho foi avaliar o efeito de compostos orgânicos de extratos de plantas de seis espécies e da fertilização fosfatada na disponibilidade de fósforo no solo. Tubos de 30 cm de altura e 5 cm de diâmetro ...