Results 71 to 80 of about 20,693 (272)

Modeling organic carbon dynamics under no-tillage and plowed systems in tropical soils of Brazil using CQESTR. [PDF]

, 2015
Made available in DSpace on 2015-01-22T09:05:40Z (GMT). No. of bitstreams: 1 dinamica.carbono.solo.STR.LFernando.pdf: 594077 bytes, checksum: 299ff554c4e53c9c6d24e3cf7ab1f228 (MD5) Previous issue date: 2010-02 ...
CAUSARANO, H. J., DORAISWAMY, P. C., GOLLANY, H. T., LEITE, L. F. C., MENDONÇA, E. S., MILAK, S.   +5 more
core  

Soybean yield performance in oxisols with varying morphological and physicochemical characteristics

Soil Science Society of America Journal, Volume 90, Issue 3, May/June 2026.
Abstract Soybean (Glycine max (L.) Merril) yield in tropical high‐altitude regions is strongly influenced by soil physical and chemical attributes, particularly in highly weathered oxisols, where variability among suborders may affect crop performance.
Anderson Barbosa Evaristo, Reimário de Castro Rodriguês, Alceu Linares Pádua Jr, Fabrício da Silva Terra, Caique Menezes de Abreu, Débora Sampaio Mendes, Adriene Caldeira Batista, Fernanda de Aguiar Coelho, Ricardo Siqueira da Silva   +8 more
wiley   +1 more source

Influence of Extractant and Soil Type on Molecular Characteristics of Humic Substances From Two Brazilian Soils

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, Burba Peter, Herzog Helmut   +2 more
doaj  

SOIL ORGANIC CARBON, CARBON STOCK AND THEIR RELATIONSHIPS TO PHYSICAL ATTRIBUTES UNDER FOREST SOILS IN CENTRAL AMAZONIA

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, Flávio Jesus Luizão, Wenceslau Geraldes Teixeira, Claudia Marie Vitel, Elizalane Moura de Araújo Marques   +4 more
doaj   +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., CAETANO, V. da R., CAIERÃO, E., EICHELBERGER, L., MIRANDA, M. Z. de, NASCIMENTO JUNIOR, A. do, SCHEEREN, P. L., SÓ e SILVA, M.   +7 more
core  

Conversão do cerrado em agricultura no sudoeste da Amazônia: estoques de carbono e fertilidade do solo [PDF]

, 2009
Land use change and land management practices can modify soil carbon (C) dynamics and soil fertility. This study evaluated the effect of tillage systems (no-tillage - NT and conventional tillage - CT) on soil C and nutrient stocks in an Oxisol from an ...
CARVALHO, João Luís Nunes, CERRI, Carlos Clemente, CERRI, Carlos Eduardo Pellegrino, FEIGL, Brigitte Josefine, GODINHO, Vicente de Paula, HERPIN, Uwe, PICCOLO, Marisa de Cássia   +6 more
core   +3 more sources

Five decades of hand‐feel soil texture estimation: Accuracy, challenges, and improvements

Soil Science Society of America Journal, Volume 90, Issue 3, May/June 2026.
Abstract Soil texture refers to the proportion of fine soil particles with diameters less than 2 mm, classified into particle size categories that define the soil texture class. Hand‐feel estimation in the field is widely used by soil scientists and technicians during pedological surveys to characterize soil horizons.
Roberto Barbetti, Maria Fantappiè, Claudia Becagli, Andrea Lachi, Simone Priori   +4 more
wiley   +1 more source

Dissolution of ground basalt and its effect on oxisol chemical properties and cocoa growth [PDF]

, 2009
Obtaining suitable and environmentally sound materials for restoring properties of highly weathered soils (e.g., Oxisols) presents a great challenge. A study was carried out to: (i) determine the ability of ground basalt to increase the negative charge ...
Anda, Markus, Ishak, Cek Fauziah, Jusop, Shamsuddin, Syed Rastan, Syed Omar   +3 more
core   +1 more source

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): I. The Role of Tree Structure

Biotropica, Volume 58, Issue 3, May 2026.
A portion of rainfall that contacts tree canopies is drained down tree stems as stemflow. Stemflow is an underexamined component of rainfall partitioning in tropical forests. To investigate how tree canopy structural attributes influence stemflow in the Brazilian Amazon, we measured stemflow, rainfall, and dendrometric parameters of 56 trees in the ...
Jeferson Alberto de Lima, John Toland Van Stan II, Karolina Lewińska, Agnieszka Dradrach, Jakub Ceglarek, Kelly Cristina Tonello   +5 more
wiley   +1 more source

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, Puentes Orlando, Mesa Luis Jorge   +2 more
doaj