Results 51 to 60 of about 1,972 (183)

Papaya carotenoids increased in Oxisols soils

Agriculture and Natural Resources, 2017
Abstract The papaya fruit is healthy for humans as it contains high levels of antioxidants and provitamin A due to high lycopene and β-carotenes contents, respectively. The carotenoids were determined from papayas grown in three different locations—Kamphaeng Saen (KS), Sisaket (SK), and Tha Mai (TM)—and also the study investigated whether the Oxisols
Kamonwan Sangsoy, Orarat Mongkolporn, Wachiraya Imsabai, Kietsuda Luengwilai   +3 more
openaire   +1 more source

Geoestatística e atributos do solo em áreas cultivadas com cana-de-açúcar Geostatistics and soil attributes in area cultivated with sugar cane

Ciência Rural, 2010
Em solos sob cultivo de cana-de-açúcar, o tráfego intenso de máquinas agrícolas pode provocar estado de compactação ao solo. Portanto, o objetivo deste trabalho foi caracterizar a variabilidade espacial de atributos físicos e teor de matéria orgânica de ...
Zigomar Menezes de Souza, José Marques Júnior, Gener Tadeu Pereira   +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

Coinoculation of Bradyrhizobium and Azospirillum to Mitigate the Effects of Drought Stress in Soybean Plants

New Zealand Journal of Agricultural Research, Volume 69, Issue 4, August 2026.
Bacteria of the genus Azospirillum have been used to mitigate negative effects of drought stress. Since there is few information on interaction of new strains of A. brasilense and soil water status, we evaluated the effects of coinoculation of A. brasilense strains (Ab‐V5/Ab‐V6 and HM053) on soybean plants grown either with (40% of field capacity) or ...
Alex Pinto de Matos, Liandra Harine Kulika, Carolina Weigert Galvão, Eduardo Augusto Agnellos Barbosa, Rafael Mazer Etto, André Belmont Pereira, Eduardo Fávero Caires   +6 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  

Understanding cation exchange capacity through the landscape lens of the Busoga Catena, Uganda

Soil Science Society of America Journal, Volume 90, Issue 4, July/August 2026.
Abstract This study identifies the parent material (PM) and examines cation exchange capacity (CEC) across the Busoga catena. In 2022 and 2023, we described 32 pedons and collected 147 samples. Laboratory analyses were particle size analysis, organic carbon (OC) content, pH, and CEC.
Rebecca Alice Wokibula, Francis Akitwine, Johnson Godlove Mtama, Moureen Mbeiza, Richard C. Schultz, Richard M. Cruse, Andrew K. Manu, David G. Acker, C. Lee Burras   +8 more
wiley   +1 more source

Can one‐dimensional infiltration models reproduce soil moisture variations in landslide‐prone hillslopes? Evidence from Petrópolis, Brazil

Soil Science Society of America Journal, Volume 90, Issue 4, July/August 2026.
Abstract The distribution of soil moisture, resulting from the movement of infiltrated water, plays a fundamental role in the hydrological dynamics of hillslopes and in the triggering of landslides. Although water flow in soils occurs in multiple directions due to combined vertical and lateral fluxes, one‐dimensional (1D) flow models are widely adopted
Danúbia Teixeira, Gean Paulo Michel, Nelson Ferreira Fernandes, Franciele Zanandrea, Artur Nonato Vieira Cereto, Otto Corrêa Rotunno Filho   +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  

Ammonium phosphate fertilizers are a more effective phosphorus source than superphosphate for wheat grown on acidic gravelly soils

Soil Science Society of America Journal, Volume 90, Issue 4, July/August 2026.
Abstract Selecting the most effective phosphorus (P) fertilizer source is essential for maximizing crop yields. However, there is little information to guide the choice between the widely used soluble granular sources: ammonium phosphates and superphosphates.
Craig A. Scanlan, Raj Malik, Fien Degryse, Andrew Van Burgel, Mike J. McLaughlin   +4 more
wiley   +1 more source

Pedotransfer functions for estimating the maximum bulk density of major Brazilian agricultural soils: Model comparison and validation

Soil Science Society of America Journal, Volume 90, Issue 4, July/August 2026.
Abstract The Proctor compaction test is the standard method for determining the maximum bulk density (Dbmax) of a soil, a key parameter for obtaining the degree of compaction. However, this method is labor‐intensive and time‐consuming, making it impractical for routine soil quality assessment.
Diego Tassinari, Michel Coutinho de Souza, Eduardo Souza Cândido, Ayodele Ebenezer Ajayi, Alberto Salomão Nhaca, Darcio Cesar Constante, Moacir de Souza Dias Junior, Bruno Montoani Silva   +7 more
wiley   +1 more source