Results 61 to 70 of about 7,278 (259)

Morpho-physiological analysis of adaptive responses of common bean (Phaseolus vulgaris L.) to drought stress. Thesis (Ph.D.) [PDF]

, 2016
Common bean (Phaseolus vulgaris L.) is the most important food legume in the diet of poor people in the tropics. This legume is cultivated by small farmers and is usually exposed to unfavorable conditions with minimum use of inputs.
Polanía Perdomo, José A.
core   +1 more source

Interactions Between Dissolved Organic Carbon and Aluminium Activity in Tropical and Temperate No‐Till Agroecosystems

Journal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
Conceptual model of depth‐stratified soil acidification under long‐term no‐till in temperate (Washington, USA) and tropical (Brazilian Oxisol) systems. Nitrogen inputs promote surface acidification (↓pH) and increased Al3+ activity, while lime or silicate amendments modify base cation dynamics. Increased DOC–Al complexation reduces free Al3+ and alters
Joao A. Antonangelo, Richard T. Koenig
wiley   +1 more source

CARACTERIZACIÓN DE ÁCIDOS HÚMICOS Y FÚLVICOS DE UN MOLLISOL BAJO DOS COBERTURAS DIFERENTES

Revista Colombiana de Química, 2008
Para evaluar y comparar algunas propiedades de los ácidos húmicos (AH) y fúlvicos (AF) como el grado de condensación y polimerización, el contenido total de carbono, hidrógeno y nitrógeno, y sus constantes
Ingris Zamboni, María Inés Ballesteros, Adriana Zamudio   +2 more
doaj  

The Microbial Functional Communities of Mollisol and Saline–Sodic Paddy Soils at Rice Heading and Harvest Stages in Northeast China

Agriculture
Rice is a primary food source for nearly half of the global population. In Northeast China, paddy soils are mainly classified into two distinct types: fertile mollisol and nutrient-deficient saline–sodic soil.
Jianfeng Zhang, Yuxin Yan, Dongxue Jiang, Shaoqi Huangfu, Hongyuan Ma, Lei Tian, Lihua Huang   +6 more
doaj   +1 more source

Soil chemical properties effect on phosphorus fractions and maximum adsorption capacity in Brazilian tropical soils

Soil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.
Abstract Phosphorus (P) availability in tropical soils is strongly limited by high adsorption capacity, primarily driven by mineralogical and chemical characteristics. This study aimed to evaluate the influence of soil properties on P sorption kinetics, maximum phosphorus adsorption capacity (MPAC), and P fraction distribution across 17 soil samples ...
Lucas Jónatan Rodrigues da Silva, Ana Paula Rodrigues da Silva, Adrielli Cristina Perez da Silva, João Arthur Antonangelo, João Andrade Bonetti, Dirceu Maximino Fernandes, Gustavo Rocha de Castro, Leonardo Theodoro Büll   +7 more
wiley   +1 more source

Rhizosphere Soil Bacterial Communities of Continuous Cropping-Tolerant and Sensitive Soybean Genotypes Respond Differently to Long-Term Continuous Cropping in Mollisols

Frontiers in Microbiology, 2021
The continuous planting of soybeans leads to soil acidification, aggravation of soil-borne diseases, reduction in soil enzyme activity, and accumulation of toxins in the soil.
Ming Yuan, Taobing Yu, Taobing Yu, Qihan Shi, Qihan Shi, Dongwei Han, Kanchao Yu, Lianxia Wang, Shurong Wang, Hao Xiang, Ronghui Wen, Hai Nian, Hai Nian, Tengxiang Lian, Tengxiang Lian   +14 more
doaj   +1 more source

Shoot and Root Traits Contribute to Drought Resistance in Recombinant Inbred Lines of MD 23–24 × SEA 5 of Common Bean [PDF]

, 2017
Drought is the major abiotic stress factor limiting yield of common bean (Phaseolus vulgaris L.) in smallholder systems in Latin America and eastern and southern Africa; where it is a main source of protein in the daily diet.
Bodo Raatz, Cesar Cajiao, Federico Velasquez, Idupulapati M. Rao, Jose Polania, Mariela Rivera, Miguel Grajales, Stephen E. Beebe   +7 more
core   +1 more source

Microtopography controls organic and inorganic carbon stocks in Vertisols: Insights from a climosequence on the Texas coastal plain

Soil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.
Abstract Complex interactions between ecological and environmental factors govern soil organic carbon (SOC) and soil inorganic carbon (SIC) stocks across landscapes. In gilgai‐bearing Vertisols, submeter differences in water availability result in micro‐spatial variability in soil properties.
Sarah J. Kogler, Lee C. Nordt
wiley   +1 more source

Temporal variability of soil health indicators under annual and perennial continuous living cover: Effects of annual weather and management

Soil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.
Abstract Soil health indicators (SHIs) are used to detect changes in soil conditions in response to management. However, management effects must be disentangled from other factors influencing SHI variability. Specifically, how annual weather affects SHI remains poorly understood. To address this gap, we analyzed soil annually for 5 years at 64 sampling
Jacob Kundert, Jacob Jungers, Joshua Gamble, Galen Bergquist, Jessica Gutknecht   +4 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