Results 61 to 70 of about 4,675 (205)

Balances de elementos en un agroecosistema de caña de azúcar: II. Balance de Fósforo [PDF]

, 2006
The paper considers the application of the studies of nutrient cycling on the determination of phosphorus requirements in sugarcane plantations. The work was performed in a 4.5 ha experimental plot located in the valley of Yaracuy river in central ...
López-Hernández, D., Medina, E., Sequera, D.   +2 more
core  

Repeated use of anion‐exchange membranes in soils alters the membrane surface and phosphate‐P exchange capacity

Soil Science Society of America Journal, Volume 90, Issue 1, January/February 2026.
Abstract Anion exchange membranes (AEMs) are widely used to assess soil phosphorus (P) cycling. However, the routine reuse of AEM for soil extractions may impact the surface properties of AEM and thus phosphate‐P exchange. We evaluated changes in AEM surface morphology, chemical composition, and phosphate‐P exchange capacity after varying degrees of ...
Chongyang Li, Finnleigh S. Woodings, Andrew J. Margenot   +2 more
wiley   +1 more source

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

High‐Resolution Soil Total Phosphorus Mapping for the Conterminous USA Using Machine Learning

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 1, January 2026.
Abstract Accurate estimates of soil total phosphorus (TP) concentrations are essential for sustainable nutrient management, food security, and water quality protection. This study predicts and maps the spatial distribution of TP in the top 5 cm and C horizon of soils across the conterminous USA (CONUS) using data from the Geochemical and Mineralogical ...
Ikechukwu S. Onwuka, Daniel R. Obenour, Natalie G. Nelson, Owen W. Duckworth   +3 more
wiley   +1 more source

Extraction Kinetics and Molecular Size Fractionation of Humic Substances From Two Brazilian Soils

Journal of the Brazilian Chemical Society, 1999
In the present study, the extraction behaviour of humic substances (HS) from an Oxisol and a Mollisol from South Brazil, by using 0.1 and 0.5 mol L-1 NaOH and 0.15 mol L-1 neutral pyrophosphate solutions, respectively, was systematically studied.
Dick Deborah Pinheiro, Burba Peter
doaj  

Le pingo d’Aishihik, sud-ouest du Yukon : caractères morphogénétiques et cadre temporel [PDF]

, 1985
Les nouvelles observations sur la structure externe et interne de la butte d'Aishihik confirment qu'on se trouve en présence d'un pingo, classiquement interprété comme étant de système fermé, alors qu'il se situe à la limite sud du pergélisol discontinu.
Dewez, Véronique, Geurts, Marie-Anne
core   +1 more source

The E4/E6 Absorbance Ratio, Humification Index in Soil and Cereals Drought Tolerance After 26 Years of Fertilisation

Applied and Environmental Soil Science, Volume 2026, Issue 1, 2026.
Applying organic fertilisers improves soil health and plant growth by improving the soil organic matter, soil structure, nutrient uptake and water‐holding capacity. Small‐plot stationary field experiments on four different soils in Central Europe evaluate the long‐term effect of organic amendments and/or mineral fertilisers on the soil organic matter ...
Ondřej Sedlář, Jiří Balík, Jindřich Černý, Martin Kulhánek, Pavel Suran, Simona Procházková, Vasanthavigar M.   +6 more
wiley   +1 more source

Overview of Mollisols in the world: Distribution, land use and management [PDF]

, 2012
Mollisols a.k.a., Black Soils or Prairie Soils make up about 916 million ha, which is 7% of the world’s ice-free land surface. Their distribution strongly correlates with native prairie ecosystems, but is not limited to them.
Burras, C., Burras, C. Lee, Cruse, Richard, Duran, Artigas, Huffman, Ted, Kravchenko, Yuri, Liu, Xiaobing, Morras, Hector, Studdert, Guillermo, Yuan, Xiaohui, Zhang, Xingyi   +10 more
core   +3 more sources

Biochar: A Sustainable Solution for Mitigating Greenhouse Gas Emissions and Enhancing Soil Productivity—A Review

Scientifica, Volume 2026, Issue 1, 2026.
Greenhouse gases (GHGs) resulting from human activities significantly impact crop production and agricultural sustainability, necessitating innovative solutions to mitigate their effects. One promising approach is employing biochar for GHG mitigation, providing a potential means to offset emissions and enhance crop productivity sustainably.
Aruna Olasekan Adekiya, Ayibanoa Lekoo Ibaba, Timothy Oyebamiji Ogunbode, Olajire Damilola Adedokun, Nidhi Chaudhary   +4 more
wiley   +1 more source

Soil respiration induces co-emission of greenhouse gases and methylated selenium from cold-region Mollisols: Significance for selenium deficiency

Environment International
Mollisols rich in natural organic matter are a significant sink of carbon (C) and selenium (Se). Climate warming and agricultural expansion to the cold Mollisol regions may enhance soil respiration and biogeochemical cycles, posing a growing risk of soil
Kunfu Pi, Philippe Van Cappellen, Hongyan Li, Yiqun Gan, Lei Tong, Xinlin Zhong, Yanxin Wang   +6 more
doaj   +1 more source