Results 51 to 60 of about 14,400 (205)

Effect of Scraping on Humus Content of Heavy Textured Soil Degraded by Excess Waters

Acta Technologica Agriculturae
On low-lying soils with a high clay content and poor water conductivity, excess water regularly appears after almost every rainy winter causing soil degradation, which leads to yield failures and/or losses.
Nagy Pál Máté, Jobbágy Ján, Tuba Géza, Kovács Györgyi, Zsembeli József   +4 more
doaj   +1 more source

Evaluation of heavy metal toxicity in two Colombian agricultural soils using

Temas Agrarios, 2017
This study aimed to determine the toxicity of Cu, Cd, Ni, Pb and Zn in two Colombian agricultural soils, Andisol and Vertisol, by bioassays with Lactuca Sativa and Vibrio fischeri.
Luis E. Cortés, Francisco J. Martin, Margarita M. Sarria   +2 more
doaj   +1 more source

Assessment of micronutrients fractionations and mobility in soils of eastern Uttar Pradesh

The Indian Journal of Agricultural Sciences, 2021
In the present investigation, an attempt has been made to assess the various chemical forms and mobility factor (MF) for zinc (Zn), copper (Cu), iron (Fe) and manganese (Mn) in different soils of eastern Uttar Pradesh.
ABHIK PATRA, SATISH KUMAR SINGH, SURENDRA SINGH JATAV, RAVINDRA KUMAR REKWAR   +3 more
doaj   +1 more source

Examination into the accuracy of exchangeable cation measurement in saline soils [PDF]

, 2006
Despite the increasing prevalence of salinity world-wide, the measurement of exchangeable cation concentrations in saline soils remains problematic. Two soil types (Mollisol and Vertisol) were equilibrated with a range of sodium adsorption ratio (SAR ...
Bigwood, R., Kopittke, P., Menzies, N. W., So, H. B.   +3 more
core   +1 more source

Nutrients, Metals, and Carbon in Soils Irrigated With Treated Versus Untreated Wastewater

Journal of Plant Nutrition and Soil Science, Volume 189, Issue 1, Page 131-142, February 2026.
Transitioning from untreated to treated wastewater irrigation reduced soluble N and P but enhanced Cr, Fe and Ni mobilization in long‐term wastewater‐irrigated Mezquital Valley soils, highlighting soil‐type‐dependent effects. ABSTRACT Background Reuse of wastewater for irrigation can mitigate pressure on water resources and support closing nutrient ...
Benjamin J. Heyde, Kathia Lüneberg, Nicole Hahn, Melanie Braun, Jan Siemens, Christina Siebe   +5 more
wiley   +1 more source

Phosphorus Management on ‘Extensive' Organic Farms with Infertile Soils [PDF]

, 2007
Two case-study farms with negative P balances maintained acceptable productivity without fertilisers, apparently by ‘mining’ ‘available’ P reserves in surface and subsoil.
Cornish, P. S.
core  

Management of Vertisols in sub-Saharan Africa. Proceedings of a conference [PDF]

, 2014
Presents papers and abstracts on the management of vertisols in sub-Saharan Africa and other parts of the world. Overviews the importance, distribution, agroclimatology and properties of vertisols and the Indian Vertisol technology experience.
Haque, I., Jutzi, S.C., McIntire, John M., Stares, J.E.S.   +3 more
core  

Influence of soil type and compaction on maize yield [PDF]

Journal of Agricultural Sciences (Belgrade), 2018
The goal of this paper was to determine the yield of different maize hybrids depending on soil type and compaction. The experiment was carried out in 2016 and 2017 on the territory of the Leskovac municipality, including three different soil types ...
Biberdžić Milan O., Barać Saša R., Lalević Dragana N., Stojiljković Jelena V., Knežević Branislav P., Beković Dragoljub K.   +5 more
doaj  

CATION SELECTIVITY OF VERTISOLS [PDF]

Mesopotamia Journal of Agriculture, 2019
The effect of salinity and SAR on Gapon selectivity coefficient  of two Vertisols , collected from Duhok Governorate in northern Iraq(Summel and Zakho) classified taxonomically as (fine clay-smectitic-calcareous-cracked soils), were studied in a laboratory experiment. Twenty solutions , including five TEC levels (5,10, 20, 50 and 100 mmolc.l-1 and four
openaire   +2 more sources

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