Results 61 to 70 of about 1,119 (161)

Mapping soils using the fuzzy approach and regression-kriging case study from the Považský Inovec Mountains, Slovakia

Soil and Water Research, 2007
The paper introduces a method of digital mapping of spatial distribution of soil typological units. It implements fuzzy k-means to classify the soil profile data (study area from the Považský Inovec Mountains, Slovakia) and regression-kriging with the ...
Juraj Balkovič, Gabriela Čemanová, Jozef Kollár, Miroslav Kromka, Katarína Harnová   +4 more
doaj   +1 more source

Grain quality of winter wheat in a cropping system without synthetic plant protection products and with reduced nitrogen fertilization

Agronomy Journal, Volume 118, Issue 1, January/February 2026.
Abstract Synthetic plant protection products (SPs) can be important for high yields and qualities but also face criticism. A novel mineral‐ecological cropping system (MECS) without SPs but with mineral fertilization aims to maintain high yields and quality while reducing pesticide use. This study investigated winter wheat (Triticum aestivum L.) quality
Markus Dier, Wilfried Hermann, Jürgen Schwarz, Monika Wimmer, Herbert Götz, Christian Zörb   +5 more
wiley   +1 more source

Effects of a Perennial Drought on Nitrate Fate in an Agriculturally Dominated Mesoscale Catchment as Constrained by Stable Isotope Investigations

Hydrological Processes, Volume 40, Issue 1, January 2026.
Our study shows that nitrate concentrations in both groundwater and surface water decreased during a 3‐year drought at the mesoscale river basin level, especially in agricultural regions with anthropogenic nitrate sources. This decline is due to temporary retention and dilution in the soil zone rather than denitrification, as suggested by the stable ...
Christin Mueller, Ronald Krieg, Ralf Merz, Kay Knöller   +3 more
wiley   +1 more source

Неутрализационното равновесие в моделирани Канелени горски почви в Южна България

Почвознание, агрохимия и екология, 2010
After the failure of "lime potential equation” - а simulation model of soil acidification, only the empirical way was available for carrying out dependence between soil pH and the exchangeable ions.
МАРИЯ ТАНЕВА, РОСИЦА ТОНЧЕВА, НАТАЛИЯ ЖИВКОВА   +2 more
doaj  

Soil variability effect on the indices of potentially toxic elements pollution under the coffee (Coffea arabica)-enset (Ensete ventricosum) agroforestry systems of Southern Ethiopia

Discover Applied Sciences
Potentially toxic elements (PTEs) in agricultural soils pose serious environmental and health risks, necessitating accurate hazard assessments. This study investigated the extent, severity, and potential sources of PTEs in Cambisols, Luvisols, and ...
Abdelaali Ait Saghir, Ali Boularbah, Fisseha Asmelash, Fassil Kebede   +3 more
doaj   +1 more source

Distribution of soil fractions of zinc and its uptake by potatoes, maize, wheat and barley after soil amendment by sludge and inorganic Zn salt

Plant, Soil and Environment, 2003
Zinc distribution in the main soil fractions and zinc accumulation in potatoes, maize, wheat and barley after different soil treatments (basic sludge rate, triple sludge rate, NPK, NPK + inorganic Zn) were investigated in a field experiment conducted at ...
P. Dvořák, P. Tlustoš, J. Száková, J. Černý, J. Balík   +4 more
doaj   +1 more source

NITROGEN FORMS IN THREE KENYAN SOILS ANDOSOLS, LUVISOLS AND FERRALSOLS

International Journal for Innovation Education and Research, 2016
The nitrogen cycle in soil is an integral part of the overall cycle of N in nature. The primary source of N is the atmosphere where the strongly bonded gas molecule N is predominately gas (78.08%). Total N content in soils ranges from 0.02% in the subsoil and more than 2.5% in peats; ploughed layers of most cultivated soils contain between 0.06 and 0.5%
George Njomo Karuku, Benson O Mochoge
openaire   +2 more sources

Проучване върху биогенната акумулация на тежки метали в повърхностните слоеве на Luvisols и Cambisols от мрежата за мониторинг на горските екосистеми

Почвознание, агрохимия и екология, 2012
    Quantitative values for the extent of accumulation of heavy metals in surface soil layers of Luvisols and Cambisols of forest ecosystems were calculated. The average coefficients for Luvisols without exchange acidity were аs follows: Мn — 0.97,
ЛЮДМИЛА МАЛИНОВА
doaj  

Morfologia e classificação de luvissolos e planossolos desenvolvidos de rochas metamórficas no semiárido do nordeste brasileiro Morphology and classification of luvisols and planosols developed on metamorphic rocks in semiarid northeastern Brazil

Revista Brasileira de Ciência do Solo, 2009
A região semiárida do Nordeste estende-se por aproximadamente 750 mil km², e em suas áreas Pré-Cambrianas predominam solos rasos e pouco desenvolvidos. Grande parte desses solos é classificada, de acordo com o Sistema Brasileiro de Classificação de Solos,
Lindomário Barros de Oliveira, Maurício Paulo Ferreira Fontes, Mateus Rosas Ribeiro, João Carlos Ker   +3 more
doaj   +1 more source

Uso de barreras cortavientos en un luvisol cultivado de olivos

, 2020
RESUMEN: Uso de redes cortavientos para disminuir la erosión y el transporte de sedimentos en un área concreta semiárida. Un hilo de 13x30 cm-2 y con una red de malla del 39 % frente al viento aumentaron la reducción promedio de erosión hasta un 72% a una altura de 0.4 m en olivares labrados recientemente.
openaire   +2 more sources