In calcareous soils, phosphorus (P) retention and immobilization take place due to precipitation and adsorption. Since soil pH is considered a major soil variable affecting the P sorption, an acidic P fertilizer could result in low P adsorption compared to alkaline one. Therefore, P adsorption from DAP and phosphoric acid (PA) required to produce desired soil solution P concentration was estima...

An investigation was carried out to study the AM fungal association in Sida cardifolia from different parts of Karnataka. AM colonization in the roots, spore load and Phosphatase activity in the root zone soil collected from different parts of Karnataka were determined. AM root colonization was more in the roots of Sida cardifolia collected from Kolar and least in case of root samples collected...

BC of soils (van Breemen et al., 1983). Soil acidification may be defined as the loss of ANC and does not necesIn Slovakia H input into soils is increasing because alkaline dust sarily result in the decrease of the soil equilibrium pH emissions have been reduced since 1990. Our objectives were to exam(van Breemen et al., 1983). Süsser (1987) described ine (i) the metal release in H buffer react...

Adoption of crop residue amendments has been increasingly recommended as an effective management practice for mitigating greenhouse gas emissions while enhancing soil fertility, thereby increasing production. However, the effect biochar and straw on nitrous oxide (N2O) methane (CH4) in soils differing pH remains poorly understood. Three treatments (control (i.e., no amendment), maize straw, der...

The sorption of the allelochemical scopoletin (7-hydroxy-6-methoxycoumarin) was studied in eight agricultural soils and different model sorbents. We also determined its degradation selected related results to expression phytotoxicity soil towards two plant species, Eruca vesicaria Hordeum vulgaris. Scopoletin sorbed a greater extent acid than alkaline soils. Correlations with properties indicat...

Alkaline extractions from humic material are used to risk assessment in soils. However, there questions about the type of extraction most suitable for this evaluation. Thus, work evaluated different soil search realistic environmental conditions (simulated rain). The parameters obtained revealed significant differences between levels and structural characteristics organic matter, depending on e...

BACKGROUND Prunus triloba Lindl. is a naturally salt-alkaline-tolerant plant with several unique characteristics, and it can be used as the rootstock of Chinese plum (Prunus salicina Lindl.) in saline-alkaline soils. To comprehensively investigate the alkaline acclimation mechanisms in P. triloba, a series of analyses were conducted under alkaline stress, including analyses of the kinetics of m...

A four-step novel sequential extraction procedure (SEP) was developed to assess Hg fractionation and mobility in three highly contaminated soils from chlor-alkali plants (CAPs). The SEP was validated using a certified reference material (CRM) and pure Hg compounds. Total, volatile, and methyl Hg concentrations were also determined using single extractions. Mercury was separated into four fracti...