Results 241 to 250 of about 13,024,482 (276)
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Soil Quality: An Approach to Physical State Assessment
Journal of Sustainable Agriculture, 1997ABSTRACT A method is given to dynamically evaluate the physical aspects of Parr's SOIL QUALITY. Measurements of two main variables are found to be essential: OHI (Optimal Hydric Interval), and RS (Relative Stability of the soil aggregates). The OHI is a range of the hydric content at which available water is easily used by crops, soil solid mass is ...
Jorge A. de Orellana +2 more
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Characterization of soil quality: Physical and chemical criteria
American Journal of Alternative Agriculture, 1992AbstractThe impact of soil degradation on human welfare and the global environment presents a major challenge. A significant decline in soil quality has occurred worldwide through adverse changes in its physical, chemical and biological attributes and contamination by inorganic and organic chemicals. There is a need to develop criteria to evaluate soil
M.A. Arshad, G.M. Coen
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PHYSICAL QUALITY EVALUATION OF SOME SOILS FROM DOLJCOUNTY
"Annals of the University of Craiova - Agriculture Montanology Cadastre Series ", 2023The quantity and quality of yield is determined by the soil quality. The agriculture is one of the main human activities that affect soil quality. In Dolj, the agriculture occupies an important place in the economy of the County. The main soils found in DoljCounty were Chernozems and Luvisols.
Alexandrina MANEA +5 more
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Comparing Physical Quality of Forest and Pasture Soils in a Sicilian Watershed
Soil Science Society of America Journal, 2011Forest and pasture soils should have differing properties due, for example, to differing root characteristics or livestock trampling rates, but contradictory results are reported in the literature. The surface soil physical and hydraulic properties of five forest and pasture sites were determined in a Sicilian watershed.
AGNESE, Carmelo +3 more
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Slash and burn effect on soil quality of an Alfisol: Soil physical properties
Soil and Tillage Research, 2009Abstract Slash and burn method of land clearing, an integral part of the traditional farming system, is widely practiced by over 90% of farmers in Southwestern Nigeria. It is often used as means of land clearing to pave way to minimum or zero tillage.
Kayode S. Are +3 more
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Chapter 2 Physical attributes of soil quality
1997Publisher Summary Crop production and ecosystem health are affected strongly by soil physical quality, particularly in the root zone. The soil must provide a foundation that is sufficiently strong to provide adequate plant support and stable soil structure but not so strong as to inhibit root proliferation and faunal activity, such as burrowing ...
G.C. Topp +4 more
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Using soil organic matter fractions as indicators of soil physical quality
Soil Use and Management, 2018Abstract The objective of this study was to evaluate the use of chemical and physical fractions of soil organic matter ( SOM ), rather than SOM per se , as indicators of soil physical quality ...
M. Pulido‐Moncada +7 more
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The residual effect of soil loss on the chemical and physical quality of three soils
Geoderma, 1991Abstract Soil particle size distribution, bulk density, water desorption, water-stable aggregates greater than 0.25 mm, 137 Cs content, organic carbon (OC), total nitrogen (N t ), sodium-bicarbonate-soluble phosphorus (P a ), exchangeable cations, and cation exchange capacity, were measured in three contrasting soil that had lost soil by erosion and
G.-Q. Geng, D.R. Coote
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EVALUATION OF LABORATORY-MEASURED SOIL PROPERTIES AS INDICATORS OF SOIL PHYSICAL QUALITY
Soil Science, 2007Routine soil analyses provide an approach for assessment and monitoring of soil quality and targeted implementation of management practices, but suitable indicators are mostly undefined. We used three long-term experiments on several soil types where maize (Zea mays L.) was grown under different tillage (no till and plow till), rotation (continuous ...
Bianca N. Moebius +5 more
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Soil and Tillage Research, 2007
Abstract Tillage experiments were carried out in order to study the effect of water content on the aggregate size distribution produced by tillage, and to investigate the relationship between the soil structures produced by tillage and Dexter's index of soil physical quality, S . Tillage with a mouldboard plough was done on four different soils over
T KELLER, J ARVIDSSON, A DEXTER
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Abstract Tillage experiments were carried out in order to study the effect of water content on the aggregate size distribution produced by tillage, and to investigate the relationship between the soil structures produced by tillage and Dexter's index of soil physical quality, S . Tillage with a mouldboard plough was done on four different soils over
T KELLER, J ARVIDSSON, A DEXTER
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