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The effects of surface management practices in fallow land and of legume cropping on soil water storage, soil temperature, soil physical properties, weed population and soil fertility were studied for three successive years (1991–1993) in rainfed vertisols of peninsular India. The treatments...
Soil penetration resistance (cone index) varies with water content. The field variation of water content could mask treatment differences. The correction of cone index data to a single water content would help prevent this. We used equations from TableCurve ™ software and from the literature to...
In years of low rainfall, corn ( Zea mays L.) grain production in parts of Southern Illinois, USA is drastically reduced. The naturally occurring claypans and fragipans in the soils of the region and compaction from farming practices have deleterious effects on crop production. An experiment was...
The long-term effects of cropping systems and management practices on soil properties provide essential information for assessing sustainability and environmental impact. Field experiments were undertaken in southern Spain to evaluate the long-term effects of tillage, crop rotation and nitrogen...
Studies of earthworm species and their activity, expressed as channels, on cultivated loamy (Humic Cryaquept) and clayey soils (Typic Endoaqualf and Typic Cryaquept) were conducted in southern and central Norway before conversion from conventional to organic cropping systems. At all the three...
Very little research has been done to investigate soil loosening as a function of the geometry of the tillage tool and of the original soil properties and moisture content. A field experiment was conducted to observe the effects of the geometric parameters of flat tillage tools on their draft,...
Factors affecting the compaction susceptibility of South African forestry soils were assessed. Two traditional measures of compaction susceptibility were used: maximum bulk density ( ρ mbd ) determined by the standard Proctor test, defined compactibility, and the compression index using a simple...
Results of wear investigations on steel samples in the laboratory and on ridger shares in field conditions are presented. Wear was determined by measurements of the change in length and thickness of shares, and from the weight of samples. Relative resistance against abrasive wear was determined...
The effects of deep tillage on soil properties and crop yields under rainfed agriculture were evaluated on a shallow calcareous sandy loam (Ustochrept) in Bhilwara region in Western India. Disc and chisel ploughing (deep tillage, 25 to 40 cm) were compared with conventional, minimum and zero...
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