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Most of the experimental studies on tillage erosion by mouldboard tillage have hitherto focused on the characterisation of the erosivity of a given tillage pass for specific operating conditions. The effect of variations in tillage speed and depth on soil translocation and the associated tillage...
Crop rotation using cover crops with vigorous root systems may be a tool to manage soils with some degree of compaction. Root and shoot growth as well as nutrient accumulation by summer species suitable for crop rotation in tropical areas were studied at different subsoil compaction levels....
Dryland winter wheat ( Triticum aestivum L.) and grain sorghum ( Sorghum bicolor (L.) Moench) are often grown on the semiarid North American Great Plains using the wheat–sorghum–fallow (WSF) crop rotation. When used with WSF, no-tillage (NT) and stubblemulch tillage (SM) residue management...
The western part of the Argentine Pampas is a subhumid and semiarid region consisting of extensive plain with deep sandy and sandy-loam soils. The agricultural system includes pastures in rotation with annual grain crops and grazed crops or continuous annual row cropping. The objective of this...
Wheel induced soil compaction is an ongoing concern in mechanized agriculture. This experimental study was performed with the aim to evaluate whether soil compaction is related to stresses induced by towed wheels. Soil bin studies were conducted and soil compaction variables were measured under...
Harrowing in cereals is usually carried out to control weeds. In this study, the effects of loosening and aerating the soil with a spring tine harrow on the mineral N content of the soil (NO 3 − and NH 4 + ) and the N content of the crop were investigated. The experiment was conducted in...
The state of compactness of the arable soil layer changes during the growing season as a result of tillage and traction. The aim of this study was to assess and predict some soil mechanical and physical properties governing machine performance and crop response. The following mechanical...
Several management systems can be used to improve the soil physical conditions. The study of aggregates is one way to quantify whether or not the management is improving the soil natural characteristics and agricultural capacity. The effects of two tillage systems and three crop rotations on the...
Cone resistance is an empirical measure of soil strength that can rapidly identify areas where soil depth or soil compaction may be limiting yields. However, large numbers of measurements would be required to describe and assess spatial variability, quite likely at prohibitive costs. It then...
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