Tillage is an important procedure for modifying the soil environment to enhance crop growth and conserve soil and water resources. Process-based models of crop production are widely used in decision support, but few explicitly simulate tillage. The Cropping Systems Model (CSM) was modified to simulate tillage and related field operations for single seasons or multiple years. This paper provides...

This paper presents the results of research on choice type and modes operation experimental brush-slatted working body for collecting maturated part cotton crop. The calculation forces acting remains crop at separation from stalk is presented. schemes combination various types bodies increased speeds machine are determined. In conclusion, calculating economic efficiency harvesting residues with

Crop residues are among the main inputs that allow organic carbon (C) and nutrients to be maintained in agricultural soil. It is an important management strategy can improve soil fertility enhance productivity. This work aims evaluate extent of changes may occur heterotrophic microbial communities involved matter decomposition C nitrogen (N) mineralization after addition crop residues. Soil mic...

Returning crop residue may result in nutrient reduction in soil in the first few years. A two-year field experiment was conducted to assess whether this negative effect is alleviated by improved crop residue management (CRM). Nine treatments (3 CRM and 3 N fertilizer rates) were used. The CRM treatments were (1) R0: 100 % of the N using mineral fertilizer with no crop residues return; (2) R: cr...

We assess farmers' incentives and the conditioning factors for adoption of agricultural technologies under climate risk and evaluate its impact on food security in Niger. Results show that while the use of modern inputs and organic fertilizers improves productivity, results are unclear for crop residues. Results also show that factors driving modern input use are different than those of crop re...

wheat residues management and modification in tillage time are among suggested practices in weed control. to evaluate the effects of wheat residues and tillage time on weed dry matter and leaf area, corn dry matter and corn grain yield, a study was conducted at darab agriculture and natural resource college, shiraz university during growing season of 2008-2009. this experiment was conducted in ...