Abstract
Evaluation of Conservation Tillage System Performance for Rainfed Wheat Production in upland of Pakistan
Highlights
Pothwar is the largest rainfed tract of northern Punjab, Pakistan, where fallow-wheat rotation is the most common practice on about 80% of the area (Razzaq et al, 2002)
The gross margin was not equivalent to gross profit because it did not include fixed or overhead costs such as depreciation, interest payments or permanent labor, all of which centre at Chakwal (Figure 1) and the data for statistically analysis was collected for various parameters was subjected to analysis of variance (ANOVA) under split-plot design and means was compared at 5% level of significance by Least Significance Difference (LSD) test (Steel et al, 1997)
Seedling emergence Seedling emergence was significantly affected by different tillage systems with and without retention of crop residues
Summary
Pothwar is the largest rainfed tract of northern Punjab, Pakistan, where fallow-wheat rotation is the most common practice on about 80% of the area (Razzaq et al, 2002). Low crop productivity is the common feature of the agriculture of area; there is great potential of increasing crop productivityif efficient use of resourcesand reduced input costs are ensured. Conservation tillage system (minimum tillage, direct and low temperature in winter with 70% of the rain drilling, zero tillage etc) is being advocated worldwide received during monsoon in the form of heavy showfor sustainable crop production which involves min- ers. The potential advantage of conservation Detail of treatments tillage practices over conventional practices is due to The experiment was initiated on an area of 6000 m2 leaving residue on soil surface that reduces erosion with treatments arranged in a split plot design havby providing barrier against rain-splash and runoff, ing four replications. Crop residue increases soil mum Tillage (MT), Reduced Tillage (RT) and Zero organic carbon that improves soil aggregation (Ma- Tillage (ZT).
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