Improving the sustainability of wheat production in irrigated areas of Punjab, Pakistan through conservation tillage technology
2008
Mann, R.A. (National Agricultural Research Centre, Islamabad (Pakistan)) | Ramzan, M. (National Agricultural Research Centre, Islamabad (Pakistan)) | Munir, A. (National Agricultural Research Centre, Islamabad (Pakistan))
Wheat and rice are the major food staples around the globe including Pakistan. The challenge of increasing food production in the next 20 years to match population growth is daunting and warrants improvement in the quality of natural resources for growing more food from marginal and degraded lands. Cost of cultivation must be reduced and at the same time, efficiency of resources like irrigation water, fuel, fertilizers must be improved to make the crop production system more viable and eco-friendly. Resource Conserving Technology (RCT) must figure highly in this equation since it plays a crucial role in achieving the above goals. The RCTs include laser land leveling, zero-tillage, bed furrow irrigation method and crop residue management. These technologies were evaluated in irrigated areas of Punjab province where rice follows wheat. Water use efficiency was increased by 20% in laser leveled fields. Zero-tillage technology resulted in a significant saving of irrigation water (22%), fuel (78%), cultivation (88%) and herbicide use (33%) compared to conventional, thus increasing yields and farmer's profits. Soil properties and microbial population including bacteria, fungi and actinomyces improved in the zero-till fields. Planting of wheat on raised beds is making headway in low-lying and poorly drained areas. Thus, resource conservation tillage technology provides a tool for making progress towards improving and sustaining wheat production, helping with food security and poverty alleviation in Pakistan in the next few decades.
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