Abstract
Tropical Agricultural Research and Extension is a peer-reviewed international scientific journal covering a wide range of subject areas in tropical and subtropical agriculture published quarterly by the Faculty of Agriculture, University of Ruhuna, Sri Lanka. The journal is also available on the Faculty of Agriculture, University of Ruhuna website https://www.agri.ruh.ac.lk/tare/index.htm .
Highlights
Agriculture is the back bone of Pakistan’s economy, contributing 21% share in GDP and employing 43% of the total labor force (Govt of Pakistan 2011)
Studies show that the annual crop losses in Pakistan due to weeds range from 17-25%, 20-63%, 10-35% and 13-31% in wheat, rice, sugarcane and cotton crops, respectively (Abbas 2006)
Pakistan is comprised of four provinces namely Punjab, Sindh, Baluchistan and NWFP
Summary
Agriculture is the back bone of Pakistan’s economy, contributing 21% share in GDP and employing 43% of the total labor force (Govt of Pakistan 2011). Cotton, Sugarcane and Rice are the major field crops sown in Pakistan. Yield of these crops is very low as compared to other countries For instance yield of wheat in India is about 8t/ha while in Pakistan it is 3-4t/ha. The yields of Sugarcane in Pakistan is 4045t/ha while India and Egypt produce 66t/ha and 110 t/ha, respectively (FAO 2009). One of the most important factors responsible for low yield in Pakistan is the loss caused by weeds. Annual losses due to weeds on farmlands are far greater than realized. Studies show that the annual crop losses in Pakistan due to weeds range from 17-25%, 20-63%, 10-35% and 13-31% in wheat, rice, sugarcane and cotton crops, respectively (Abbas 2006). If the weeds are allowed to grow unchecked with no control measures the outcome would be cataclysmic (Pacanoski 2007)
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