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A study was conducted in three successive seasons during 2004-06 on loam soil at three different sites in tehsil Faisalabad. The objective was to investigate the response of cotton (cv. NIAB-111) to different levels and times of K-application. The treatments comprised three potassium doses (0, 62.5 and 125 kg/ha) and its application on three times (full at sowing, full at first irrigation and ½ at sowing + ½ at first irrigation). The results indicated that potassium doses and application times significantly affected seed cotton yield. On an average, the highest seed cotton yield (2418.55 kg/ha) was obtained when crop was fertilized @ 125 kg K (full at sowing) closely followed by 62.5 kg (full at sowing) (2409.77 kg/ha). However, both these doses were statistically at par. The lowest yield was noted in control (2192.98 kg/ha) where no potassium fertilizer was applied. Hence application of K at economical dose of 62.5 kg per hectare is recommended in tehsil Faisalabad. [ABSTRACT FROM AUTHOR]

A study was carried out at Adaptive Research Farm, Sargodha, Punjab, Pakistan during 2006-07. The objective was to determine the most important factors affecting wheat production in mixed cropping zone of Punjab province. A sample of 200 wheat growing respondents was randomly selected from five villages of four district. i.e. Sargodha, Jhang, Faisalabad and Toba Tek Singh. Cobb Douglas type production function was employed to assess the effect of sowing time, seed rate, education, fertilizers application, irrigation, etc. on wheat yield. Sowing time, rotavator use, education, seed rate, weedicide cost and use of nitrogenous fertilizer were found as contributing factors towards higher wheat yield on sampled respondents farms with co-efficient values of -0.083, 0.07, 0.03, 0.418, 0.081 and 0.092, respectively. So, there is a need to educate the farmers on priority basis for adopting recommended practices. The extension staff can play a pivotal role in this regard. [ABSTRACT FROM AUTHOR]