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Asian Journal of Plant Sciences
Year: 2002  |  Volume: 1  |  Issue: 4  |  Page No.: 361 - 363

Impact of Nitrogen Fertilizer, Their Levels, Application Time and Weeding Methods on Yield and Yield Components of Wheat

Mujtaba Masood, Muhammad Tariq Jan and Imran Haider Shamsi    

Abstract: Field experiment was conducted to study the impact of nitrogen fertilizer (80, 100 and 120 kg N ha -1 to wheat (Triticum aestivum L.) applied at sowing, early and boot stage and weed control methods (no weeding, hand weeding, chemical applied once and twice). A basal dose of 40 kg N ha -1 was given to all treatments at sowing. Grain weight showed no response to fertilizer, Spike population and number of grains per spike had a positive linear relationship with fertilizer levels. Weed control methods significantly influenced grain weight and number of grains spike -1. Highest grain yield was achieved from single application of Isoproturon and fertilizer applied at the rate of 120 kg N ha -1 in three equal split doses.

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