Effect Of Time And Methods Of Phosphorus Application On Phosphorus Use Efficiency Under Prevailing Temperature And Its Impact On Plant Growth And Yield Traits Of Wheat

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Muhammad Arshad , Shakeel Ahmad Anwar , Muhammad Imran , Muhammad Rashid Farooq , Abdul Rehman Akber , Muhammad Aslam , Muhammad Iqbal Shahid

Abstract

A field experiment was conducted to study the effect of different time and methods of application of phosphatic fertilizer to wheat crop under Arid condition. Experiment was comprised of seven treatments viz: T1:  Boadcasting full recommended dose at seedbed preparation (115 kg ha-1), T2: Boadcasting 1/2 dose at seedbed preparation + 1/2 dose at booting, T3 :  Boadcasting 1/2 dose at seedbed preparation + 1/2 dose at grain filling, T4: Boadcasting 1/3rd dose at seedbed preparation + 1/3rd at booting + 1/3rd at grain filling, T5: Boadcasting 1/2 dose at seedbed preparation + Fergating 1/2 dose at booting,.T6:  Boadcasting 1/2 dose at seedbed preparation + fergating 1/2 dose at grain filling,.T7:  Boadcasting 1/3rd dose at seedbed preparation + fergating 1/3rd at booting + fergating 1/3rd at grain filling. Results showed that although all the treatments tested were differing significantly from the control in all aspects studied but, application of phosphatic fertilizer broadcasted half at the time of seed bed preparation and half dose at booting stage, produced maximum grain per spike (39), number of fertile tillers m-2 (360.67), 1000 grains weight (52g) and grain yield (6622 kg ha-1) as compared to other treatments. Maximum spikelet’s and spike length were recorded in T6 was statistically at par with the T1 and T2. On the basis of these results, it can be concluded that application of phosphatic fertilizer, broadcasted half dose of phosphorus out of total dose (115 kg ha-1) at the time of seed bed preparation and half at the time of booting stage not only increase the plant vigor but also produced better yield under arid condition.

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