Title: Pre-plant and Placement Method for Efficient Use of P-Fertilizer in Wheat Crop
Abstract:Poor use efficiency of phosphorus is one of the major causes to lower the yield of wheat crop. Time and method of P 2 O 5 application influence the degree of responsiveness. Therefore, an investigatio...Poor use efficiency of phosphorus is one of the major causes to lower the yield of wheat crop. Time and method of P 2 O 5 application influence the degree of responsiveness. Therefore, an investigation was carried out under field conditions to compare three times (pre-plant, at 1 st irrigation and at 2 nd irrigation) and two methods (broad cast and placement) of P 2 O 5 applications for wheat grown in three cropping zones (central, cotton and thal zone) of Punjab province of Pakistan. The division of zones is based on agro-climatic conditions and cropping pattern followed by the farmers. The hypothesis was made to suggest best time and method of P 2 O 5 application in order to enhance its use efficiency. The experiments were chalked out by applying recommended dose of N, P 2 O 5 and K 2 O @160, 114 and 62 Kg ha -1 in all treatments except control throughout study. The sources of N, P 2 O 5 & K 2 O were Urea, Single Super Phosphate (SSP) and Sulphtate of Potash (SOP). Three, nine and one field trials were conducted during 2008-09 at framer's fields in central, cotton and thal cropping zones of the Punjab province, respectively. It was found that time and method of P 2 O 5 application significantly (P<0.05) affected the wheat grain yield in three cropping zones under study. Finally, our study suggested that application of P 2 O 5 @ 114 Kgha -1 at the time of pre-plant with placement method produced the highest yield in central, cotton and thal zone as compared to all other times and methods of P-fertilizer application. ( Imran Ali, Shahid Mahmood Mian, Rehmat Ullah. Pre-plant and Placement Method for Efficient Use of P-Read More
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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