DefinePK

Abstract

Wheat (Triticum aestivum L.) is the main staple food of Pakistan. Our soils are phosphorus deficit. To study the effect of different levels of phosphorus on growth, yield and quality of wheat use efficiency is crucial for sustainable wheat production. Phosphorus (P) efficiency includes both P acquisition efficiency (PAE) and internal P utilization efficiency (PUE). Phosphorus (P) use efficiency PUE, particularly on alkaline soil.  One wheat variety was used with RCBD design with three replications wheat field experiments was carried out at Riverine belt farmer field  Dera Ismail Khan. Treatments consisted of the combination of (i) wheat crop and three rates of P fertilization (P25) (P50), (P75) kg/ha–1) (ii) broadcast method of P @ three rates of phosphorus @25, 50, 75 methods were used for P application Broadcast and Band placement drill. Whereas wheat plots treatments with band placement drill application showed that increase the phosphorus uptake efficiency, variations are attributed to variations in phosphorus use. This study was design to investigate for P use efficiency in wheat crop under irrigated condition. The findings showed that The data regarding plant height showed that under BPD Treatments, drilling application recorded increase in plant height T6  BPD,P @75 kg/ha-1 (101.2) cm. showed the highest  plant height, followed T1 BPD @25 kg/ha-1 Broadcast, T2 FP Broadcast application  while the least value was recorded in Treatment T3 FP,@75 kg/ha-1 (90) cm. placement illustrated the greater 1000 grain weight was recorded in T6 (45.41) in  the drilling method of application while the minimum 1000 grain weight was recorded in T2 (38.22) g under broadcast application of P. P application at the rate of 50 kg P ha-1. The greater wheat grain yield, 5.2 ton ha 1 was attained with the use of Drill method of  Phosphorus @75 kg/ha-1.while the lowest value was recorded in T1 FP@ 25 kg/ha1 (4.0).ton ha-1The average P concentration in the wheat grains were higher under high P supply in T6 BDP @75 Kg/ha-1(High P: 0.07 mg/kg-1 while the least concentration was recorded in Treatment FP, T1(Low P: 0.02 mg/kg-1).From these results it was concluded that phosphorus level of 75 kg ha-1 is best for maximizing productivity and quality of wheat crop under the climatic condition under irrigated  Comprehensive assessment of the relationship between soil P, yield and PUE, 75kg/ha-1 application with Band placement drill performed best and  DAP application with band placement drill@ 75 kg/ha-1 obtained greater wheat yield under irrigated condition.