Abstract
Fertilizer use efficiency by different crops is low on alkaline calcareous soils. Water is crucial for Phosphorus (P) availability. A field experiment was conducted on sandy clay loam, alkaline calcareous soil with low total nitrogen and available P. P was applied to wheat by side-dressing and broadcasting while irrigating at crown root; booting; earing; anthesis; and grain development stages to improve wheat yield. It was observed that maximum wheat grain and straw yield 3.97 and 4.95 t ha-1, respectively were obtained by side dressing P application along with four irrigations. Maximum P concentration in grain, straw and total P uptake was noted by side dressing P along with five irrigations. Grain yield was improved by side dressing over broad casting at all irrigation scheduling. Four irrigations (at crown root, booting, anthesis and grain development) proved better for grain production

A. Rahim, G.H. Abbasi, M. Rashid, A.M. Ranjha. (2007) Methods Of Phosphorus Application And Irrigation Schedule Influencing Wheat Yield, , Volume-44, Issue-3.
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