Journal of Food, Agriculture and Environment

Assessment of phosphorus use efficiency and various phosphorus application methods on wheat in calcarious soil

Author(s):

Qurban Ali Panhwar ^{1, 2}, Ambreen Rajput ², Umme Aminun Naher ³, Shamshuddin Jusop ^{1, 3}*

Recieved Date: 2014-02-25, Accepted Date: 2014-04-24

Abstract:

Phosphorus has been recognized as an essential constituent for plants. A field experiment was conducted in calcareous soil to evaluate the phosphorus fertilizer use efficiency (PFUE), P uptake and plant growth yield through different P fertilizer application on wheat crop. The treatments were: T₁ (control); T₂, 80 kg ha^-1 P₂O₅ broadcasting method; T₃, 80 kg ha^-1 P₂O₅ banding (applied with 1% H₂SO₄ at the 1^st irrigation); T₄, 60 kg ha^-1 P₂O₅ banding; T₅, 60 kg ha^-1 P₂O₅ banding (applied with 1% H₂SO₄ at 1^st irrigation); T₆, 40 kg banding + 20 kg ha^-1 P₂O₅ top dressing (applied with 1% H₂SO₄ at the 1^st irrigation); and T₇, 40 kg ha^-1 P₂O₅ banding applied with 1% H₂SO₄ at the 1^st irrigation. The result showed that the band plus acid treatment was more effective than broadcasting method of application. There were no significant differences found among the various banding applications. However, significant differences were observed among the various application methods, in terms of PUE, grain nutrient ratio (GNR), P uptake and VCR. Significantly high PFUE (straw 8.52% and grain 17.48%), GNR (13.5%), P uptake (straw 4.21, and grain 8.18 kg ha^-1) and VCR were found using 40 kg banding + 20 kg ha^-1 P₂O₅ top dressing method along with 1% H₂SO₄.

Keywords:

Phosphorus use efficiency, grain nutrient ratio, value cost ratio, residual phosphorus, yield

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Journal: Journal of Food, Agriculture and Environment
Year: 2014
Volume: 12
Issue: 2
Category: Environment
Pages: 1318-1322

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