PJB-2021-656
WHEAT RESPONSE TO PHOSPHORUS AND ZINC MANAGEMENT UDEER FULL AND LIMITED IRRIGATION REGIMES
Abdul Latif Jan
Abstract
WHEAT RESPONSE TO PHOSPHORUS AND ZINC MANAGEMENT UDEER FULL AND LIMITED IRRIGATION REGIMES Abdul LATIF Jan and Amanullah Department of Agronomy, Faculty of Crop Production Sciences The University of Agriculture, Peshawar-Pakistan November, 2021 ABSTRACT Field experiment was carried out to evaluate growth and yield response of wheat (CV. Pirsabak-2015) to phosphorus and zinc. The experiment was carried out under both full (4 irrigations} and limited only (two) irrigation. The experiment was conducted at the Agronomy Research Farm The University of Agriculture Peshawar during winter 2020-21. The experiment under both full and limited irrigation regimes was laid out in randomized complete block design using three replications. The results reveled that phosphorus applied at the highest rate of 100 kg P ha-1 resulted early days to physiological maturity (154.4), more tillers (280.9 m-2), productive tillers (267.1 m-2), leaf area (27.2 cm2), plant height (102.7 cm), number of grains spike-1 (51.9), spike length (13.6 cm), thousand grains weight (51.1 g), biological yield (11223 kg ha-1), grain yield (4972 kg ha-1) and harvest index (44.7%). Zinc applied at the highest rate of 15 kg Zn ha-1 resulted in early days to physiological maturity (156.6), produced highest tillers (277.4 m-2), productive tillers (263.2 m-2), leaf area (26.4 cm2), plant height (97.8 cm), number of grains spike-1 (49.0), spike length (13.1 cm), thousand grains weight (49.1 g), biological yield (9471 kg ha-1), grain yield (4807 kg ha-1) and harvest index (44.2). The full irrigated field highest productive tillers (254.7 m-2), leaf area (26.3 cm2), plant height (97.3 cm), number of grains spike-1 (48.4), spike length (13.2), thousand grains weight (48.6 g), biological yield (9082 kg ha-1), grain yield (4656 kg ha-1) and harvest index (43.2%) than limited irrigation regimes. The interaction between PxZn show that increase the level of Phosphorus and Zinc increase early days to physiological maturity and highest biological yield and grain yield kg ha-1. The interaction between IxZn revealed that under full irrigation regime field all the Zn levels resulted in higher spike length and leaf area cm2. It was concluded that both phosphorus and zinc levels 100 kg P ha-1 and 15 kg Zn ha-1 increased the yield and yield components of wheat under both full and limited irrigation regimes in study area.
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