The present investigation entitled “Comparison of Reduced P Application and Supplemental Enhancement of Nitrogen (N) and Zinc (Zn) on their Availability and Yield of Rice Crop (Oryza sativa L.) in High-P Soil” was carried out at AICRP on Micronutrients, Hyderabad Centre, ANGRAU to (i) determine the availability of nitrogen and zinc under different P regimes of the same soil, (ii) to determine whether reducing the P application or supplementing additional nutrients is a better choice in high- P soil in terms of yield of paddy crop. A laboratory experiment was conducted after developing low (16), medium (40), high (63), v. high (102) and high (128 kg P2O5 ha-1 ) soil- P fertility regimes of a low P soil using its P- fixation characteristic curve and by employing 3 levels each of N and Zn to determine the availability of these nutrients under different P- fertility regimes. | Comparison of reduced p application and supplemental enhancement of nitrogen (N) and zinc (Zn) on their availability and yield of rice (Oryza sativa L.) crop in high- P soil
