Vol. 12, Issue 11 (2023)

Author(s):
Kajal Verma, Tejpal Chandrakar, K Tedia, Ashwani Kumar Thakur and Devendra Pratap Singh

Abstract:
An experiment has been conducted since year 2014 kharif on effect of long term nutrient management practices on yield of rice and nutrient use efficiency in Inceptisols under rainfed midland situation at Bastar plateau zone at the Shaheed Gundadhur College of Agriculture and Research Station, Kumhrawand, Jagdalpur, Chhattisgarh, India. The twelve treatments replicated thrice in randomized block design were T₁: Absolute control, T₂: RDF of 100:60:40 NPK kg/ha, T₃: 100% PK, T₄: 100% NK, T₅:100% NP, T₆: 100% NPK + 5 t FYM/ha, T₇: 100% NPK + 5 t FYM/ha + 25 kg/ha ZnSO₄, T₈: 100% NPK + 5 t FYM/ha + 25 kg/ha ZnSO₄ + 3 q/ha Lime, T₉: 50% NPK, T₁₀: 50% NPK + 5 t FYM /ha, T₁₁: 50% NPK + 5 t FYM/ha + ZnSO₄ @ 25 kg/ha and T₁₂: 50% NPK + 5 t FYM /ha + ZnSO₄ @ 25 kg/ha + lime @ 3 q/ha. The soil in the experiment field was Inceptisols, which had a slightly acidic pH, medium levels of organic carbon, little readily accessible nitrogen, and medium levels of P and K. During kharif 2022, T₈ (100% NPK + 5 t FYM/ha + ZnSO₄ @ 25 kg/ha + Lime @ 3 q/ha) resulted highest grain and straw yield but at par with T₆ (100% NPK + 5 t FYM/ha).The most effective agronomic use efficiency and apparent nutrient recovery were given by the treatment T₁₂ (50% NPK + 5 t FYM/ha + ZnSO₄ @ 25 kg /ha + lime @ 3 q /ha); and better production efficiency was found maximum for N in T₉ (50% NPK); and for P and K, it was T₃ (100% PK).