Vol. 12, Issue 6 (2023)

Author(s):
Amrendra Kumar, Deepak Kumar, Sunil Kumar, DK Dwivedi, Shiv Shankar Dash and Manoj Kumar

Abstract:
This field experiment was conducted during the Rabi season of year 2020-21 on potato crop with variety Kufri Lalit to test the Effect of organic and inorganic fertilizers on growth and yield of potato (Solanum tuberosum L.)”.at Research farm of TCA, Dholi (Muzaffarpur), Bihar. The treatment combination is i.e., T₁ - control, T₂ – 50% RDF, T₃ – 100% RDF, T₄ - Crop residue incorporation (Rice straw 5 t/ha) + Biofertilizer (Azotobacter, PSB, Trichoderma viride 5 kg/ha each)_, T₅ - T4 + FYM 25 t/ha, T₆ - T4 + Vermicompost 7.5 t/ha, T₇- T4 + Neem cake 5 t/ha, T₈ - T4 + Poultry manure 3 t/ha. This experiment has conducted in randomized block design and thrice replicated it. The texture of experimental site was sandy loam with slightly alkaline in reaction (pH 8.31), low in organic carbon (0.47%) and available N (254 kg/ha). However, moderate in availability of P (17.4 kg/ha) and K (129.3 kg/ha), respectively. Among all treatments, treatment T₆ - T4 + Vermicompost 7.5 t/ha recorded higher plant's height (43.10), shoot's number/plant (5.47), dry matter accumulation (84.80 g/plant), tuber yield (24.12 t/ha) and treatment T₆ also recorded statistically at par with treatment T₃, T₅. In case of economic study, the benefit cost ratio (2.77) recorded from inorganic treatment T₃ (100% RDF). Conclusively organic treatments were not comparable with inorganic RDF treatment in terms of benefit cost ratio due to higher cost of organic inputs.