Vol. 10, Issue 8 (2021)

Author(s):
Ashok Pandit, RK Raj, Santosh Kumar, Shalu Kumari and Umesh Singh

Abstract:
A field experiment was conducted during the rabi season of the year 2017-18 on potato for testing the recommended dose of fertilizers (RDF) levels (0, 50, 75, 100, 125, 150%) with two organic manures (vermicompost 5 t/ha and mustard oil cake 2.5 t/ha) at research farm of Tirhut college of Agriculture Dholi, Muzaffarpur, Bihar. The experiment was carried out in randomized block design (RBD) with twelve treatments and replicated thrice. The soil of experimental plot was Entisols, sandy loam in texture under low available in N, P and K with pH 8.3. Among the yield, and tuber yield were recorded higher with the application of treatment T₁₁ - 150% RDF + 5.0 t/ha vermicompost which was significantly superior over T₁ - absolute control, T₂ - 100% RDF, T3 - 50% RDF + 5.0 t/ha vermicompost, T4 - 50% RDF + 2.5 t/ha mustard oil cake, T₅ - 75% RDF + 5.0 t/ha vermicompost and T₆ - 75% RDF + 2.5 t/ha mustard oil cake but was statistically at par with treatments, T7 - 100% RDF + 5.0 t/ha vermicompost, T₈ - 100% RDF + 2.5 t/ha mustard oil cake, T₉ - 125% RDF + 5.0 t/ha vermicompost, T₁₀ - 125% RDF + 2.5 t/ha mustard oil cake and T₁₂ - 150% RDF + 2.5 t/ha mustard oil cake. But in the case of benefit: cost ratio the treatment T₂ - 100% RDF (2.11) fetched significantly higher benefit: cost ratio in comparison to treatment T₇ (1.62), T8 (1.31), T₉ (1.67), T₁₀ (1.35), T₁₁ (1.66) and T₁₂ (1.35), whereas minimum benefit: cost ratio was obtained with treatment T₁- absolute control (0.69).