Effect of integrated nutrient management on yield and nutrient uptake of potato (Solanum tuberosum L.)

Abstract

A field experiment was conducted during the Rabi season of the year 2017-18 on potato with variety Kufri Ashoka to test 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, nutrient uptake and available nutrient in soil after harvesting of potato 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.

Effect of integrated nutrient management (INM) on nutrient uptake, yield and quality of potato (<em>Solanum tuberosum</em> L.)

“…(2018) [22] and many more. Similarly, yield enhancement through yeast vinasse corroborated the findings of Mahmoud et al (2019) [20] in spinach and barley.…”

“…In the present context of rapidly growing population and limited agricultural area with no scope of further area spreading, in order to avoid disparity between demand and supply, potato cultivation highly urges for more and more return. Proper quantity and timely supply of nutrients is the most important factor in realising high productivity of potato cultivation as potato is a heavy feeder and highly responsive to nutrient supply (Westermann, 2005; Pandit et al, 2018) [29,22] . So far, potato cultivation has mostly remained with the supply of nutrients (nitrogen, phosphorus, potassium etc.)…”

“…So far, potato cultivation has mostly remained with the supply of nutrients (nitrogen, phosphorus, potassium etc.) through chemical fertilizers (Pandit et al, 2018) [22] . However, with the increment of the price of these chemical fertilizers as well as its issues of environmental hazards, potato cultivation is now required to be shifted to a promising alternative of inorganic nutrition, called integrated nutrient management (INM).…”

“…Specifically, it addresses the adverse effects of chemical fertilizers on soil health and crop qualities as well as incorporates the benefits of organic manures to improve soil fertility and crop performance (Chang et al, 1991;Ahmed et al, 1996;Brady, 1996;Chung et al, 2000;Keupper and Gegner, 2004) [7,6,8,18] . Previous studies (Raghav et al, 2009;Baishya et al, 2012, Pandit et al, 2018 [23,4,22] have already stated the importance of INM on quality and quantity of potato crop over sole application of chemical fertilizers. The present experiment has been framed for confirmation of previous works and also to investigate further the best INM option for potato cultivation.…”