Impact of varying levels of nutrients on growth and yield of various potato varieties (Solanum tuberosum L.)
Amrendra Kumar, Arun Kumar Maurya, Sunil Kumar, Rama Shankar Singh, Vikram Bharti, Shiv Shankar Dash and Nawal Kishor Ray
A field experiment was carried out to assess the effect of different levels of nutrients on vegetative growth and yield of potato varieties; Kufri Khyati, Kufri Arun and Kufri Sindhuri at different nutrients levels (N0: Control, N1: 50% NPK + 100% ZnSO4 as per RDF, N2: 100% NPK + 100% ZnSO4 as per RDF and N3: 150% NPK + 100% ZnSO4 as per RDF) in sandy loam soils at Research Farm, TCA, Dholi of RPCAU during Rabi, of 2023-2024. The experiment was laid out in a factorial randomized block design with 3 replications. The results indicated that the V2:Kufri Arun variety exhibited significantly greater plant height compared to the other. Furthermore, V2:Kufri Arun showed superior number of shoots, leaves and dry matter accumulation in comparison to V1:Kufri Khyati, although it was statistically at par with V3:Kufri Sinduri. Regarding nutrient levels, the application of 150% NPK + 100% ZnSO₄, as per RDF (N3), resulted in significantly higher plant height, no. of shoots per plant, no. of leaf and dry matter accumulation compared to N1: 50% NPK+100% ZnSO4 as per RDF and N2:100% NPK+100% ZnSO4 as per RDF. The V2:KufriArun variety produced a significantly higher tuber yield (20.63 t ha⁻¹), marketable yield (17.03 t ha⁻¹) and Haulm yield (10.56 t ha⁻¹) compared to V1:Kufri Khyati. Additionally, the application of 150% NPK + 100% ZnSO₄ as per RDF (N3), resulted in significantly higher tuber yield (25.83 t ha⁻¹), marketable yield (22.94 t ha⁻¹) and vine yield (12.60 t ha⁻¹) compared to the N1: 50% NPK + 100% ZnSO₄ and N2: 100% NPK + 100% ZnSO₄ treatments.
