Abstract
An experiment was conducted to evaluate the yield performance of potato varieties with chemical and organic fertilizer at Chilime, Rasuwa. The experiment consisted of eight treatment combinations laid out in two factors Randomized Complete Block Design (RCBD) with three replications. Four potato varieties (Khumal-Seto-1, Khumal-Ujjwal, Janak-Dev and Kufri-Jyoti) with fertilizer (Recommended dose of chemical fertilizer (100:100:60 NPK kg ha-1) and organic farmyard manure (15 mt ha-1) were used to make eight treatment combinations. The results showed that Janak-Dev had the highest plant height (69.3 cm) and canopy diameter (60.92 cm). Khumal-Seto-1 had highest number of main stems per hill (3.75) which were statistically similar to Kufri-Jyoti (3.42) and Khumal-Ujjwal (3.25). Janak-Dev had the lowest number of main stems per hill (1.87). The effect of fertilizer was nonsignificant. Flowering occurred earlier in Janak-Dev at 61.17 days after sowing while Kufri-Jyoti flowered after 73.17 days after sowing. The highest number of tubers were found in Khumal-Seto-1 (9.167) and lowest in Janak-Dev (5.750). Number of tubers per plant was not affected by types of fertilizers used. Maximum weight of each tuber (107.7 grams), yield per plant (780 grams) and yield per hectare (37.1 mt ha-1) were obtained from Kufri-Jyoti. These parameters were the highest from chemical fertilizer application. This field experiment showed that Kufri-Jyoti with recommended dose of chemical fertilizer was appropriate to get optimum yield under Chilime condition. SAARC J. Agric., 19(1): 103-112 (2021)
Highlights
Potato (Solanum tuberosum) belongs to order Solanales in Solanaceae family of flowering plants (Grun, 1990)
Statistical analysis showed that there was significant effect with the application of organic fertilizer with regard to plant height at 45 DAS, 60 DAS and at 75 DAS and effect of inorganic fertilizer was highly significant at 90 DAS and at 105 DAS
Mean height of plant treated with inorganic fertilizer at 105 DAS was 54.1 cm which was significantly higher than plant (46.5 cm) treated with organic fertilizer
Summary
Potato (Solanum tuberosum) belongs to order Solanales in Solanaceae family of flowering plants (Grun, 1990). Combining inorganic fertilizer and organic manure showed significant effect on yield parameters of potato (Suh et al, 2015). Integrating organic fertilizer is very important for increasing potato yield and maintaining soil health. Plant height of different varieties were significant after 75 DAS (Table 1).
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