马铃薯是Bajhang地区许多地区的重要食品和经济作物,具有高产潜力。然而,不一致的NPK肥料施用量和次优的马铃薯品种选择会阻碍实现最佳产量,包括农民根本不使用肥料的情况。为了应对这些挑战并确定最有效的NPK肥料用量和马铃薯品种,在Bajhang区的Surma农村直辖市进行了田间试验。实验采用随机完全区组设计(RCBD),重复三次,评估四种NPK肥料用量(0:0:0,50:50:50,100:100:60和150:150:90kgNPK/ha)和三种马铃薯品种(KhumalSeto,红衣主教,和BajhangLocal),关于增长,产量,和经济盈利能力。统计分析,包括方差分析和邓肯多范围检验(DMRT),表明植物高度的最高值,雨棚直径,叶子的数量,主茎的数量,块茎重量,叶和茎的新鲜重量,在KhumalSeto或Bajhang本地马铃薯品种中,始终观察到平均块茎直径和每山可销售块茎的数量更高。同样,这些结果在应用150:150:90kgNPK/ha时尤为突出。经济分析表明,KhumalSteto品种在总收益方面表现优异,净收益,和效益成本比(NPR分别为1,805,714.29、NPR1,306,168.83、3.61)与其他品种比较。同样,应用150:150:90千克NPK/公顷可带来更高的经济回报(NPR1,645,714.29,NPR1,129,908.83和3.19)。总之,使用更高水平的矿物肥料(150:150:90kgNPK/ha),具有高产和适应良好的马铃薯品种,例如KhumalSeto和BajhangLocal显着促进生长,产量,和马铃薯种植的盈利能力,正如这项研究的结果所证明的那样。
Potato is a crucial food and cash crop with high yield potential in many parts of the Bajhang district. However, achieving optimal yields can be hindered by inconsistent NPK fertilizer application rates and suboptimal potato variety selection, including instances where no fertilizers are used at all by the farmers. To address these challenges and determine the most effective NPK fertilizer rates and potato
varieties, a field experiment was conducted in Surma rural municipality of Bajhang district. The experiment utilized a randomized complete block design (RCBD) with three replications, to evaluate the effects of four NPK fertilizer rates (0:0:0, 50:50:50, 100:100:60, and 150:150:90 kg NPK/ha) and three potato
varieties (Khumal Seto, Cardinal, and Bajhang Local), on growth, yield, and economic profitability. Statistical analysis, including analysis of variance and Duncan\'s multiple range test (DMRT), indicated that the highest values for plant height, canopy diameter, number of leaves, number of main stems, tuber weight, fresh weight of leaves and stems, average tuber diameter and number of marketable tubers per hill were consistently observed higher in either the Khumal Seto or Bajhang Local potato
varieties. Similarly, these results were particularly prominent with the application of 150:150:90 kg NPK/ha. Economic analysis demonstrated that the Khumal Seto variety showed superior performance in terms of gross benefit, net benefit, and benefit-to-cost ratio (NPR 1,805,714.29, NPR 1,306,168.83, and 3.61, respectively) when compared to other
varieties. Similarly, the application of 150:150:90 kg NPK/ha resulted in higher economic returns (NPR 1,645,714.29, NPR 1,129,908.83, and 3.19). In conclusion, using higher levels of mineral fertilizers (150:150:90 kg NPK/ha) with high yielding and well adapted potato
varieties such as Khumal Seto and Bajhang Local significantly enhances growth, yield, and profitability in potato cultivation, as demonstrated by the findings of this study.