Abstract

Author:
Apil Joshi, Sanjay Kumar Raut Birendra Mahara, Anil Dahal, Khem Raj Upadhyaya

Doi: 10.26480/sfna.02.2024.70.77

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Mung bean is a valuable proteinous legume crop in Nepal, but the productivity is low in those soils where it is grown without the application of micronutrients. The research was conducted in Bardagoriya Rural Municipality-3 Kailali district, from March to June 2023, to study the effect of the Boron (B) and Zinc (Zn) on yield and yield attributing traits of spring mung bean. A randomized complete block design (RCBD) with three replications and seven treatments was used for the study. Treatments comprised two levels of B and Zn (1 and 2kg/ha), which were applied in seven different doses i.e., B0Zn0, B1Zn0, B0Zn1, B2Zn0, B0Zn2, B2Zn1 and B1Zn2 together with a recommended dose of N:P:K (20:20:20 kg/ha) and FYM 6 ton/ha with a variety Kalyan. Results revealed that effects of B and Zn were found statistically significant on the number of branches (1.88), pod per branch (5.16), number of pods per plant (14.73), pod weight (116g), pod length (8.98cm), number of grains per pod (10.47), economic yield (1.45 t/ha), number of nodules (41.33), effective nodule (28), biological yield (3.28t/ha), and harvest index (0.44) in treatment (Zn2 and B1 Kg/ha), similarly the number of leaves (8.11) in treatment B2kg/ha and thousand-grain weight (50.33g) in treatment Zn2kg/ha respectively. Non-significance was observed in plant height. The highest economic yield was obtained in (B1 and Zn2 kg/ha) treated plots, which was 26.09% higher than control (B0Zn0). Correlation studies indicated that economic yield 1.45 (ton/ha) showed a significant positive correlation with major yield contributing traits like number of pods per plant, pod weight, effective nodules and harvest index respectively. The study concluded that the amount of (B1 and Zn2 kg/ha) was the optimum dose for mung bean cultivation to maximize the economic yield.