Impact of potassium fertilization and stress-mitigating chemicals on productivity and profitability of mungbean [Vigna radiata (L.) Wilczek]
DOI:
https://doi.org/10.59797/ija.v70.i2.5611Keywords:
Kinetin, Mungbean, NAR, Potassium, Potassium nitrate, Thioglycolic acidAbstract
A field experiment was conducted at the Agronomy Farm, S.K.N. College of Agriculture, Jobner, Rajasthan, during the Kharif 2022 to assess the impact of different levels of potassium and stress-mitigating chemicals on mungbean [Vigna radiata (L.) Wilczek]. The experiment was laid out in a factorial randomized block design with three replications. Treatments comprised of potassium doses of 20, 30 and 40 kg K2O/ha with a control and stressmitigating chemicals [KNO3 @ 100 ppm, thioglycolic acid @ 100 ppm and kinetin @ 50 ppm and control]. Data showed that application of 40 kg K2O/ha significantly increased plant height, dry matter accumulation and plant growth indices, viz. crop growth rate (CGR), relative growth rate (RGR), net assimilation rate (NAR) and leaf area index (LAI) over control and 20 kg K2O/ha. However, it was at par to 30 kg K2O/ha in terms of RGR and NAR. Further, foliar sprays of TGA @ 100 ppm at 30 and 45 days after sowing significantly improved plant height and dry matter accumulation at 50 DAS and maturity, CGR, RGR and NAR at 25–50 DAS and LAI at 50 DAS over control and KNO3 @ 100 ppm while it remained on par with kinetin @ 50 ppm. The highest net returns (`61,554 and 62,543) and B:C ratio (3.16 and 3.40) were also recorded by application of 40 kg K2O/ha and foliar spray of TGA @ 100 ppm, respectively. Hence, application of 40 kg K2O/ha and two foliar sprays of TGA @ 100 ppm at 30 and 45 days after sowing may be recommended to achieve higher growth and profitability of mungbean.
References
Amanullah, Yar, M., Khalid, S., Elshikh, M.S., Akram, H.M., Imran, Al-Tawaha, A.R.M., Ahmad, M., Muhammada, A., Ullah, S., Ali, A., Fahad, S., Adnan, M. and Ali, A. 2021. Phenology, growth, productivity, and profitability of mungbean as affected by potassium and organic matter under water stress vs. no water stress conditions. Journal of Plant Nutrition 45(5): 629–650.
Araujo, S.S., Beebe, S., Crespi, M., Delbreil, B., Gonzalez, E.M., Gruber, V., Lejeune-Henaut, I., Link, W., Monteros, M.J., Prats, E., Rao, I., Vadez, V. and Patto, M.C.V. 2015. Abiotic stress responses in legumes: strategies used to cope with environmental challenges. Critical Reviews in Plant Sciences 34(1–3): 237–280.
Athnere, S., Kolage, A., Gagare, Y. and Gadakh, M. 2021. Effect of irrigation regimes and foliar sprays of potassium on growth and economics of summer greengram (Vigna radiata). Indian Journal of Agronomy 66(3): 373–377.
Banerjee, P., Kumari, V.V. and Nath, R. 2023. Nutrient management of spring-summer blackgram (Vigna mungo) with cobalt, potassium and boron under different dates of sowing in Eastern India. Indian Journal of Agronomy 68(1): 44–47.
Ehsan, Q., Rana, D.S. and Choudhary A.K. 2017. Influence of crop establishment methods and phosphorus fertilization on production efficiency, profitability and resource-use efficiency of mungbean (Vigna radiata L. Wilczek) in southern Afghanistan. Indian Journal of Agronomy 62(3): 367–370.
Fayez, K.A. and Bazaid, S.A. 2014. Improving drought and salinity tolerance in barley by application of salicylic acid and potassium nitrate. Journal of the Saudi Society of Agricultural Sciences 13(1): 45–55.
Government of India. 2021–2022. Fourth Advance Estimates of Production of Foodgrains. Directorate of Economics and Statistics, Department of Agriculture and Farmers Welfare, Ministry of Agriculture and Farmers Welfare, Government of India, New Delhi.
Hussain, F., Malik, A.U., Haji, M.A. and Malghani, A.L. 2011. Growth and yield response of two cultivars of mungbean (Vigna radiata L.) to different potassium levels. The Journal of Animal and Plant Sciences 21(3): 622–625.
Jat, M.K., Yadav, P.K., Tikkoo, A. and Yadav, S.S. 2022. Effect of potassium application on yield and quality of green gram (Vigna radiata L.) on coarse textured soils of Southern Haryana. Indian Journal of Experimental Biology 60: 59–63.
Lakhran, H., Sharma, O.P., Bajiya, R., Verma, H. P., Gupta, A. and Kanwar, S. 2021. Effect of thermal environment and bioregulators on productivity, profitability and nutrient uptake of wheat (Triticum aestivum) under semi-arid conditions of Rajasthan. Indian Journal of Agronomy 66(1): 19–24.
Nathawat, N.S., Rathore, V.S., Meel, B., Bhardwaj, S. and Bhargava, R. 2018. Exogenous sulphydryl improves membrane stabilization, photosynthesis and antioxidant defense systems in Vigna aconitifolia L. under water stress. (In): Proceedings of the National Academy of Sciences, India, Section B: Biological Sciences 88(3): 875–885.
Prasad, R., Kumar, D., Rana, D.S., Shivay, Y.S. and Tewatia, R.K. 2014. Potassium Management. Textbook of Plant Nutrient Management, Indian Society of Agronomy, New Delhi, pp. 122–123.
Werner, T., Nehnevajova, E., Kollmer, I., Novak, O., Strnad, M., Kramer, U. and Schmulling, T. 2010. Root-specific reduction of cytokinin causes enhanced root growth, drought tolerance, and leaf mineral enrichment in Arabidopsis and tobacco. The Plant Cell 22(12): 3,905–3,920.
