Potassium Fertilizer Application Rates for Fertigated Edamame Grown on Low-K Soils
DOI:
https://doi.org/10.29244/jtcs.11.03.320-328Keywords:
dry soil test device (DSTD), marketable, nutrient uptake, pods, seedsAbstract
Edamame, a legume consumed fresh as a vegetable, is highly nutritious, particularly protein-rich, and holds significant economic value. However, its cultivation faces challenges, especially on dry land, due to water scarcity and limited nutrient availability, particularly potassium (K). This study, which investigated the impact of potassium fertilization rate on edamame cultivation, underscores the need for further research. The study utilized a single factor, potassium fertilization rate, arranged in a completely randomized block design. Potassium rates consist of 0% X, 50% X, 100% X, 150% X, and 200% X, where X represents the recommended potassium fertilization rate according to the dry soil test device (DSTD) guidelines. Each treatment was replicated five times. Data were analyzed using ANOVA at a 5% significance level, and any significant effects were further examined using orthogonal polynomial and regression analysis. The results indicated that potassium fertilizer rates did not significantly affect edamame height, pod weight per plot, and marketable yield. However, the study identified the optimal potassium fertilizer rate, which was between 83%X and 119%X, equivalent to 83–119 kg.ha⁻¹ of KCl (50–72 kg.ha⁻¹ of K₂O). This range positively increased total branch yield, productive branches, number of flowers, pod weight per plant, number of pods per plant, and plant dry weight, producing a quadratic response pattern. The study recommends further research to optimize potassium fertilizer doses based on DSTD recommendations, particularly at a low K nutrient status, to maximize marketable yields through fertigation.
References
Almasprabowo, A., Amarullah, A., and Murtilaksono, A. (2020). Effect of k fertilizer rate on growth and yield of soybean (Glycine Max). Journal Agricultural Science 2, 12–18. DOI:10.35334/jpen.v2i2.1508.
Astari, K., Yuniarti, A., Sofyan, ET., and Setiawati, MR. (2016). The effect of a combination of N, P, K fertilizers and vermicompost on the content of C-organic, total N, and C/N and soybean yield. Journal Agroekotek 8, 95-103.
Aulya, M.R., Subaedah, S., and Takdir, A. (2019). Characterization of drought tolerant maize genotypes in drylands. AGROVITAL Journal Agricultural Science 4, 9. DOI:10.35329/agrovital.v4i1.299.
Cita, Insani. (2022). How to find out the nutrient, N, P and K content in soil with a dry soil test device (DSTD). https://belajartani.com/cara-mengetahui-mengukur-kandungan-unsur-hara-n-p-dan-k-di-tanah-dengan-perangkat-uji-tanah-kering-putk/ [September 25, 2024].
Gani, L.F. and Fauzi, A.R. (2023). Growth and production characters of edamame soybean (Glycine max (L.) Merril) in plant spacing treatment and Paclobutrazol concentration. Journal Agroecotechnology and Agribusiness 7, 43–61. DOI:10.51852/jaa.v7i1.583.
Gorung, AS., Rondonuwu, J.J., and Titah, T. (2022). Effect of urea fertilizer on the growth of spinach (Amaranthus tricolor L) on rice field soil in Ranoketang Atas village. Soil Environ 22, 12-16.
Hamdani, K.K. and Permadi, K. (2015). Fertilization of cassava plants based on dry soil test kit method in increasing production. Agros 17, 81-87.
Heryani, N. and Rejekiningrum, P. (2020). Development of dryland dry climate agriculture through the implementation of five land management. Land Resources Journal 13, 63. DOI: 10.21082/jsdl.v13n2.2019.63-71.
Ilham, Ezward, C., and Mashadi. (2020). Application of cow urine liquid organic fertilizer to increase long bean (Vignasinensis L.) production. Green Swarnadwipa Journal 9, 47-55.
Kementerian Pertanian. (2023). “Jember Edamame Export”. https://www.pertanian.go.id/home/?show=news&act=view&id=4148 [November 8, 2023].
Kurniawan, S., Rasyad, A., and Wardati. (2014). Effect of phosphorus fertilizer on the growth of several varieties of soybean (Glycine max (L). Merril). JOM Faperta 1, 2.
Kurniawati, R., Astiningrum, M., and Oktasari, W. (2022). Types of liquid organic fertilizer (POC) on the yield of edamame soybean (Glycine max (L.) Merr.). Journal Tropical and Subtropical Agricultural Sciences 7, 9-18. DOI: doi.org/10.31002/vigor.v7i1.5976
Ma'sum, M.A., Partoyo, P., and Kundarto, M. (2020). Land suitability for edamame soybean in Purwobinangun village, pakem sub-district, Sleman district. Journal Soil and Water 17, 11. DOI:10.31315/jta.v17i1.3990.
Maulidya, S., Mariyam, Oklima, A., and Kusnayadi, H. (2023). Increased edamame soybean growth and yield (Glycine max (L) Merril.) by applying rice husk ash waste and compost biofertilizer in dryland during the rainy season. Journal Agrotechnology 3, 1. 2032. http://www.ejournallppmunsa.ac.id/index.php/agro teknologi/article/view/1103.
Mulyadi, A. (2012). Effect of legin, NPK fertilizer (15:15:15) and urea on peat soil on total nitrogen, phosphorus content of shoots and root nodules of soybean. Integration and Interconnect Islam and Science Journal 9, 21–29. DOI: https://doi.org/10.14421/kaunia.1038.
Prabowo, R. and Subantoro R. (2017). Soil analysis indicates the fertility level of agricultural cultivation land in Semarang city. Cendekia Eksakta Scientific Journal 59-64.
Pujiwati, H., Rahmah, AU., and Widodo. (2023). Growth and yield of edamame due to bokashi application at different planting distances in ultisol In “Proceedings National Seminar in the Framework of the 47th Anniversary of UNS 2023” pp 237-254.
Ramadhani, M., Silvina, F., and Armaini. (2016). Application of manure and water volume on the growth and yield of edamame soybean (Glycine max (L) Merril.). JOM Faperta 3, 1-13.
Riyantini, I.P., Sudiarso, and Tyasmoro, S.Y. (2016). Effect of goat manure and KCL fertilizer on growth and yield of edamame (Glycine max (L.) Merr.). Journal Crop Production 3, 97-103.
Saputra, R.A., Jumar, J., and Hayatullah, M. (2021). Growth and yield of edamame soybean (Glycine max (L.) Merr.) with the application of guano organic fertilizer in Tukungan soil. Enviro Scienteae 17, 114. DOI:10.20527/es.v17i1.11364.
Sipayung, A.M., Bangun, J., and Sipayung, P. (2023). Effect of NPK fertilizer application and plant spacing on Edamame soybean production of Ryoko variety. Journal Online Agroecotechnology 11, 10–15. DOI:10.32734/joa.v11i2.13720.
Susila, A.D., Oktavia, A., and Varian, B.Y. (2020). Fertigation methods and N source on chili through drip irrigation. Indonesian Agronomy Journal 48, 268–274. DOI 10.24831/jai.v48i3.32662.
Witman, S. (2021). Application of drip irrigation methods to support water use efficiency in drylands. Triton Journal 12, 20–28. DOI:10.47687/jt.v12i1.152.
Wood, C.W., Reeves, D.W., and Himelrick, D.G. (1973). Relationships between chlorophyll meter readings, leaf chlorophyll concentration, N status, and crop yield In “Agronomy Society Proceedings” pp 1–9.
Worwood, D. (2014). “Edamame in the Garden” https://digitalcommons.usu.edu/ cgi/viewcontent [June 16, 2024].
Xu, Y., Cartier, A., Kibet, D., Jordan, K., Hakala, I., Davis, S., Seymour, E., Kering, M., and Rutto, L. (2016). Physical and nutritional properties of edamame seeds as affected by developmental stage. Journal of Food Measurement and Characterization 10, 193–200. DOI:10.1007/s11694-015-9293-9.
Yoseva, S., Armaini, Nurbaiti, and Daeli, E.N. (2022). Improvement of growth and production of soybean (Glycine max L) on the application of vermicompost and NPK fertilizers on inception soil. Journal of Tropical Agrotechnology 11, 74-85.
Yusdian, Y., Minangsih, D.M., and Herawati, D. (2023). Effect of combined doses of NPK (15:15:15) and KCL fertilizers on the growth and yield of edamame (Glycine max (L.) Merril) variety ryoko-75. Agricultural Scientific Journal 5, 12-18. DOI:10.55222/agrotatanen.v5i1.941.
Zarkadas, C.G., Gagnon, C., Gleddie, S., Khanizadeh, S., Cober, E.R., and Guillemette, R.J.D. (2007). Protein quality assessment of fourteen soybean (Glycine max (L.) Merr.) cultivars using amino acid analysis and two-dimensional electrophoresis. Food Research International 40, 129-146. DOI:10.1016/j.foodres.2006.08.006.
Zotarelli, L., Dukes, M.D., Scholberg, J.M.S., Muñoz-Carpena, R., and Icerman, J. (2009). Tomato nitrogen accumulation and fertilizer use efficiency on sandy soils, as affected by nitrogen rate and irrigation scheduling. Agricultural Water Management 96, 1247-1258. DOI:10.1016/j.agwat.2009.03.019.
Downloads
Published
How to Cite
Issue
Section
License
All publications by Journal of Tropical Crop Science is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.