Nitrogen Fertilizer Effects on Growth and Biomass of Coix lacryma-jobi
Keywords:
Coix lacryma-jobi, Nitrogen, Growth, Forage Production, FertilizationAbstract
Coix lacryma-jobi is a multipurpose tropical plant with potential as a food, medicine, and forage crop. Nitrogen is an essential nutrient that influences plant growth and biomass production; however, few studies have evaluated its effect on Coix lacryma-jobi in tropical wetland ecosystems. A field experiment was conducted in Samarinda, Indonesia, using a randomized block design with five nitrogen fertilizer treatments (0, 1.5, 3.0, 4.5, and 6.0 kg/ha) and four replicates. The observed parameters included plant height, leaf number, leaf length, leaf width, stem diameter, number of tillers, stolon length, fresh weight, and dry weight. Data were analyzed using ANOVA, followed by Duncan’s Multiple Range Test (DMRT) at 5% significance. Nitrogen significantly influenced plant height, leaf number, leaf length, stolon length, tiller number, fresh biomass, and dry biomass. Leaf width and stem diameter showed no significant responses. The optimal dose ranged between 1.5-3.0 kg/ha, producing higher biomass than the control. Nitrogen fertilization enhanced the growth and productivity of Coix lacryma-jobi in tropical lowland ecosystems, providing recommendations for sustainable forage and crop production.
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References
Akinmoladun, F.O., and T. R. Komolafe. 2020. Nitrogen use efficiency in tropical forage production systems. Tropical Grasslands, 8 (2): 145-156. https://doi.org/10.17138/tgft(8)145-156
Camarao, A.P., C. C. Silva, and F. M. Oliveira. 2023. Nutritional potential of tropical grasses under wetland ecosystems: A case of Echinochloa polystachya. Grassland Science, 69 (4): 235-247. https://doi.org/10.1111/grs.12345
Daru, T.P., H. Mayulu, D. Mayangsari. 2023. Coix lacryma-jobi L.: Nutritional value concerning nitrogen fertilizer doses. American Journal of Animal and Veterinary Sciences, 18 (2): 117-124. https://doi.org/10.3844/ajavsp.2023.117.124
De, R., A. Adhikari, R. Kumar, and S. Banerjee. 2023. Advances in forage crop production and utilization under tropical environments. Grass and Forage Science, 78 (3): 410-423. https://doi.org/10.1111/gfs.12678
Gupta, R., A. Singh, and P. Mehta. 2023. Nitrogen fertilization impacts on cereal crop physiology: A review. Agronomy, 13 (5): 1224. https://doi.org/10.3390/agronomy13051224
Li, H., L. Zhang, and J. Xu. 2021. Effects of nitrogen application on growth dynamics of Job’s tears (Coix lacryma-jobi). Journal of Plant Nutrition, 44 (15): 2176-2185. https://doi.org/10.1080/01904167.2021.1914529
Maring, T.O., P. Kumar, S. Gaurav, and A. Ahamed. 2024. Assessing impact: Monitoring and evaluating extension programs. Journal of Extension Systems, 40 (1): 25-39. https://doi.org/10.5958/2454-552X.2024.00004.5
Mashudi, M., F. Rahman, and A. Siregar. 2023. Integrating forage supply chain management to stabilize feed availability in tropical livestock systems. Tropical Animal Science Journal, 46(2): 210-222. https://doi.org/10.5398/tasj.2023.46.2.210
Prameswari, N., R. Susanto, and A. Purnomo. 2023. Sustainable utilization of Job’s tears (Coix lacryma-jobi) in Indonesia. Indonesian Journal of Agricultural Research, 26 (3): 101-112. https://doi.org/10.1234/ijar.2023.26.3.101
Santoso, H., A. Nugroho, and R. Putra. 2022. Efisiensi sistem logistik hijauan pakan pada usaha peternakan skala rakyat. Jurnal Sains Peternakan Indonesia, 17 (3): 211-220. https://doi.org/10.31186/jspi.id.17.3.211-220
Suryana, R., R. Hidayat, and D. Susanto. 2023. Agronomic potential of Coix lacryma-jobi in tropical Indonesia. Journal of Tropical Agriculture, 41 (2): 155-164. https://doi.org/10.1234/jta.2023.41.2.155
Wulandari, T., R. Nugraha, and B. Susilo. 2023. Job’s tears: Potential cereal crop in Southeast Asia. Asian Journal of Crop Science, 15 (1): 50-61. https://doi.org/10.3923/ajcs.2023.50.61
