The long-term use of chemical fertilizers has impacted the levels of secondary macronutrients in agricultural soils in which scallion (Allium ascalonicum L.) crop is grown in Fai Luang sub-district, Lablare District, Uttaradit Province. Accordingly, the objective of this study was to investigate the effects of chemical fertilizer and insecticide use on the content of secondary macronutrients – including calcium (Ca), magnesium (Mg), and sulfur (S) – in the soils from regional scallion plots. The investigation was conducted in 5 villages within the sub-district: Moo 1. Baan Chaing-Saen (Control), Moo 2. Baan Nam-Tum (T1, 50% NPK), Moo 5. Ban Thung-Eang (T2, 100% NPK), Moo 6 Ban Na-Pong (T3, 100% FYK), and Moo 9 Ban Wat Pa (T4, 50 % NPK + 50%FYM). For each of the villages, soil samples from 3 scallion plots were tested for the levels of secondary macronutrients. The total average for each secondary macronutrient levels represented the results. The results are concluded as follows: for the status of change for exchangeable Ca+ average level, it was found that the exchangeable Ca+ average level decreased after every post-harvest period, with the highest control treatment of 45.10% followed by T2 (15.21%), T1 (12.72%), T4 (3.15%) and T3 (2.25%); for the status of change for exchangeable Mg+ average level, it was found that the exchangeable Mg+ average level decreased after every post-harvest period, with the highest control treatment of 19.37%, followed by T2 (13.29%), T1 (7.41%) and T3 (0.38%), but T3 treatment not change status; and for the status of change for exchangeable S average level, it was found that the exchangeable S average level decreased after every post-harvest period, with the highest T3 treatment of 166.67%, followed by T4 (112.50%), T1 (16.67%), but S average level increased in T2 (53.33%) and control (14.29%).
Keywords: Chemical fertilizer, Long-term, Allium ascalonicum L., Secondary macronutrients, Uttaradit Province
Dawe, D., Dobermann, A., Ladha, J. K., Yadav, R. L., Bao, L., & Gupta, R. K. (2003). Do organic amendments improve yield trends and profitability in intensive rice systems? Field Crops Research, 83(12), 191–213.
Fraser, P. M., Haynes, R. J., & Williams, P.H. (1994). Effects of pasture improvement and intensive cultivation on microbial biomass, enzyme activities, and the composition and size of earthworm populations. Biology and Fertility of Soils, 17(3), 185–190.
Ishizuka, Y., & Tanaka, A. (1960). Studies on the Metabolism of Nutritional Elements in Rice Plants. Journal of the Science of Soil and Manure, 31, 491-494.
Jackson, M. L. (1962). Soil Chemical Analysis. London: Constable and Co. Ltd.
Jiang, D., Hengsdijk, H., Dai, T. B., de Boer, W., Qi, J., & Cao, W. X. (2006). Long-term effects of manure and inorganic fertilizers on yield and soil fertility for a winter wheat maize system in Jiangsu, China. Pedosphere, 16(1), 25–32.
Kanjana, L. (1981). Study of soil fertility in Uttaradit Province. Bangkok: Department of Agriculture, Chemical Research Group, Agricultural, and Industrial Waste Materials Division.
Kawasaki, T. (1995). Metabolism and Physiology of Calcium and Magnesium. In T. Matsuo, K. Kumazawa, R. Ishii, K. Ishihara, & H. Hirata (Eds.), Food and Agricultural Policy Research Center. (pp. 412-419). Tokyo: Japan.
Land Development Department. (2010). Manual of soil analysis and chemical analysis. Retrieved From www.
Li, B.Y., Zhou, D. M., Cang, L., Zhang, H. L., Fan X. H., & Qin, S. W. (2007) Soil micronutrient availability to crops as affected by long-term inorganic and organic fertilizer applications. Soil and Tillage Research, 96(1-2), 166–173.
Nathan, K., Clain, J., & Jeff, J. (2002). Secondary macronutrient: cycling, testing and fertilizer recommendations. Bozeman, Montana: Nutrient management module No.6. Montana State University Publisher.
Rasmussen, P. E., & Kresge, P. O. (1986). Plant Response to Sulfur in the Western United States. In M. A. Tabatabai, (Ed.), Sulfur in Agriculture Agron. Monogr. 27. ASA, CSSA, and SSSA (pp. 357-374). USA: Madison, WI.
Silva, J. A., & Uchida, R. (2000). Plant Nutrient Management in Hawaii’s Soils. Retrieved from https://
Strategic Information Center. (2018). Fertilizers and agricultural chemicals. National Statistical Office. Retrieved from http://www.nic.go.th/gsic/uploadfile/Chemical.pdf
Soil Survey Staff. (2014). Keys to Soil Taxonomy (12th Ed.). U. S.: Government Printing Office, Washington, D.C.
Teerapat, S. (2007). Participatory learning in reducing health and environmental impacts from chemical use and changing chemical behavior. Mahasarakham University, Thailand.
Yongyut, S. (2009). Plant Nutrient. Bangkok: Kasetsart University Publisher.
Wijit, W. (2009). Nutrition with crop production. Bangkok: VB Book center Publisher.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.