Fertilization Recommendations Based on Nutrition Status of N and K on Rainfed Rice field in Mantoh District

Iqbal Akase (Program Studi Agroteknologi Fakultas Pertanian Universitas Tompotika Luwuk)
Hidayat AM Katili (Department of Agrotechnology Faculty of Agriculture, Tompotika Luwuk University, Banggai, 94711, Central Sulawesi, Indonesia)

CELEBES Agricultural
Vol. 2 No. 2 (2022): CELEBES Agricultural

This study aims to recommend fertilization based on the nutrient status of N and K in rainfed rice fields; therefore, it is necessary to conduct a soil analysis to formulate fertilizer recommendations based on the nutrient status of N and K. This research was carried out in Bombanon Village, Mantoh District in July 2021. The chemical properties of the soil analyzed were N (Kjeldahl) and K (HCl25%). The result of soil analysis then matched with the PPT criteria for soil chemical properties status and Balitbangtan guidelines of N and P fertilization for rice crops. The results showed that the N contents at T1 and T3 were low, whereas T2 had a moderate N content. K content at the entire sampling sites were considered moderate. This study recommended N and K fertilization of 275 kg/ha and 50 kg/ha of urea and KCl, respectively, without returning straw.