This research aim to know the effect of TKKS application on some propertiesof physical and Chemical Ultisol soil based to durations of giving TKKS. This researchwas conducted at PT Sampoema Agro Tbk. Mesuji land at block 22/A, 23/B, 27/C,33/B, 12/A, 12/B, 24/D, 12/C, 00/C, 24/A, 24/B, 10/B ,02/C, 02/D, 11/C, 11/D, 10/A,10/C, 11/A, 24/C at Kec. Mesuji, Kab. OKI, South Sumatera. This research use…