The effect of zeolite/tsp fertilizers to amount of phosphates available in soil

A study on the effect of zeolite dosage mixed TSP fertilizers to the amount of phosphates available in soil was carried out. The purposes of this research were to obtain the optimum dose of zeolite mixed with TSP fertilizer in an effort to increase the phosphate available in the soil. This research method is laboratory experimental and field observation. Analysis of phosphate concentration uses stanchloride method using UV-Visible Spectrophotometer. This suggests that adding zeolites may increase the availability of phosphate in the soil. Meanwhile, when uses TSP (1 week) fertilizer the phosphate (0, 10, 20 and 30 cm) levels were 1.385; 0.866; 0.422 and 0.748 mg/L, respectively. Meanwhile, when uses TSP (1 week) fertilizer the phosphate (0, 10, 20 and 30 cm) levels were 1.385; 0.866; 0.422 and 0.748 mg/L, respectively. The results showed that the phosphate content of the zeolite ratio to TSP (1 : 2) was 1.575; 1.153 mg/L; 0.768; 0.583 mg/L. The ratio of zeolite to TSP (1 : 4) is 1.32; 1.26; 0.825; 0.753 mg/L. The ratio of zeolite to TSP (1: 6) is 1.608; 1,143; 0.869 and 0.764 mg/L. The ratio of zeolite to TSP (1: 8) is 0.932; 0.869; 0.881 and 0.589 mg/L. The ratio of zeolite to TSP (1 : 10) is 1.017; 0.791; 0.58 and 0.634 mg/L. Based on the data, the optimum ratio between zeolite and TSP fertilizer is 1: 2 ratio.