NPK Fertilizer With Slow Release Fly Ash

Nadhira Izzatur Silmi (Brawijaya University)
Fidela Azaria Antasari (Brawijaya University)
Della Afriyana (Brawijaya University)
Ridha Dini Rahmawati (Chemistry Department, Faculty of Mathematics and Natural Science, University of Brawijaya)
Ilham Sidik (Brawijaya University)
Sri Wardhani (Brawijaya University)

The Journal of Pure and Applied Chemistry Research
Vol 7, No 1 (2018): Edition January-April 2018

Fly ash is the solid of the remaining coal combustion carried along with the exhaust gas and captured by the air controller. Fluids in fly ash are Al2O3, SiO2, Fe2O3, CaO, MgO, Na2, and SO3 which are similar to zeolites. So that fly ash can be used as a substitute for zeolite for various carrier of fertilizer. The result of slow release test is known that N element has higher release level. The NPK fertilizer activity test of Fly Ash Slow Release was done on chilli plant with parameter of variation of fertilizer composition and plant height. Based on research result, fly ash-TSP 2: 1 fertilizer has the best result.