D. Purnomo

The effect of season on farmer’s purchasing of liquid leaf fertilizers

D. Purnomo, D. Dukat, I. S. W. Atmaja, 2019, Journal of Physics: Conference Series.

Stannous chloride (SnCl2) and stannous sulfate (SnSO4) synthesis from tin powderization waste

W. Widayatno, M. I. Amal, M. Nasikin, 2021 .

Effectiveness and efficiency of potassium fertilizer application to increase the production and quality of rice in entisols

Suryono, S. Hartati, D. Purnomo, 2018 .