Muslimah, A., Wagiono, W. and Sugiono, D. 2021. The effect of giving silica and npk fertilizers at different spacings on the growth and yield of rice (Oryza sativa l.) Ciherang varieties. 7, 8 (Dec. 2021), 770-784. DOI:https://doi.org/10.5281/zenodo.5810402.