[1]
A. A. Koreh, Widowati, and R. P. D. Julianto, “Long-term residual effects of biochar from tobacco scraps on red spinach (Amaranthus tricolor) growth in Entisols: a five-year field experiment with urea fertilizer addition”, J. Ilm. Pertan., vol. 20, no. 2, pp. 153-164, Jun. 2023.