The research aimed to determine the effect of rice husk biochar and tithonia liquid organik fertilizer (LOF) on the growth and production of peanut plants. This research has been completed. The study used a factorial completely randomized design. The first factor was the dose of rice husk biochar (B) consisting of 4 levels (0; 0,6; 1,2; 1,8 kg/plot), and the second factor was the concentration …
The purpose of the study was to identify fauna (insect pests and natural enemies) that interact with various upland rice cultivars specific to Riau Province and to evaluate the resistance of various upland rice cultivars specific to Riau Province to OPT. The study was conducted in Pangkalan Baru Village, Siak Hulu District, Kampar Regency. The duration of the study was 9 months, starting from F…