PENGARUH IMBANGAN KOMPOS BAGASSE AREN DAN UREA TERHADAP SERAPAN HARA N PADA BEBERAPA VARIETAS KEDELAI

The purpose study was to obtain a balanced dose of Urea and palm dregs with a mixture of tofu dregs that could increase N nutrient uptake in four soybean varieties. This research was conducted in the experimental field of Faculty of Agriculture UMY and the soil laboratory from May to October 2021. This research was carried method with a factorial design arranged in a Completely Randomized Block Design (RAKL). The first factor is the dose balance of urea and palm compost : 100% urea + 0% palm pulp compost (K0), 75% urea + 25% palm pulp compost (K25), 50% urea + 50% palm pulp compost (K50), 25% urea + 75% palm pulp compost (K75), and 0% urea + 100% palm pulp compost (K100). The second factor: Soybean Anjasmoro, Detam, Edamame and Local. The results showed that the Anjasmoro variety had a high N nutrient uptake at a dose balance of 25% palm dregs compost + 75% urea. The urea that gave the best N uptake results in Edamame and local soybean varieties was the dose balance of 75% palm pulp compost + 25% urea.