RESPON DOSIS PUPUK FOSFAT DAN KOMPOS AMPAS TAHU PADA PERTUMBUHAN DAN HASIL TANAMAN KACANG PANJANG (Vigna Sinensis L.)
Abstract
The yield of long bean plants can be increased through fertilization with the right dose. One of the fertilizers given is phosphate fertilizer with a content of 36% P2O5. In addition, organic fertilizers are needed to optimize the availability of other nutrients in the soil. Tofu dregs compost is used to meet plant nutrient needs and improve soil structure. The purpose of this study was to determine the interaction between the dosage of Phosphate fertilizer and tofu pulp compost on the growth and yield of string beans. The experiment was carried out with a randomized block design (RBD), which was arranged in a factorial consisting of two factors which were repeated three (3) times. Each experimental unit consists of two (2) sample plants. The first factor is the dose of fertilizer Phosphate (F) which consists of 4 levels, namely F0 = without P fertilizer, F1 = 50 kg / ha, F2 = 100 kg / ha and F3 = 150 kg / ha. The second factor is the dosage of tofu pulp compost (T), consisting of 4 levels: T1 = 10 tons / Ha, T2 = 15 tons / Ha, T3 = 20 tons / Ha, T4 = 25 tons / Ha. The results showed that the dosage treatment of Phosphate fertilizer and tofu pulp compost did not show any interaction with the growth and yield of string beans; Phosphate fertilizer dosage treatment affected the number of leaves at the age of 10, 24 and 31 HST, flowering age, number of pods per plant, pod weight per plant. The average observation result of the highest number of leaves was obtained from F2 treatment, namely the Phosphate fertilizer dose of 100 kg / ha, the flowering age was faster in the F2 treatment (100 kg / ha), the number of pods in the F3 treatment (150 kg/ ha) and pod weight per plant in F3 treatment (150 kg / ha); Tofu dregs compost dosage treatment affected the number of leaves at the age of 17, 24 and 31 HST observation, number of pods per plant and pod weight per plant. The average observation result of the highest number of leaves was obtained from the T4 treatment (giving tofu pulp compost at a dose of 25 tons / ha), the number of pods in the T4 treatment (tofu pulp compost at 25 tons / ha), and pod weight per plant in the T3 treatment (dosage tofu dregs compost 20 ton / ha
