PENGARUH INTERVAL PENGGUNAAN SONIC BLOOM DENGAN PUPUK CAIR GROWMORE TERHADAP PERTUMBUHAN DAN HASIL BEBERAPA VARIETAS KEDELAI (Glycine max (L.) Merril)

Abstract

Soybean (Glycine max (L.) Merril) is a cheap source of food that contains the main vegetable protein for the people of Indonesia. Based on figures from the Central Bureau of Statistics, it shows that soybean production has increased in 2020 by 49.07% to 632.33 thousand tonnes from 2019 of 424.19 thousand tonnes however, in the following two years soybean production has decreased by 3% per year . Each will be 613.32 thousand tons in 2021 and 594.63 thousand tons in 2022. This decline is predicted to continue until 2024, while the national demand for soybean consumption is 7 million tonnes per year. One of the efforts to overcome the low productivity of soybeans in Indonesia is to use sonic bloom technology. Sonic bloom is a technology that combines high-frequency sound waves to stimulate the opening of leaf stomata so as to increase the efficiency of fertilizer absorption through the leaves. One alternative to inorganic fertilizers that has a high nutrient content is growmore. Growmore is a foliar fertilizer that contains macro and micro nutrients, the advantage of growmore fertilizer is that it can accelerate growth in young plants or in the vegetative phase. This research was conducted in the Technopark greenhouse, Tribhuwana Tunggadewi University, Malang, which was held from July to November 2022. This study used a Factorial Randomized Block Design (RAK). The first factor is the interval for using sonic bloom which consists of 3 levels, namely I₅ (interval for using sonic bloom every 5 days), I₁₀ (interval for using sonic bloom once for 10 days) and I₁₅ (interval for using sonic bloom once for 15 days). The second factor was a variety consisting of 3 levels, namely V_A (Anjasmoro Variety), V_D (Dega 1 Variety) and V_M (Mallika Variety). There were 9 treatment combinations, repeated 3 times and each treatment combination had 4 samples. This study aims to determine the productivity of soybean varieties using sonic bloom technology with Growmore liquid fertilizer. The interaction between the use of sonic bloom intervals using Growmore inorganic liquid fertilizer on soybean varieties had a significant effect on the growth of soybean plants of Anjasmoro and Dega 1 varieties with the best results at the interval of using sonic bloom every 5 days and the Mallika variety with the best results at the interval of using sonic bloom 15 days once, meanwhile on the yield and yield components of soybean plants Anjasmoro and Mallika varieties with the best results at the 15-day sonic bloom interval and the Dega 1 variety with the best results at the 5-day sonic bloom interval.

Keywords : Soybean Varieties, Growmore, Sonic Bloom