Respon Pertumbuhan dan Produksi Tanaman Pakcoy (Brassica Rapa L.) terhadap Perbedaan Dosis dan Waktu Pemupukan Pupuk Hayati Cair

Abstract

Pakcoy is one type of green vegetable that is still in the same family as mustard greens. The growth of vegetable plants can be increased by applying biofertilizers, biofertilizers contain Plant Growth Promoting Rhizobacteria (PGPR) which is a class of bacteria that live and develop well in soil rich in organic matter, these bacteria actively colonize the root area of plants, have an important role for plants, namely: As a biofertilizer PGPR is able to accelerate the process of plant growth through accelerated absorption of nutrients, as a biostimulant PGPR can spur plant growth through the production of phytohormones and as a bioprotectant PGPR protects plants from pathogens. This study aims to determine the growth and production response of pakcoy plants to different doses and fertilization times of liquid biological fertilizer. This research will be conducted from July to August 2023. This study used a factorial Randomized Group Design (RAK) consisting of 3 replicates with 2 treatment factors. Factor I Dosage of Liquid Biofertilizer: 10 L/ha, 20 L/ha, 30 L/ha. Factor II Application Time: 7 days after transplanting, 10 days after transplanting. Based on the research that has been done, it is found that the application of liquid biological fertilizer has a significant effect on increasing plant height, stem diameter, total leaf area, crown fresh weight, crown dry weight, root fresh weight, root dry weight, and biomass weight, by giving a dose of liquid biological fertilizer of 20 L/ha to increase the best growth and production with application time can be used at any time in the vegetative phase of pakcoy plants recommended at 7 days after transplanting.