Pengaruh Pemeberian Pupuk Kandang dan EM 4 terhadap Pertumbuhan Alpukat (Persea americana Mill.) di Lahan Marginal Labuhan Batu Selatan

Abstract

Marginal land can be used with an ecosystem approach strategy through improvement of soil fertility. Avocado Plant (Persea americana Mill.). is a profitable plant to grow. Avocado is a fruit that is in great demand by the public because the taste of the fruit is delicious and delicious. The purpose of this study was to obtain the appropriate dose of EM 4 and manure for the growth of avocado (Persea americana Mill.) plants in the marginal land of South Harbor. This research was conducted at the Aek Raso Nature Park (Elephant Training Center) Aek Raso Village, Torgamba District, Labuhan Batu Selatan Regency and was carried out in July October 2022. Using a Completely Randomized Factorial Design with 2 factors, namely the dose of manure (0 g, 500 g, 1000 g) and EM4 (0 ml, 10 ml, 20 ml, 30 ml) so that 48 treatments were obtained with 4 replications. The results showed that the interaction between the EM4 treatment and manure on the parameters of plant diameter, number of leaves, and fresh weight of the upper part of the plant had a significant effect on avocado plants and had no significant effect on the parameters of plant height, dry weight of the upper part of the plant, fresh weight of the lower part of the plant and the dry weight of the lower part of the plant. D3K1 treatment, namely 30 ml EM 4 dose and 500 g manure dose, gave optimal results on the growth of avocado (Persea americana Mill.) seedlings during 3 months of observation.