Analisis pupuk organik MA-11 dan Jatropha curcas pada pertumbuhan kopi Liberika pada lahan terkontaminasi cadmium

Abstract

Jambi is one of the provinces that places coffee plants as a leading commodity in the region. One type of coffee that is a mainstay of Jambi Province is Liberika Tungkal Komposit, now better known as Liberika Tungkal Jambi. Composting requires the regulation and control of natural processes so that compost can form more quickly. This can be achieved by creating a balanced mixture of materials, providing sufficient water, managing aeration, and adding activators. MA-11 is one of the activators capable of rapidly breaking down all organic materials and enhancing the nutritional content within them. The specific objectives of this study are (1) to obtain quality Liberika coffee seedlings by planting in combination with the hyperaccumulator plant Jarak, using solid organic fertilizer based on Microbacter Alfaafa – 11 (MA-11). (2) This research is expected to provide information for the development of superior Liberica coffee plants in particular, and other types of coffee in general, which can be cultivated on land contaminated by liquid waste from the Batik industry. This experiment utilizes a completely randomized design in factorial form, where the first factor is P, consisting of p1 = 2 kg of cow manure and p2 = 1 kg of cow manure. The second factor is K, which consists of (k0) without Jarak, (k1) 1 Jarak, and (k2) 2 Jarak. Thus, six treatment combinations are obtained. Each treatment combination is repeated five times, resulting in a total of 30 experimental units.