Kajian Dosis Pupuk Organik Kotoran Kambing Terhadap Mixed Cropping Cabai Merah Besar (Capsicum annum L.) Dan Terong Ungu (Solanum melongena L.)

Study of Organic Fertilizer Dosage of Goat Dung on Mixed Cropping of Large Red Chili (Capsicum annum L.) and Purple Eggplant (Solanum melongena L.)

Abstract

Indonesia as an agricultural country with an important agricultural sector for the national economy faces constraints such as limited land and land conversion, so that diversification through a double cropping system is an efficient solution to maximize land, improve soil quality, and support the activity of microorganisms that accelerate decomposition and the availability of essential nutrients. This study aims to examine the effect of various doses of goat manure organic fertilizer on the growth and yield of large red chili (Capsicum annuum L.) and purple eggplant (Solanum melongena L.) in a mixed cropping system. The research was conducted at the Tohudan Seed Garden, Karanganyar, Central Java, from January to June 2025. The research design used was a Completely Randomized Block Design with two factors: namely plant type (chili monoculture, eggplant monoculture and mixed cropping) and goat manure fertilizer doses (0, 10, and 30 tons/ha), each replicated three times. Observed parameters included plant height, number of leaves, number and weight of fruits per plant, number and weight of fruit per plot and fruit volume. The research results showed that a dose of 10 tons/ha of goat manure resulted in the highest growth and production results in a mixed cropping system. Mixed cropping systems have been shown to increase land use efficiency and nutrient utilization. Goat manure has been shown to improve soil fertility and crop yields, and can be an environmentally friendly fertilizer alternative to support sustainable agriculture.