Optimization of Cocoa Rootstock Seedling Growth (Theobroma cacao L.) MCC-02 Clone Using KoHeA+MF Organic Fertilizer Application
Abstract
Cocoa (Theobroma cacao) is a significant plantation crop with considerable economic importance. The beans derived from cocoa are abundant in antioxidants, which play a crucial role in cellular protection and the enhancement of endorphin levels. Given the increasing demand and favorable pricing, the future of cocoa cultivation appears promising. A critical factor influencing cocoa production is the quality of seedlings, particularly the rootstock. The growth of cocoa seedlings is affected by various elements, among which soil fertility stands out as a vital component of the planting medium. The necessary properties for optimal growth can be sourced from organic materials. One such organic amendment is KoHeA + MF organic fertilizer, which has demonstrated effective growth and yield improvements in pak choi. This study aims to formulate recommendations for an optimal planting medium composition that incorporates KoHeA + MF organic fertilizer for the nursery of cocoa rootstocks, ultimately producing high-quality seedlings. The research was conducted over a six-month period, from May to October 2024, at the experimental garden of the Payakumbuh State Agricultural Polytechnic, situated at an elevation of approximately 500 meters above sea level. The observed variables included leaf count, plant height, leaf length, and leaf width. The findings indicate that the most effective combination for cultivating the cocoa variety MCC-02 is a soil to KoHeA + MF ratio of 3:1.
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