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Aguirre-Medina, JF; Mendoza-Lopez, A; Cadena-Iniguez, J; Avendano-Arrazate, CH. 2007. Effect of cocoa (Theobroma cacao L.) biofertilization in nursery with Azospirillum brasilense Tarrand, krieg et dobereiner AND Glomus intraradices Schenk et Smith. INTERCIENCIA. 32(8):541-546. Address: Cadena-Iniguez, J, Agustin Melgar 10,Col Salinas, Texcoco 56153, Estado Mexico, Mexico
Theobrorna cacao L. originated in America and has been associated with the development of various Indian cultures in the tropical forest. Its beans are used for the production of food, beverages and sweets. The demand of cocoa cultivated without agrochemical products has increased. Plant nutrition with microbial fertilizers is an alternative for increasing its organic production. In this experiment the contribution of two micro organisms to the development and nutritive characteristics of cocoa was determined under two soil conditions, treated with methyl bromide or untreated, in the Soconusco region, Chiapas, Mexico. The cocoa beans were inoculated with Azospirillum brasilense and Glomus intraradices, alone or in combination at sowing. Morphological and physiological characters, and the N-2, P and Call content in the vegetal tissue were recorded every 30 days for six months. The results indicate a differential response for soil condition and micro organisms in the production of dry matter Root and foliar lamina were the most affected organs. The inoculated plants showed a higher N-2 concentration. G. intraradices translocated more P in the untreated soil and more Ca2+ under either soil conditions.
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