ISSN: 1659-2751



Effect of Compost Produced from Pineapple Leaves and Bokashi Produced from Cattle Manure on the Growth of Banana Plants


About 45 000 hectares of pineapple are currently grown in Costa Rica and they produce about 300 Mg/ha of aerial biomass residues. Compost production of pineapple aerial biomass is a way to manage those residues. An experiment was conducted to evaluate and compare the effect of two organic fertilizers, compost produced from pineapple aerial biomass and bokashi produced from cattle manure, on biomass production and nutrient uptake of banana plants (Musa AAA subgroup Cavendish clon Gran Enano). The experiment was conducted in a completely randomized factorial design, with a 2×4 arrangement, compost and bokashi applied at rates of (0, 5, 10 and 20) Mg/ha, replicated four times. The experimental units were vitro banana plants which were grown for 19 weeks. The rate of 20 Mg/ha of compost and of bokashi produced the highest number of leaves and the largest height, aerial and total biomass. The rates of 10 Mg/ha and 20 Mg/ha produced the largest pseudostem diameter and root biomass. The rate of 20 Mg/ha of compost and of bokashi produced higher amounts of C fixation and N, K and Ca uptake. No significant differences in P, Mg, Cu and Zn uptake were observed between rates of 10 Mg/ha and 20 Mg/ha. The higher aerial and total biomasses produced with the rate of 20 Mg/ha of compost and of bokashi were attributed to the larger amounts of fixed C and higher uptake of N produced with this rate and they provided for better transplant conditions.

Key words: absorption, bokashi, compost, banana cultivation, cattle manure, pineapple leaves, nutrients, C:N ratio.

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