ISSN: 1659-2751



Evaluation of Humic Substances and Compost Prepared Using Stubble from Pineapple Plantations for the Reduction of Nematode Radopholus simili Populations in a Banana Crop


Costa Rica cultivates 45 000 ha of pineapple, generating 300 Mg/haof stubble. The aim of this study was to evaluate the efficacy of compost and humic substances, prepared ​​using pineapple stubble, on biomass production of banana andcontrol of the nematode Radopholus similis. A completely randomized design with nine treatments [compost (20, 25, and 30) Mg/ha, to humic substances (5, 10, 15, and 20) % (v / v), Vydate to 24 % and absolute control] and six repetitions was used. The experimental unit consisted of a vitro banana plant (Musa AAA Cavendish Valery clone). The plants were grown in the greenhouse for a period of 20 weeks. The compost pineapple biomass increased the number of healthy leaves, pseudostem diameter, plant height, and aerial, roots, and total dry biomass. There was no effect on nematode suppression by the compost and humic substances. It was demonstrated that the fertilizer produced had an important effect on the growth of banana plants.

Key words: composting, bananas cropping, Radopholus similis, remnants of pineapple, and humic substances.

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