EFICIÊNCIA DO HÚMUS DE MINHOCA NO DESEMPENHO DO MILHO CRIOULO NO NORDESTE PARAENSE

Nelson KEN NERUSAWA NAKAKOJI, Ítala Duam Souza Narusawa, Cleison Freitas da Silva, Cícero PAULO FERREIRA, Gilberta Carneiro Souto
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Abstract

The vermicoposting is a type of composting that uses earthworms in addition to the natural microorganisms to degrade organic matter. Earthworms feed on organic matter and transform it into humus, is a noble fertilizer with expressive amounts of all readily assimilable nutrients to the plants. There are reports of the positive effects of earthworm humus on the most diverse crops cultivated by farmers. When humus is produced under minimally controlled conditions, it takes advantage of many residues and organic wastes on the properties, such as manure and vegetable debris, which can in many cases meet the need for fertilizer in a small or medium-sized garden, especially under the conditions of ecologically based farms. In doing, so this study aimed to evaluate the efficiency earthworm humus in the fertilization of maize landrace cultivars (Zea mays L.). The experimental used was completely randomized designer (CRD), the used treatments had been: T0 (control treatment), T1 (2 kg of humus/m2), T2 (4 kg of humus/m2), T3 (6 kg of humus/m2) e T4 (8 kg of humus/m2). Each treatment had 5 replications, totaling 25 plots. As a result, T3 treatment showed higher increment in all evaluated parameters of the culture. The earthworm humus by providing an increment in the production of maize landrace is an applicable option and maybe an alternative fertilizer; the dosage of better agronomic performance for maize landrace cultivar was 6,59 kg/m2).The maize landrace cultivation showed a better performance of earthworm humus than oleraceous such as jambu (Acmella oleracea[(L.) R. K. Jansen].
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