The nutritional requirements of vegetables have caused losses to small and medium-sized family farmers in terms of reduced productivity and food security in society. In this sense, the objective was to evaluate the development of okra (Abelmoschus escurentes L.) and cucumber (Cucumis sativus L.) plants, using sheep manure associated with phosphate rock and gliricídia and the quantification of the levels of N, P and K in plant structures. The experiment was conducted at the Federal Institute of Science and Technology of Roraima - Campus Novo Paraíso, in a greenhouse, using pots with a capacity of 6 L-¹, filled with soil (Neosolo) collected from the 0-20 cm layer. The experimental design was a randomized block, with treatments arranged in a 2x2 factorial, composed of two levels of gliricídia (without gliricídia (S / G) and (with gliricídia (C / G) and two levels of phosphate rock (without rock) (S / R) and (with rock (C / R), with four repetitions, being distributed in the blocks in a completely randomized way. A dose of sheep manure, corresponding to 25 t ha-1, was added to the pots. The variables determined in the study were: plant height (cm), stem thickness (mm), number of leaves, fruit diameter (mm), fruit length (cm), fruit weight (g) and the contents of N, P and K in the plant and in the fruits The results found for the different treatments showed no differences It was observed that the standardization of the fertility of the pots directly interfered in the statistical results, this way, the farmers can renounce the use of the leaf of the gliricídia and of the rock phosphate, as long as he has sheep manure available.
O tambaqui representa 98% do total de peixes produzidos em cativeiro no estado de Roraima. O município de Amajari é destaque na produção nacional, sendo o principal polo produtor de pescados de cultivo do estado. Fatores como variações no clima, incidência de doenças e comportamento dos preços nos mercados, aliados ao baixo nível de conhecimento técnico, principalmente dos pequenos produtores, torna necessária a difusão de técnicas e ferramentas com a finalidade de melhorar as atividades operacionais dentro de uma piscicultura. Com isso, o uso de ferramentas computacionais, como por exemplo planilhas eletrônicas, pode ser útil para melhorar a organização das informações dos recursos utilizados na produção, com a possibilidade de realizar um planejamento e decisões estratégicas conforme a realidade da fazenda. Sendo assim, o objetivo deste trabalho é desenvolver um programa utilizando a linguagem de programação Visual Basic for Application (VBA) que permita ao usuário realizar o acompanhamento de sua produção por meio de um ambiente personalizado a fim de melhorar práticas dentro de uma piscicultura. O trabalho foi dividido em duas etapas: elaboração da planilha eletrônica no ambiente Microsoft Excel e desenvolvimento do software de acompanhamento. Os parâmetros de produção foram definidos tendo como base os principais índices zootécnicos utilizados na literatura. Para o desenvolvimento desse sistema foram elaborados códigos de programação em VBA e formulários para interação entre usuário e software. O programa desenvolvido é formado por cinco abas, sendo elas: “Cadastrar povoamento”, "Cadastrar acompanhamento”, “Consultar viveiro”, “Editar viveiro” e “Encerrar viveiro”. Assim, esse sistema permite que o produtor cadastre, consulte, visualize e imprima os dados referentes ao acompanhamento de sua produção, possibilitando que técnicos e produtores implementem em suas pisciculturas o gerenciamento zootécnico por meio ferramentas computacionais, resultando em melhores práticas e atividades gerenciais.
Quantitative assessments of the population density of the microbial community in soils are important to establish ecological relationships that occur in the soil and to identify factors that influence the management of agroecosystems. Therefore, the objective was to quantify the cellulolytic fungi present in the soils of three use and management systems in the Amazon. The studied areas consisted of intercropped cultivation with gliricidia, orange and banana; area with orange and forest essence and native forest area. In each area, soil samples were collected at depths of 0-10 and 10-20 cm, placed in sterile plastic bags, duly identified, and stored in a thermal box and later in a cold chamber (4 ºC). The quantification of cellulolytic organisms was obtained by suspending the soil, using a specific culture medium. The cultures were incubated in a B.O.D oven at 28°C for 37 days. The estimate of the number of viable cells was made using the most likely number (MPN). The results show that the soil with the gliricidia, orange and banana intercropping has a higher population of cellulolytic microorganisms, this group is strongly influenced by the local vegetation cover, thus proving to be an alternative for intercropping systems with agricultural crops, providing a greater biodiversity of microorganisms in the soil, in addition to helping to provide nutrients for the species.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.