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Tilling and biomass production of Chrysopogon zizanioides (L.) submitted to cut...
Rocha, Jaídson Gonçalves da; Coelho, Fábio Cunha; Lelis, Rosana Teixeira; Santos, Gabriela Carvalho de SouzaVetiver grass (Chrysopogon zizanioides (L.)) has high agronomic potential and possibilities of use as a source of green manure. Thus, the objective of this work was to evaluate cutting heights of vetiver grass, fertilized in coverage with doses of manure, to use it as a cover plant in organic agriculture. The experiment was carried out under field conditions, in Campos dos Goytacazes, Rio de Janeiro. The experi...
Corn genotypes for baby corn production in an organic cultural system
Nascimento, Maxwel Rodrigues; Santos, Paulo Ricardo dos; Coelho, Fábio Cunha; Costa, Kleyton Danilo da Silva; Oliveira, Tâmara Rebecca Albuquerque deBaby corn is the name given to the female inflorescence of maize before pollination, that is, it is the ear of corn in development harvested two to three days after the issuance of the styles-stigmas. With a fine, delicate texture and sweet taste, the baby corn has become a promising product for the domestic and foreign market, especially since in Brazil the processed product was mostly imported from Thailand. ...
Rural workers` health related to the use of pesticides in developing and develo...
Coelho, Enilce Maria; Coelho, Fábio CunhaThis review aims to examine the issue rural workers' health and the use of pesticides in its various aspects, especially emphasizing how that is doing in developing and developed countries. We found than the rural workers pesticide contamination problems occur both in developing countries as in developed countries. We concluded than to ensure the rural workers’ health when they use pesticides becomes necessary ...
Factors that affect sprouting and tillering of sugar cane
Manhães, Carmen Maria Coimbra; Garcia, Ricardo Ferreira; Francelino, Francisco Maurício Alves; Francelino, Helenilson de Oliveira; Coelho, Fábio CunhaCurrently, Brazil is the world's largest producer of sugar cane. Various factors can interfere in the productivity and technological quality of sugar cane, which in the end, represent the integration of the different conditions to which the culture was exposed. Some of the most relevant aspects for good final yielding or stand of plants are related to planting practices. These practices directly affect the abil...
Minimilho (Zea mays L.): nitrogênio, fósforo e manejo afetando sua produtividad...
Bastiani, Marcos Luiz Rebouças; Coelho, Fábio Cunha; Freitas, Silvério de Paiva; Oliveira, Anna Christina Sanazário deObjetivou-se com esse este trabalho avaliar a incidência de plantas daninhas e a produtividade do minimilho submetido a diferentes doses de nitrogênio, associadas a duas doses de fósforo e a diferentes manejos de plantas daninhas. Foi conduzido um experimento em condições de campo. Seguiu-se esquema fatorial de 2 x 3 x 5, cujos fatores e níveis foram os seguintes: doses de fósforo, mane...
Dynamics of populations of weed in the sugarcane in system no-tillage and conve...
Duarte Júnior, José Barbosa; Freitas, Silvério de Paiva; Coelho, Fábio CunhaThe research aimed to evaluate the incidence and the populations dynamics in sugarcane crop in no-tillage system in comparison to the conventional one. The experimental design was completely random, using four replications, in a factorial 4x2 outline. The treatments were: (I) – sugarcane PC incorporated to spontaneous vegetation with manuring and (II) – the same procedure as in I without manuring; (III) – sugar...
Economic and risk evaluation of the soybean production in rotation with sugarca...
Lima, Edson Alves de; Coelho, Fábio Cunha; Bastiani, Marcos Luiz Rebouças; Golynski, Adelmo; Ponciano, Niraldo José; Lima, Andréa Aparecida deThe objective of the study was to calculate the soy cultivar yield in systems of conventional sowing (SCS) and direct sowing (SDS) in Campos dos Goytacazes and Quissam・cities, in North Fluminense Region in the state of Rio de Janeiro, through Net Present Value (NPV) and the Internal Return Rate (IRR), identifying, by means of the sensitivity analysis, the most significant items to determine yield, besides estim...