ALVES, E. S.; http://lattes.cnpq.br/2745049127940271; ALVES, Eryques Saldanha.
Résumé:
The conventional agricultural model of production is economically the most viable,
however, it is mainly responsible for negative impacts on the environment and the
individuals that compose it. In this context, the need arises to adopt new
techniques that allow comparable production, in such a way that it conserves
natural resources and reduces negative impacts on the environment. The objective
was to evaluate thegrowth and production of carrots under periods of shading and
organic fertilization. The experiment was carried out in the field, at the
Experimental Farm, belonging to the Center for Agro-Food Science and
Technology (CCTA), at the Federal University of Campina Grande (UFCG),
Pombal-PB, from May to August 2022. Theexperimental design was in randomized
blocks, with four replications in split plots. The treatments were composed by the
combination of two sources of organic fertilization (manure and biofertilizer) and
five shading periods (Full sun; 0-90; 0-30; 30-60 and 60-90 days, respectively).
Each was composed of 100 plants, 60 of which were useful plants. The use of
bovine manure under and shading from 0 to 90 days promotes reduction in the
root diameter of carrot cv. Brasília Irecê at 90 days after sowing. Cultivation under
shading from 0 to 30 days with the use of manure promotes greater accumulation
of fresh root mass of carrot cv. Brasília Irecê, 90 daysafter sowing. Manure and
management under full sun conditions promoted the highest accumulation of dry
2 mass of carrot leaves, at 90 days after sowing.
