Desempenho agroeconômico do coentro em diferentes densidades de semeadura sob manejo orgânico

Abstract

The Coriander is a very cultivated crop in the brazilian Semiarid region, however, researches that seek to improve crop management practices, such as determining the density of sowing, which may allow higher yields, are still scarce. Based on the above and aiming to contribute to the increase of coriander production yield under organic production conditions, the present study was developed with the objective of identifying the density of coriander sowing that would provide greater productivity and economic profitability. The work was carried out in the Horticulture Sector of the Federal University of Ceará. A randomized block design with five treatments (2; 4; 6; 8; 10 g m-1 linear groove) and four replications were used. The evaluated variables were plant height, number of leaves, root length, number of plants per m², fresh and dry mass of shoot and root and yield. Besides these, the economic evaluation of the treatments. The Seed density interferes with coriander productivity and yield (p <0.05). Was observed growing linear, behavior as sowing density increased, for the variables shoot length (CPA), number of plants and fresh and dry mass of the root (MFR and MSR). For root length (CR) and leaf numbers there was a decreasing linear behavior. For the productivity and fresh and dry mass of the shoot (MFPA and MSPA) it was observed the adjustment of a quadratic function, that is, for these one can identify an intermediate density capable of providing better conditions to obtain the highest values of these characters. The sowing density of 5.4 g.m-1 is the one that allows obtaining the best results of productivity and economic viability for the production of coriander