Yield and Profitability of Organic Radish Cultivation with Different between-Row Spacings

This study aimed to evaluate the yield and profitability of organic radish cultivation using different between-row spacings. The experiment was conducted at the Seridó Ecological Station in Rio Branco – AC in a randomized block design with five between-row spacings (0.05, 0.10, 0.15, 0.20, and 0.25 m) and four replications. Each plot consisted of four rows transverse to the plant bed at a density of 16.7 plants m-¹, spaced 0,06 m from one another, with the planting densities of 316.7, 255.7, 216.7, 166.7, 116.7, and 66.7 plants m-2, respectively. The following agronomic variables were evaluated 35 days after sowing: shoot biomass, root yield, harvest index, root diameter, mean root mass, dry shoot mass, and the economic variables of mean total cost, cost-to-benefit ratio, yield to cover total costs, profitability, total income, net income, total cost, family labor remuneration, and profitability index. The smallest between-row spacing, increasing the planting density, increased the yield and reduced the root diameter without changing the mean root mass and the dry shoot mass. The increase in planting density increased the total cost and reduced the mean total cost, increasing the economic indicators of B/C ratio, profit rate, net and total income, profitability index, and family labor remuneration.