Viabilidade agroeconômica do consórcio de hortelã com coentro fertilizado com jitirana mais esterco bovino.

Abstract

The intercropping of plants comes as one of the most suitable methods for the practice of olericulture, in agroecological molds, with innumerable advantages in the environmental, productive and economic aspect. Two experiments were conducted at the Fazenda Experimental Rafael Fernandes, in the Alagoinha district, rural area of Mossoró-RN, with the goal of evaluating the agroeconomic viability of the mint intercropping with coriander fertilized with jitirana plus bovine manure. The first experiment was conducted in the period from 08/11/2015 to 05/11/2015 and the second experiment was in the period of 11/27/2015 to 03/22/2016, in a randomized complete block design with the treatments arranged in 2x4 factorial scheme, with three replicates. The first factor consisted of single and intercropping of mint and coriander, and the second factor composed of the different doses of the jitirana mixture with bovine manure (0,0, 1,0, 2,0 and 3,0 kg m-2 of bed). The cultivar "Mentha piperita" was used for the mint crop. For the coriander the cultivar "Verdão" was used. The evaluated characteristics for the mint crop were the following: biomass height, fresh mass, number of bunches, dry mass, oil content and yield. For the coriander culture the following characteristics were evaluated: plant height, number of stems plant-1, productivity, number of bunches and dry mass. Economic indicators were also used, such as equivalent area ratio (RAE), cost of production, gross income, net income, rate of return and profitability index. The use of jitirana plus bovine manure contributed to the increase of the productive characteristics of the intercropping in the two growing seasons, with a number of mint bunches of 17.6 and 5.8 at 3.0 and 2.2 kg m-2, respectively. For the coriander culture, the values were 16.5 and 15.3 m-2 sauces at the dose of 3.0 kg m-2, respectively. The equivalent area ratio obtained in the two experiments was 1.72 and 1.78, respectively. The highest economic efficiency of the intercropping was observed in the first growing season with the application of 3.0 kg m- 2 of jitirana plus bovine manure in an area of 100 m-2, with a gross income of R$ 3,761.00; net income of R$ 2,727.50; rate of return of R$ 3.64 and profitability index of 72.52%.