Lettuce and carrot consortium, with and without adoption of dead coverage in Paragominas-PA

Abstract

The form of cultivation of vegetables is essential for increasing productivity, considering a scenario of greater food consumption. Therefore, the study aimed to evaluate the consortium of lettuce (Lactuca sativa L.) and carrots (Daucus carota L.), with and without mulch in the municipality of Paragominas - PA. The experiment was conducted in the experimental field of the Federal Rural University of the Amazon - UFRA, in the municipality of Paragominas - PA. The experimental design used was completely randomized in a 3x2 factorial scheme with 4 replications. The treatments consisted of three cultivation systems: single lettuce, single carrot and a mix of lettuce and carrot. And two forms of management: with and without mulch. For lettuce, the parameters evaluated were: plant height; number of leaves per plant; total fresh mass (MFT); fresh leaf mass (MFF); fresh diameter mass (MFD); total dry mass (MST); dry leaf mass (MSF); dry diameter mass (MSD); leaf area (AF); productivity and morphophysiological index. For carrots, length, diameter, root weight, macro and micronutrients were evaluated. The efficiency of the consortium was assessed using the efficient land use index. The single system without cover obtained a higher rate of spontaneous plant infestation and stood out in relation to weight and productivity parameters. The lettuce morphophysiological indices had a significant effect on the interaction between cultivation and management. For the carrot, there was a significant effect in relation to the weight and productivity variables. In the evaluation of macronutrients and micronutrients, K and Fe stood out, respectively, with the highest root concentration averages. The index of efficient use of the land demonstrated that the consortium of lettuce with carrots was effective in the use of the cultivated area.