Abstract

RESENDE, Francisco Vilela; SOUZA, Luciano Soares de; OLIVEIRA, Paulo Sérgio Rabello de  and  GUALBERTO, Ronan. Efficiency of mulching on soil moisture and temperature, weed control and yield of carrot in summer season. Ciênc. agrotec. [online]. 2005, vol.29, n.1, pp. 100-105. ISSN 1413-7054.  http://dx.doi.org/10.1590/S1413-70542005000100012.

The effects of different mulches were evalueted on carrot culture, cultivar Brasilia, in a experiment carried out at Marilia, São Paulo State, Brazil, from september to december/1998. The experimental design was a randomized block with four replications and size plots of 2 m². Wood dust, wood chips, dry grass (Cynodon spp.), rice straw and control (soil without cover) were tested  and their effects on the soil hidrothermal regime, weed control, growth and yield of carrot were determined. Mulching materials showed better carrots plants development, mild soil temperature (3,5°C less control trait) and better soil moisture (2,3% high control trait). Dry grass and wood chips showed lower weed infestation and dry grass, wood chips and wood dust increased carrot stand.  Mulches with rice straw and wood increased carrot yield (112,6 e 99,6 t/ha respectively). Mulching use is technically and economically viable for carrot growing, mainly in small areas and in organic farms.

Keywords : Daucus carota L; mulching; weeds; yield.