Abstract

Carrots (Daucus carota L.) are vegetable plants grown throughout the year, the role of carrot plants that are important in fulfilling community nutrition has long been known. People start consuming carrots after knowing some of the health benefits contained in carrots. But the productivity of carrots in Indonesia is still low, one of the factors that causes the low yield of carrots both in quality and quantity is a disturbance of weeds. So far, information about the types of important weeds that are present in carrot planting is not yet known, even though this information is very necessary to determine weed control measures more effectively and efficiently, so we need existing weed diversity maps. This research was conducted using the quadratic method. Two locations of carrot plant areas as samples scattered at different altitude or topographic conditions were randomly selected in each sub-district. At each location, the sample was weighed diagonally for each plot of carrot plant using the iron squares of size 0.5 m x 0.5 m. Field data were used to determine: weed species, weed density, weed frequency, weed domination, importance value, summed dominance ratio, weed dry weight and species diversity index. The results showed that weed species found in the center of carrot cultivation in Majalengka Regency had 21 species. There were 13 species of broadleaved weeds, 6 species of grass weeds and 2 species of weed sedges. Dominant weed species for each observation area were different, where the dominant weed for Sukadana Village, Argapura Subdistrict was Drymaria villosa, the dominant weed for Cikaracak Village, Argapura Subdistrict was Artemisia vulgaris, dominant weed for Cipulus Semplo Village, Cikijing Subdistrict was Ageratum conyzoides, and weed the dominant for Cipulus Ciinjuk Village, Cikijing Subdistrict was Ageratum conyzoides. The community coefficient value was 48.96% which meant that the study area in Argapura Subdistrict and in Cikjing Subdistrict did not have the same weed population.