Growth of raphanus sativus l. with weeds plantago media l. and polygonum nepalense meins

Abstract

The growth of radish (Raphanus sativus L.) was analyzed with plantain (Plantago media L.) and gualola (Polygomun nepalense Meins) weeds. The experimental design was a randomized complete block design with six treatments and three replications. The treatments were fertilization levels (0%, 50% and 100% fertilization combined with clean and weedy cultivation; T1 to T3: three fertilizations with weedy cultivation and T4 to T6: three fertilizations with clean cultivation, respectively). Biomass, leaf area, crop growth rate (CGR), leaf area index (LAI), net assimilation rate (NAR), relative growth rate (RGR), weed cover, frequency and density were evaluated. The highest dry biomass and leaf area of ​​radish were recorded in treatment T5 with values ​​of 4.573 g.plant-1 and 4.573 cm2 respectively in week nine, while T3 recorded 3.17 g.plant-1 and leaf area of ​​851 cm2, with no significant differences. The highest CGR was reached by radish in T5 (0.48) in week 7 and T4 (0.62) in week 9, and LAI (0.28) in T6. The CGR and TAN varied for all crop and weed treatments. The weed species present in the crop: Plantago media maintained the highest density throughout the crop period, reaching more than 2000 individuals/m2 and a frequency of 94%. Weed cover in the weedy treatments reached 60% (T1). The best development of radish crops according to evaluated parameters was presented by T5.