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Intercropping system that involves planting multispecies between accumulator plants and cultivated plants is a way to improve the phytoextraction of heavy metals in agricultural land simultaneously. However, how the effect of accumulator plants on the growth and yield of cultivated plants has not been widely studied. This study aims to determine the growth and yield of vegetables intercropped with accumulator plants from the legume group, namely Crotalaria juncea L. The study was carried out using a randomized block design with one factor, namely Chinese vegetable monoculture (P1), bean vegetable monoculture (P2), and accumulator plant monoculture. Crotalaria juncea L. (P3), an intercropping system between Chinese cabbage and Crotalaria juncea L. (P4; and an intercropping system of beans and Crotalaria juncea L (P5). The results showed that in Chinese cabbage, monoculture planting produced biomass and crop yields. per plant and per plot was higher than the crops grown by intercropping. In the bean crop, monoculture and intercropping systems did not provide differences in biomass yield and fruit yield per plant and per plot. Crotalaria juncea L, which was grown in monoculture produced plant biomass and the yield of the stove per square is higher gi compared to those planted by intercropping. Crotalaria juncea L. intercropped with Chinese cabbage was able to accumulate more Pb in the roots, while Crotalaria juncea intercropped with chickpeas accumulated higher Pb in the stems. Crotalaria juncea plants grown in monoculture accumulated higher Pb than those intercropped with vegetables, so further research is needed to test the effective removal of Pb using other cropping systems.

This research aim to determine the effect of Mol of Chinese cabbage and cabbage to the growth of Ipomoea reptans Poir. The methods used was Randomized Complete Design consist of 4 treatments and 6 repetitions; P0: 0% Mol, P1: 5% Mol, P2: 10% Mol, and P3 15% Mol. The Data were analyzed used Analysis of Variance (ANOVA) followed by Duncan Multiple Range Test for differences among treatments‘means. The observations on Mol consist of pH, number of bacteria and number of fungi and the growth of Ipomoea reptans Poir. The result showed that the treatment P3 15% Mol gives effect on number of leaves, dry weight, shoot dry weight dan soil pH, but there’s no significant effect on height plant, wet weight, root dry weight, ratio of shoot and root, also to number of bacteria, number of fungi and pH of Mol. However, Mol of Chinese cabbage dan cabbage can be a fertilizer to growth of Ipomoea reptans Poir.

he research was conducted by observation on 5 plot kinds of cabbage planting. The plots consist of control plot with no planting Chinese cabbage, plot with planting Chinese cabbage as rotation plant on 38 day before planting of cabbage followed by manual eradication, plot with planting Chinese cabbage as rotation plant on 38 day followed by flooding for 14 days and soil tillage, plot with mixcropping Chinese cabbage on the early growth stage of the cabbage, and plot with intercropping of Chinese cabbage on 14 days before planting the cabbage. The results showed that planting Chinese cabbage as trap crop of the pathogen followed by eradication of the infected Chinese cabbage effectively controlled clubroot intensity and significantly restored the partial yields of the cabbage.