Composting of Some Dangerous and Toxic Weeds Using Eisenia foetida

The experiments were conducted to obtain compost from some toxic weeds by using vermicomposting and conventional methods. The weeds used in the experiment were congress grass (Parthenium hysterophorus Linn.), water hyacinth (Eichhornia crassipes) and bhang (Cannabis sativa Linn.). Total six sets of experiments were setup by using above materials. Three of them were test experiments and rests were control experiments. In all the test experiment 50 worms were introduced. The results show a high increase in nitrogen, potassium, phosphorus and a high decrease in organic carbon, C/N, C/P ratio in the experiment having Eisenia foetida. The otherwise toxic weeds used in this experiment are thus converted into compost with higher concentration of nutrients. (Journal of American Science 2010;6(3):1-6). (ISSN: 1545-1003).