Studies on the production of important vegetable crops like tomato, eggplant, Bean , Onion Potatoes and okra have yielded very good results .
Another study was made on the growth impact of earthworms ,Vermicompost promoted excellent growth in the vegetable crop with more flowers and fruits development.
But the most significant observation was drastically less incidence of “Yellow Vein Mosaic”, “Color Rot” and “Powdery Mildew” diseases in worm and vermicompost applied plants .
Study was made on the production of potato by application of vermicompost in a reclaimed sodic soil in Sohag , Egypt.
The overall productivity of potato was significantly high on vermicompost applied. The sodicity of the soil was also reduced and nitrogen (N) contents increased significantly . Studies made on the effects of vermicompost & chemical fertilizer on the beans it was found that all growth & yield parameters e.g.
total chlorophyll contents in leaves, dry matter production, flower appearance, length of fruits and fruits per plant, dry weight of 100 seeds, yield per plot and yield per hectare were significantly higher in those plots which received vermicompost either alone or in combination with chemicals.
In addition to increasing plant growth and productivity, vermicompost may also increase the nutritional quality of some vegetable crops such as tomatoes , cabbage , spinach,, strawberries and lettuce