Mustard cake is widely used as a fertilizer for flowering and vegetable plants. Mustard oil cake fertilizer is very rich in protein. It provides many micro nutrients to your garden plants. It also prevents many diseases and make your garden plants very healthy.In addition to releasing nutrients, as organic fertilizers break down, they improve the structure of the soil and increase its ability to hold water and nutrients. Over time, organic fertilizers will make your soil–and plants–healthy and strong.