Bangladesh agriculture heavily depends on chemical fertilizers and pesticides. Application of these compounds over a long period resulted into poor soil fertility, human and animal health hazards, disturbed eco-balance, all leading to low productivity, soil, water and air pollution. Moreover, the cost of agriculture has increased manifold with declining yield levels and growing dependence on market for purchase of chemical fertilizers and pesticides. Hence the most urgent concern is to make judicious use of chemical inputs and application of bio-products so as to ensure minimal damage to the environment without any reduction in yield of crops. Food security is also challenging considering the climate change, land degradation and natural disasters. Until... |