In farming, farmers have to use fertilizer for plants; control weed, insect, harmful microorganisms such as fungi, bacteria, viruses,… Corresponding to this farming process, chemicals are synthesized such as chemical fertilizers, herbicides, fungicides, and antibiotics. They widely used and exceed the limit safety for human health and environment, particularly ecologic imbalance. That means that farmers have to “ spend a lots of money” to produce foods and then people spend one more “cost” to resolve environmental pollution consequence, productivity, more disease …! Therefore, let’s return to sustainable farming practices base on organic – soil – crop interaction through organic matters selecting together with Bio A+ Company.