nowadays, agriculture rely very much of synthetic chemical fertilizers and pesticides which are resulting in a dramatic effect on humans. More than 90% of US corn farmers rely on herbicides to control weeds. Another issue, is the consequences of modern agriculture on soil. The annual costs of public and environmental health losses to soil erosion exceed 45$ billion. On the other hand, organic agriculture is the aim to improve plant nutrition, preserve soil and water resources. Over all, it would not only improve the environment but also farm economies.
According to some experimental design of three cropping systems: conventional cropping, organic animal-based cropping, and organic legume-based cropping. The results and economics of organic systems compared with conventional systems seem to vary in a function of crops, regions and technologies used in the experiment. Not to mention that improvement in all of the land systems, water conservation and biodiversity... were greater in the organic systems than in the conventional systems.
Overall, organic technologies when used in agriculture result in an increase in soil organic matter and an abundance in biomass which conserve soil and water resources for drought years.
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