Organic agriculture system is an economic model worth popularizing.

Modern organic agriculture is the combination of traditional agriculture, innovative thinking and advanced technology. This new agriculture based on innovation and science provides a new method for the cultivation of soil nutrients, the control of diseases, insect pests and weeds and the increase of yield. The organic agriculture system based on science provides plants with basic nutrients such as nitrogen, phosphorus and potassium, which are far more economical than chemical fertilizers, such as green manure, compost, natural minerals and many other resources.

First, organic agriculture has stronger adaptability to poor growth conditions. According to the fourth Assessment report (IPCC2007) released by UNFCCCIPCC and other data, the earth is being challenged by increasing extreme weather conditions such as droughts and torrential rains, and even if greenhouse gases do not cause new pollution to the planet tomorrow, it will still take us hundreds of years to change the damage caused by greenhouse gases. Published research data show that in the face of extreme meteorological conditions that may occur in the future, organic agriculture system has stronger adaptability than conventional agriculture system, and its yield will also be higher than that of conventional agriculture.

Second, organic agriculture can improve the utilization rate of water. The study shows that due to the good soil structure and the high content of humus and other organic matter in soil, the water use efficiency of organic agriculture system is higher than that of conventional agriculture. A 10-year study by the Rodale Institute, the first organic agriculture research institution in the world, which was built in the 1940s, shows that the plots that apply organic manure and plant green manure significantly improve the soil water holding capacity, infiltration rate and water retention capacity.

Third, the ecological function enhancement method can enhance the biological diversity in the system. Ecological function Enhancement (EFI) makes use of functional diversity to optimize ecosystem services. In such an organic production system, ecological processes are used rather than enhanced chemical measures. Ecological function strengthening method is to give full play to the scientific application of agricultural ecology to actively promote the diversity of agro-ecosystem, so as to provide ecosystem services. With the passage of time, the superiority of organic agricultural production system will be reflected not only in the economy, but also in the saving of labor.

Fourth, increase the crop yield of traditional small farmers. The research on the good organic agricultural production system shows that the traditional small farmer production system is a system with higher crop yield. Because the vast majority of the world's farmers are small farmers, the above information is particularly important. Allowing small farmers to adopt the following practical techniques of organic agriculture with a good scientific basis in traditional farming methods can significantly increase their crop yields: 1. Improve soil nutrients by recycling organic matter (carbon) and proper mineral balance. two。 Adopt advanced pest control measures. 3. The water use efficiency was improved by increasing the content of soil organic matter (SOM). 4. Advanced weed control methods were adopted. 5. The ecological function enhancement method is used to enhance the biological diversity in the system.

In a word, the organic agriculture system based on science is an appropriate economic model and worth popularizing.