Abstract:

From the purpose, content, characteristics, principles, patterns and technology of eco-agriculture with high efficiency, the theory and practice of eco-agriculture with high efficiency had been analyzed generally and systematically. The results showed that: (1) the concept of eco-agriculture with high efficiency was purposed in 1991 in China; (2) Eco-agriculture with high efficiency emphasized on the ‘high efficiency’, ‘ecological’ and ‘combine’; (3) Eco-agriculture with high efficiency had a lot of characteristics with more organisms, good environment, good structure, strong function, good quality, high efficiency, low-carbon emissions, and sustainable development; (4) The principle of the eco-agriculture with high efficiency with the increasing of output and efficiency lay with full use of land, three-dimensional use of sunlight energy, excess use of seasons, multi-layer use of moisture, high efficient use of fertilizer, symbiosis and complementation among organisms, ecological disaster-reduction, and recycling use of agricultural resource; (5) The typical modes of eco-agriculture with high efficiency were these: the three-dimensional use of agricultural resource, the type of biological symbiosis among organisms, the conjunction type of conglomerate, the type of the industrial extension, the technology-driven type, the type of the environmental improvement, the resource recycling type, and the type of the leisure travel; (6) The key technologies of eco-agriculture with high efficiency were these: the resources saving technology, the irrigation and fertilization regulating technology, the biological soil improving technology, the disaster prevention and reduction technology, the resource comprehensive utilization technology, the soil and water conservation technology, structural adjustment technology, the new energy development technology, the valley harnessing technology, and the current modern new high technology.