A sustainable agriculture and water-saving irrigation technology and equipment problems. Of water scarcity. Water per year 30 billion m3, drought area of 20 million hm2, the country has 80 million rural drinking water. Therefore, we must find a way out from the water, develop water-saving agriculture. Currently, the promotion of water-saving irrigation technology and equipment has matured, but water-saving irrigation equipment, there are some issues to be resolved. First, China's water-saving irrigation machines and mobile machine nozzle, joint form basically the same, you can choose range of small, bottle plastic sprayer rotating nozzle uneven wear. Wind nozzles, special nozzles to be research and development. Secondly, micro-irrigation technology in the domestic micro sprinklers, drippers, various forms dropper with fewer species. System complete with control equipment, filters, fertilizer, injectors, and other key technology node blockage need to overcome. Third, water-saving devices, "three" low level, but also to further improve standards.
Two sustainable agriculture and land conservation technology and equipment problems. Of land conservation imminent. According to statistics, currently expanding desertification area has reached 1,533,000 square kilometers, accounting for 15.9% of the land area. Erosion surface increase, 39% of the country's total area; land quality declining arable land 59% of phosphorus deficiency, 23% potassium, 14% lack both phosphorus and potassium, 30% nitrogen deficiency province's arable land, China low-yielding fields representing about 70% of arable land; land resources severely damaged due to various human factors, derelict land total 200 million acres; national grassland each year 30 million mu to 4000 mu degradation, desertification grassland (50%); 70 % arid and semi-arid grassland. Nearly 10 years, the national forest area decreased by 23? 1%, the agricultural ecological environment deterioration, reduced water storage capacity. Land pollution is worsening. From industrial "three wastes" pollution, contaminated land 6,700,000 hm2; affected by acid rain harm agriculture 2,660,000 hm2; national industrial solid waste and municipal solid waste a total area of 5.36 million hm2, which accounted for farmland 40000 hm2. As well as from the pollution of agriculture itself, mainly excessive application of pesticides, resulting in changes in soil properties, soil fertility decline and so on.
To this end, research and development of grass and trees terracing of special machinery and equipment development project is imminent. Promotion and development of new ultra-low-volume knapsack power sprayer spraying (powder) device, so that the liquid droplet diameter down to 15μm ~ 75μm, reduce pesticide use, improve the efficacy and control effect; development of new agricultural film recycling machinery and equipment, prevention of pollution of agricultural plastic film .
Three dimensional cultivation of sustainable agriculture and technical equipment problems. Stereoscopic three-dimensional cultivation of agricultural cultivation, including three-dimensional cultivation, livestock integration, planting combination, courtyard economy mode. Machinery and equipment in this regard very little mechanization intercropping is a major problem, this is not caused by power machine and supporting tools; farming raise land farming techniques and equipment developed much, much less be able to use; courtyard economy is on the rise among , there is no typical mechanical equipment developed. Stereoscopic both sustainable agriculture cultivation technology and equipment needed for development, but also the "three rural" market need to develop products.
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