Mengcheng County, Anhui Province in this year's maize production, the full implementation of the "diet" green production, fertilizer zero growth action to implement green food production increase efficiency.
First is zero growth fertilizer action. Mengcheng County is zero growth in the province's fertilizer operations demonstration counties, the county's corn acreage this year, 150 acres, all taken soil testing and fertilizer technology, including the promotion of sulfur and zinc special fertilizers and 56.25 acres of corn, corn planting area accounts for the total use area 37.5%; farmers than conventional fertilization (15-15-15 = 45% of the fertilizer 50 kg) / acre lower fertilizer 10 kg / mu, reduce 7.5 kilograms of pure nutrients / mu, reduce the amount of nearly 4,219 tons of corn basal pure nutrients.
Second, the implementation of maize seed and fertilizer with the broadcast technology. The county board of corn stubble kind of fat with the broadcast 140 acres, acres of chemical fertilizers up to 35-45 kg, compared to conventional basal applicator reduce the amount of acres 5-15 kg, mu reduce the amount of fertilizer on average about 20 percent, reducing administration acres 4-5 kg ​​of pure nutrients, fertilizer county reached 6300 tons of pure nutrients, fertilizer utilization is increased.
Third, the implementation maize controlled release (vector) fertilizer technology. Corn this year to promote the application of controlled release (vectors) of more than 8,000 tons of fertilizer, the use of an area of ​​20 million acres, fertilizer use efficiency can be improved effectively, to achieve efficiency of the section.
Fourth, to promote soil organic matter carried out technological upgrading. Increase agricultural waste animal husbandry farms ecological recycling, reduce non-point source pollution, turning waste into treasure, improve soil structure, increase soil organic matter, since this year, the county's use of manure 9,500 tons, 2,600 tons of organic fertilizer project promotion.