According to the demand and deployment of the "zero growth action plan" of the Ministry of agriculture and the "transfer Festival" of the Beijing City, in recent years, the Beijing Agricultural Bureau, the local fertilizer station, promoted the negative growth of chemical fertilizer in the whole city, and promoted the implementation of various technical measures for the zero growth of chemical fertilizer. In the first half of 2017, the amount of chemical fertilizer per mu per mu was used under the whole city. Reduction of 0.9 kg, fertilizer utilization rate reached 35%, and achieved remarkable results.

The effect of fertilizer reduction on soil formula and fertilizer was achieved. According to the principle of "ecological fertilization, safe fertilization and high efficiency fertilization", and the principle of "fine, subtraction, regulation and control", the application of fertilization to soil testing is deepened. Through project driving and policy guidance, fertilizer distribution enterprises and social service organizations are involved in technology and promotion services. The expanded formula fertilizer was popularized and applied. In the first half of 2017, the area was promoted to 1 million 492 thousand mu, and the amount of fertilizer per mu was 0.9 kg, the utilization rate of fertilizer was 35%, and the total fertilizer was 1294.7 tons.

The development of organic fertilizer instead of chemical fertilizer has made new progress. On the basis of the nutrient release rules of the main organic manure varieties such as chicken manure, cow dung, pig manure and mushroom residue, the field experiment on different fertility soils was carried out to determine the replacement rate of organic manure under the condition of maintaining the stability of the soil with different fertility levels. Through policy subsidies, more than 170 thousand mu of organic manure and bio organic manure replace chemical fertilizer technology in the grain fields of the suburbs of Beijing, vegetable fields in the outcrops, vegetable fields and facilities in the suburbs of Beijing, and 8 kg of chemical fertilizer instead of chemical fertilizer have been replaced, and a good demonstration and driving effect has been achieved.

The technology of water and fertilizer integration has greatly reduced the amount of chemical fertilizer. Around the integrated management model of fruit and vegetable, leaf vegetable, strawberry and fruit tree water and fertilizer, we should strengthen the experimental demonstration and popularization, and develop 5 special water-soluble fertilizer formulations. Through the project drive and policy subsidies, 502 tons of special water soluble fertilizer for vegetables are popularized and the demonstration area is 10 thousand mu, and the annual Mu Festival fertilizer (nutrient purity) is 5.4 kg, and the water saving of 85 cubic meters per mu is achieved. Increase revenue and reduce expenditure 546 yuan, the city's radiation promotion of more than 10 mu.

The technology of slow controlled release fertilizer has been popularized in a wide range. The research and development improved 3 formulations of spring, summer corn and winter wheat sustained release fertilizer. In 9 suburban counties, Miyun District and Shunyi District, the application technology of slow controlled fertilizer was demonstrated to be 135 thousand mu. With mechanized one-off fertilization, the fertilizer input and labor cost were effectively reduced, the yield increased by 5.3% mu, 8 kg of fertilizer (pure quantity), and 90 increase in expenditure. Yuan.

A variety of models are constructed to boost the zero growth of chemical fertilizers. Through the technology product, the measures policy, the service information and the socialization, we rely on the cooperation of the station to expand the coverage of the technology of soil testing and fertilization, and the cooperation of the station and society to push the technology into the household. Station (school) cooperation to achieve technical services into the field. The overall promotion mode of demonstration village, demonstration model of fertilizer saving demonstration park, and customization mode of special fertilizer subsidy have been formed to promote the implementation of chemical fertilizer reduction technology.