On March 9, the 2015 national conference on the promotion of slow and controlled release fertilizer was held in linshu, shandong province.Nearly 1,000 soil and fertilizer system experts from 25 provinces (municipalities directly under the central government and autonomous regions), slow and controlled-release fertilizer promoters and large farmers attended the conference.The meeting actively discussed and implemented the specific program and technical measures of "zero" growth of fertilizer, effectively guided farmers to adopt new fertilizer and new technology through the organic combination of "good fertilizer" and "good method", improved soil quality and efficiency, and provided a practical sample for China to fully open the "zero" growth of fertilizer.

The annual conference on the promotion of slow and controlled release fertilizers, as an important work conference on the promotion of slow and controlled release fertilizers in China, has been held for seven consecutive sessions.Sun zhao, senior agronomist of the national agricultural technology extension service center, introduced the demonstration effect of the slow and controlled release fertilizer test in 2014.In 2014, slow-release and controlled-release fertilizer demonstrations were extended to 31 crops in 25 provinces, with 92 demonstration sites, basically covering crops in major regions of China.The experimental and demonstration data of slow-release fertilizer showed that the slow-release fertilizer increased the yield of corn by 10.4% and 6.4%, respectively, compared with the conventional fertilizer and the formula fertilizer.In the experiment and demonstration of jiuquan grape in gansu province, the total cost and efficiency of slow-release fertilizer was 230 yuan per mu.

In addition to the slow-release fertilizer test demonstration, the national agricultural technology extension service center continued to strengthen the slow-release fertilizer upgrade products such as nitro controlled release fertilizer, nitro double effect fertilizer, nitro compound fertilizer and other new fertilizer varieties of the test demonstration.Nitro-controlled release fertilizer is added on the basis of slow-release fertilizer, combined with "slow and slow", with sufficient nutrients in the early stage of crops, and long-lasting fertilizers in the later stage. Compared with formula fertilization and conventional fertilization, the yield of nitro-controlled release fertilizer reached 14.2% and 11.3% respectively, and the net income of mu was 1944 yuan and 1346 yuan.Nitro-fertilizer increased significantly in potato, grape, watermelon, ginger, etc., and the yield of crops increased by 10-20%.Nitro double effect fertilizer realized nitrate nitrogen, ammonium nitrogen, controlled release nitrogen and the unity of three nitrogen, which ensured the nutrient demand of crops in the early, middle and late stage, and laid a good foundation for stable and high yield of crops.

National agricultural technology extension service center deputy director xie jianhua at the meeting to make important instructions.He said that in the past few years, "government and enterprises" jointly promote slow release fertilizer, has become a typical example of agricultural technology in China.According to the zero growth requirement of the ministry of agriculture, the growth rate should be controlled within 1% in 2015, and the fertilization structure and method should be further optimized and improved.Taking slow and controlled release fertilizer as an example, the demonstration and popularization of new fertilizers and new technologies for agriculture in China for 8 consecutive years has played a good driving role.In terms of fertilization method, only 30% of the basal fertilizer in China is mechanized, and the mechanization rate of the late topdressing is only 2%.In order to realize the mechanization of fertilizer, it needs the support of new fertilizer and new technology.Xie jianhua highly recognized the achievements achieved in the current technological progress of chemical fertilizer, product innovation and marketing promotion of Kim jong UN. He asked the national agricultural technology extension service center and Kim jong UN to continue to increase efforts in the demonstration and promotion of slow-release fertilizer, so as to make greater contributions to the reduction of chemical fertilizer and the sustainable development of agriculture.

As an important carrier for the promotion of slow-release and controlled-release fertilizers, the technology of "simultaneous sowing of seed fertilizer" has been promoted on corn in 9 provinces, including shandong, henan, hebei and anhui.Luo Wensheng Jin Zhengda group vice President stressed that in order to adapt to the cultivation of comprehensive benefit of farmers, in 2015, and Seoul will continue to work with the national agricultural technology center to start the seed manure with information technology promotion action, and the big step to realize "three steps" action, from promotion to achieve technically mature corn seed manure with sowing, to expand promotion on rice, wheat, cotton and other crops;In terms of products, from slow release fertilizer to nitro controlled release fertilizer, nitro double effect fertilizer, package fertilizer and other product upgrades;In terms of service, the platform construction of "agrochemical service center" is relied on to build a perfect service and technology application system.At the same time, to continue to carry out the industry's largest, covering the most popular and most benefit farmers "seed manure simulcasting tour activities", plans to invest, to mobilize 40000 seed manure with sowing machine, a mechanical sowing, training 50000, slow controlled release fertilizer promotion of 7.5 million mu, the "seed manure with sowing" into service to agriculture, rural areas and farmers "agricultural industry service" brand.

It is understood that in 2015, the national conference on the promotion of slow and controlled release fertilizer will be held in the country four, will set off a storm of the popularization of slow and controlled release fertilizer.Jin Zhengda will also through "two look to send" activities, will ShiFanTian construction, at the scene of rallies, training and other agrochemical services extended to the fields, build up the industry's leading "scope of knowledge dissemination system, soil testing formula fertilization service system, on-site service guidance system", the agricultural technology popularization system, for the plane to carry out the "zero growth" chemical fertilizer to explore a reasonable and efficient way to develop modern agriculture.