Many farmers prefer high levels of fertilizer in spring of this year. Research farmers prefer, I recently throughout Wulian County, Shandong agricultural market in a circle, found high levels of fertilizer is still agricultural shopkeeper push varieties dominate. 

I see in the streets of the town an agricultural supermarket house palletizing fertilizer is basically the total nutrient content of 51% of the high levels of fertilizer. In recent years, such as the NPK 17-17-17 such high levels of fertilizer has been dominated by the spring fertilizer market, even 18-18-18 ultra-high levels of fertilizer is also more and more respected agricultural store. This township shop dealers to reflect high levels of fertilizer prices, retail prices are generally at 200 yuan / bag (50 kg), but always favored farmers, sales rise year by year. 

The total content of less than 45% of the fertilizer in the agricultural store sales in the proportion of small, but increasing trend of sulfur-based compound fertilizer like NPK 15-15-15. Over the years, many dealers sulfur-and chlorine-based compound mixed with the sales price, but increased with the cognitive level of farmers, coupled with media propaganda and guidance, many farmers have been able to recognize the difference between the two, and the crop varieties, rational and reasonable to buy sulfur-and chlorine-based compound. Like I area, the spring planting peanuts and sweet potatoes, as well as sporadic potatoes, such crops avoid chlorine, so the vast majority of farmers to buy based compound fertilizer. 

It is understood that, in recent years, high levels of fertilizer in the country occupies a large market share, and therefore single application of such high levels of fertilizer has become increasingly prominent, not only quickly reduce soil fertility affect crop quality, but also bring the environment and resource issues. This year's "two sessions" have deputies and CPPCC members focus on the issue of agricultural pollution. The author through the side of the survey also found that excessive use of chemical fertilizers, it will only increase costs without increasing production, resulting in crop nutrition disorders susceptible to disease invasion, dead seedling death wheat crop lodging. Many peanut growers reflected to the author, peanut seedlings died in recent years, died wheat pod shell phenomenon worsened. A peasants, he has been selected NPK 17-17-17 high levels of fertilizer, ignoring the trace elements, is not conducive to nitrogenase, resulting in above-ground part of the stems and leaves of Guo Mao, leggy, some trace elements, especially calcium The elements of a serious lack of serious peanut shell. 

I see relevant information on concentrations of fertilizer should be advocated. Germany, Japan, the United States and other developed countries, as well as Taiwan, China, mostly used in concentrations of fertilizer. German the lion horse brand purple fertilizer king content is known as one of the three major brands of world fertilizer 15-5-20 +2 MgO + fertilizer, red fertilizer 12-10-20 +2 MgO + fertilizer, fertilizer Blue King 12-12-17 +2 MgO + fertilizer, the NPK nutrients 40% to 42%. Japan for rice fertilizer NPK 14-14-14, wheat 10-18-12, the vegetables 10-10-10, total nutrient basically 30% to 42%. Taiwan Taiwan Fertilizer Company No. 1 fertilizer 20-5-10 +2 MgO +2 CaO + trace fertilizer. On this basis, you can add enough in trace elements, and mixed with a certain proportion of slow-release nitrogen fertilizer. This concentration of functional and nutritious fertilizer, in recent years, with the country to promote soil testing and fertilization, has achieved success in many places. Some local launch of special fertilizers and wheat, corn, played a role to reduce costs and improve production by the farmers in production. 

The author analyzes the reason will appear in the production, sales and consumption sectors dominated by the high levels of fertilizer, because farmers blind pursuit of high-yield, relative lack of guidance of scientific fertilization, long-term irrational fertilization led to a serious decline in soil fertility, they want to high yield, the more excessive use of chemical fertilizers, forming a vicious circle. Second, manufacturers, distributors simply pandering to the preferences of farmers unscientific, even at the cost of hype and misleading, lack of sympathy for farmers, less consideration the quality of long-term endurance of farmers and farmland. For manufacturers, the high levels of fertilizer profits sell tons of low levels of fertilizer and sell one ton is certainly different. Therefore, we recommend that the manufacturers should have the courage and determination of social responsibility, with the feelings of the farmers engaged in scientific research, engage in production, engage in agricultural services, the development of the country a good product. We also recommend that national and agricultural experts to do a good job fertilizer comparison test, promote concentration in the soil testing work, multi-function, high efficiency, suitable for farmers to use fertilizer formula, so that farmers seeing is believing, and establish the concept of scientific fertilization, as soon as possible to reverse the blind use of high levels of fertilizer preferences.