Have the whole world in view we will see, obtained the fast development in some countries with a high human cost of liquid fertilizer, the reason is nothing more than the cost of liquid fertilizer low, stable quality, easy adjustment, high utilization rate formula. But the liquid fertilizer in our country's development was not smooth, too strict industry standards, the problem of cumbersome registration procedures and become the restricting China's development of liquid fertilizer obstacles. Laboratory of crop nutrition professor at South China Agricultural University water soluble fertilizer expert committee of experts Zhang Chenglin said, modify fertilizer standard is the fundamental measure to solve the dilemma of China's liquid fertilizer. The so-called liquid fertilizer refers to the continuous flow of fertilizer. Liquid fertilizer nutritional elements as solute dissolved in water become clear liquid fertilizer solution and suspension fertilizer with the role of suspended suspension in water. "Liquid compound fertilizer has many advantages: low cost of production, the production process of small pollution even no pollution; hybrid precise, consistent quality; compared with granular fertilizer easier to adjust the formula, can be combined with formula fertilization by soil testing data provide more in line with the law of crop nutrition and soil nutrient characteristics of formula fertilizer addition liquid compound fertilizer is usually against the water; application of safety, concentration, water will be fat to root, promote absorption, significantly improving nutrient utilization." Professor Zhang Chenglin says. Because of many advantages of the above, makes the liquid fertilizer into multinational agriculture "cosset". American liquid fertilizer to total fertilizer 55%, has more than 3000 liquid fertilizer factory. The annual consumption of about 16000000 tons of liquid fertilizer. France, Britain, Germany, Italy, Spain, Belgium, Holland, Denmark, Norway, Czech, Romania, Ukraine, Australia, Canada, Israel, New Zealand, Mexico, Brazil, South Africa and other countries, Columbia is the application of liquid fertilizer more countries. Israel field almost 100% using liquid fertilizer. Many countries have developed for the existing set of model liquid fertilizer applications, including fertilizer distribution model, supporting the professional equipment. But the liquid fertilizer development in our country is very slow. The main sales model small model is still present in our country the liquid fertilizer. Bottled, bottled, bagged is the most common packing, agent wholesale and retail sales model also has all sorts of malpractices. Aiming at the small family model, a new "add fertilizer station" mode gradually began to take shape, "like gas and fertilizer" let a person shine at the moment. In addition, with the land transfer work carried out step by step, more and more scale growers, makes the liquid fertilizer demand distribution service is more and more big, this can be said to provide convenient conditions for the rise of liquid fertilizer. However, overly strict industry standards, cumbersome and lengthy registration process, technical team of small, technology popularization is poor, the lack of liquid fertilizer marketing team still restrict the development of liquid fertilizer. Provisions in the compound fertilizer in the national standard: "fertilizer appearance for granular, strip or sheet products, no mechanical impurity." Professor Zhang Chenglin said: "the crop need is nutrient type, proportion, concentration, and the appearance of non fertilizer. Integrated management of water and fertilizer fertilizer dissolving and technical requirements of application, appearance requirements are no more significance." Therefore, he advocated changing the compound fertilizer standards, admitted that "liquid compound fertilizer is a form of" complex mixed fertilizer, compound fertilizer registration according to, and not as a special fertilizer registration. He believes that this is the solution to the current plight of the fundamental way of liquid fertilizer. Professor Zhang Chenglin said, at present our country liquid fertilizer development task is arduous. He advocated the establishment of polylactic acid ammonium and urea ammonium nitrate solution production factory, provide the basis for establishment of raw materials; liquid fertilizer factory production of liquid or suspension type, set up distribution system; making liquid fertilizer fertilizer equipment; the establishment of liquid fertilizer industry association or foundation; widely publicized benefits of liquid fertilizer, liquid fertilizer technology books. Through these ways to promote the development of liquid fertilizer in China, as a typical energy saving and environmental protection products, liquid fertilizer will be the future of the new favorites China fertilizer industry, the huge market potential.