Modifying compound fertilizer standards is the fundamental strategy

Looking at the world, we will see that in some countries with high labor costs, liquid fertilizers have developed rapidly. The reason for this is nothing more than the low cost, stable quality, easy formulation, and high utilization of liquid fertilizers. However, the development of liquid fertilizers in China has not been smooth. Overly strict industry standards, tedious and lengthy registration procedures and other issues have become obstacles to China's development of liquid fertilizers. Zhang Chenglin, expert of the Expert Committee on Water-Soluble Experts at the Crop Nutrition Research Office of South China Agricultural University, said that the revision of the standard of compound fertilizer is the fundamental solution to the difficulties of liquid fertilizer in China.

The so-called liquid fertilizer refers to a continuously flowing fertilizer. The liquid fertilizer divides the nutrient as a solute, which is dissolved in water to become a solution liquid fertilizer and suspended fertilizer suspended in water by the action of a suspending agent. "Liquid compound fertilizers have many advantages: low production costs, little or no pollution in the production process; accurate mixing, consistent quality; more easily adjusted formula than granular fertilizers, combined with soil testing data to provide more consistent with crop nutrient law Formula fertilizer for soil and nutrient characteristics; in addition, liquid compound fertilizer is usually used for watering, with safe concentration, water will bring the fertilizer to the root, promote absorption, and significantly increase nutrient utilization, said Professor Zhang Chenglin.

Due to the above advantages, liquid fertilizer has become the "darling" of multinational agriculture. The United States liquid fertilizer accounts for 55% of the total fertilizer and has more than 3,000 liquid fertilizer plants. Annual consumption of liquid fertilizer more than 16 million tons. France, the United Kingdom, Germany, Italy, Spain, Belgium, the Netherlands, Denmark, Norway, the Czech Republic, Romania, Ukraine, Australia, Canada, Israel, New Zealand, Mexico, Colombia, Brazil, South Africa and other countries are all countries with more liquid fertilizers. Almost 100% of Israeli fields use liquid fertilizers. Many existing countries have developed a complete set of models for liquid fertilizer applications, including fertilizer distribution models and equipment supporting specialties.

However, the development of liquid fertilizer in our country is very slow. The small household model is still the main sales model of liquid fertilizer in China. Bottled, bottled, and bagged are the most common types of packaging. There are also various drawbacks in the sales model of wholesale and retail sales. For the small-scale model, a new type of “fat station” model gradually began to take shape, and “adding fertilizer like a car refueling” made people stand out. In addition, with the gradual development of land transfer work, more and more large-scale growers have emerged, making the demand for liquid fertilizer distribution service more and more, which can be said to provide a convenient condition for the rise of liquid fertilizer. However, overly stringent industry standards, cumbersome and lengthy registration procedures, small technical teams, poor technology, and lack of liquid fertilizer marketing team still restricts the development of liquid fertilizers.

In the national standards for compound fertilizers, it states: “The appearance of compound fertilizers is granular, strip or sheet products without mechanical impurities.” Professor Zhang Chenglin said: “The crop needs nutrients, proportions, and concentrations, not fertilizer appearance. The technology of water and fertilizer integration requires fertilizers to be dissolved and then applied, and the appearance requirements are even more meaningless." Therefore, he advocated changing the standards of compound fertilizers and admitted that "liquid compound fertilizers" are a form of compound fertilizers. Register as a compound fertilizer and do not register as a special fertilizer. He thinks this is the fundamental way to solve the current liquid fertilizer dilemma.

Professor Zhang Chenglin said that at present, the development of liquid fertilizer in our country is arduous. He advocated the establishment of a production plant for ammonium polyphosphate and urea nitrate solutions to provide basic raw materials; establish a production liquid or suspension type liquid fertilizer factory, establish a distribution system; formulate liquid fertilizer application equipment; establish a liquid fertilizer industry association or ** Will; widely publicizing the benefits of liquid fertilizer, publishing a technical book on liquid fertilizers. Through these means to promote the development of liquid fertilizer in China, and as a typical energy-saving environmental protection products, liquid fertilizer will certainly be the new favorite of the Chinese fertilizer industry in the future, the market has great potential.