In 1988, the company obtained the invention patents of two countries in China and the United States with the "fertilizer-encapsulated fertilizer and its manufacturing process", and won the third prize of the national science and technology invention in the same year. In 1999, "International Fertilizer" magazine praised fertilizer-coated fertilizer as "China's first - future fertilizer." It is reported that the “Incorporate Standard for Slow-release Fertilizers†has been approved by relevant departments, which will create more favorable conditions for the production, promotion and use of slow-release fertilizers in China.
The biggest characteristic of fertilizer-loaded slow-release fertilizer is that it is not lazy. Every fertilizer has spared no effort to release all the active ingredients to the growth process of crops. Even when the final inclusions are empty, it also plays loose soil. The role.
According to the American AOC method, the efficiency of packaged slow release fertilizer is 90-120 days, and the third-generation product has a fertilizer efficiency of up to 150 days, which can fully meet the nutrient needs of the main growing crops in China. Experiments show that 50 kg of ordinary fertilizer is applied per mu, and only 45-40 kg of coated slow-release fertilizer is needed. The experiment of farmland in Henan, Shandong and Guangdong shows that the utilization rate of nitrogen fertilizer of wrapped slow-release fertilizer is increased by 7.74%, which shows that the yield of common compound (mixed) fertilizer is increased by 10% to 15% on various crops.
The goal of packaged slow-release fertilizer is to control the ammoniation and nitrification process of water-soluble nitrogen fertilizer, mainly urea (or ammonium nitrate), to reduce losses and improve nitrogen utilization. The technical feature is that the coated fertilizer is made of fertilizer and fertilizer, and the cost is low, and there is no secondary pollution. Its advantage is that it can effectively improve the nitrogen utilization rate in response to China's national conditions, and the number of slow-release fertilizers is low, which has broad application prospects in the Chinese market. At present, the promotion of packaged slow release fertilizers in the Northeast is very effective.
However, China's slow-release fertilizer market is developing slowly for three reasons: First, farmers' awareness is low. Second, reducing production costs has become the key to large-scale farmland promotion. At present, the processing fee per ton of domestic controlled release fertilizer is generally between 600 yuan and 800 yuan. In addition to factory management and operation, the price per ton is about 800 yuan to 1000 yuan higher than that of ordinary fertilizer, and then the market price is higher. As a result, the peasants looked good and could not afford it, and they were called "aristocratic fertilizers." Third, it is necessary to form a strong R&D and promotion platform.
1. Features of tape measure
Gift rulers are used for advertising and promotion. They are divided into Steel tape (steel tape) and leather tape (PVC plastic fiber tape). They are usually cute and compact. Tape measures are also called measuring tools. Eighty-five percent of the world's tape measures are exported from China.
2, the characteristics of the tape measure
(1) The tape measure is too deformed and will not fail
Why didn't it fail? The spring in the tape measure is very long, and its range from completely relaxed to fully tightened is very large. The entire stroke of the tape measure includes it, and there is a margin at both ends, so the tape measure will not fail.
(2) Pull one meter long and pull two meters long, there is no difference in tension
The spring of the tape measure is very thin, and the amount of deformation when it is tightened is also small, so the reaction force is very small, and the force change is not felt when the rule is pulled.
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Yucheng tengxu Measuring Tool Co., Ltd , https://www.txhardwaretools.com