China's total pear cultivation area is 1.074 million hectares, with a total output of 14.62 million tons, accounting for 72% and 65% of the world's pear cultivation area and production, respectively. Although China is a big country for pear production, it is not a production power. The outstanding problems are as follows: 1. The variety structure is irrational and the varieties are aging. Such as pears, pears, pears, huanghuali, etc., the proportion is too high, the market price is low. Second, the variety update is slow, and the "high-reform" technology is backward. The traditional "high-change" method uses the main bark to connect. Due to the low high coupling coefficient and slow recovery of the canopy, the growth balance broken by the "high change" is difficult to establish, which often leads to the occurrence of "high-change" disease, which seriously affects the efficiency of structural adjustment of pear varieties in China. The "high-replacement" technology is a practical, easy-to-operate and efficient pear cultivation for these problems. "Easy operation, easy to understand at a glance, high school, high coupling coefficient, quick crown and yield recovery" new technology.
The Zhengzhou Fruit Research Institute of the Chinese Academy of Agricultural Sciences and the Pear Engineering Technology Research Center of Nanjing Agricultural University have developed a new technology of “high-replacement†of pear trees with “main branch (dry) hole-plugging + small branch cutting and abdomen connectionâ€. Technical points: First, on the basis of retaining the original number of main branches of the base 3 to 5, keep the center dry, and leave the remaining main branches (dry) 1.5 to 2 meters short, the original tree The shape is transformed into a high-efficiency tree shape of “dry cylindrical shape with multiple main branches in the baseâ€. Second, for perennial bare branches (dry), by punching holes in the phloem, a bud can be easily inserted to fill the gap in the crown. 3. Cut the branches of 1 to 2 cm in diameter on the main branch (dry) as short as 8 to 10 cm for cutting, usually more than 20 scions can be grafted on the main branch (dry), a 20-40 The annual tree can be grafted with 100 to 200 scions. The canopy can be restored in the same year, the second year will be the result, and the third year will restore the output.
In the main pear producing areas such as Hebei, Anhui, Henan, Jiangsu, Shandong, Hubei, Hebei, Liaoning, Sichuan and other provinces and cities to promote an area of ​​more than 1 million acres, effectively reducing the original traditional (or local) varieties and old varieties The ratio promotes the adjustment of the pear variety structure. At present, the structure of early, middle and late ripe varieties is about 55:25:20, which is relatively reasonable.
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Shandong Chunyu Water-saving Irrigation Equipment Co., Ltd., founded in 2011, is located in Laiwu High-tech Zone, Jinan City. It is a high-tech enterprise focusing on innovative and efficient emitter mold manufacturing and emitter product research and development and production. After nearly ten years of innovation and development, it is the invisible champion enterprise in Shandong Province, and now it is in a leading position in this field in China.
Spring rain people-oriented, build talent highland. At present, the company has 16 high, fine and advanced technical personnel, and cooperates with a number of scientific research institutes, forming a mold design, emitter testing, flow testing and other professional technical personnel team. In recent years, it has obtained 3 invention patents, 33 utility model patents and 3 patent awards. In 2019, it was identified as an intellectual property advantage enterprise in Jinan. It has undertaken 4 provincial science and technology innovation projects and won 2 second prizes of Shandong Science and Technology Progress Award. The company has built Jinan drip emitter mold engineering technology research center, the company has a slow wire cutting, CNC machining center, precision EDM machine, 3D projection measuring instrument, CNC engraving, laser engraving and other advanced processing equipment. Mature technology and rich experience support the excellent quality of Chunyu. Spring Rain pays attention to every link of production, implements 8S management, strictly controls the quality of products at the beginning, the middle and the end, and forms the seamless link of production management. The company has independently researched and developed flat emitter molds with full hot runner, cylindrical emitter molds with full hot runner and other products. With excellent quality, competitive price and good after-sales service, the company is well known at home and abroad, and has been sold well in Egypt, India, Iran, Turkey, Saudi Arabia, the United States and other countries.
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