First, low temperature germination: summer lettuce growth period is high temperature season, so must use heat-resistant varieties. Before germination, first germination, soaking seeds with cold water and adding new high-fat film (improving seed germination rate) for 8-12 hours. When the water absorption rate of the seeds reaches 70% to 80%, wrap it with wet gauze and keep the temperature at 4-5 °C. After -28 hours, it is placed in a suitable temperature condition of 15-20 °C to moisturize and germination, and most of the seeds can be sown after 2-3 days.
Second, seedling transplanting: summer lettuce shoots at the end of June, early July, when seeding, the best seeds mixed with appropriate amount of dry fine soil re-broadcast, shallow sowing after the sowing, with straw curtain scaffolding shade seedling, seedling stage combined with watering After 2-3 times of dilute water manure, the seedlings can be transplanted when there are 4-5 true leaves in about 25 days. After the seedbed is watered, the seedlings are transplanted with soil, the plant spacing is 25 cm, the row spacing is 35 cm, and 700-800 plants are planted every 667 m2. After planting, the root water is poured, and the diluted water manure is poured once every 2-3 days. The new high-fat film is sprayed on the surface of the plant to prevent the infection of the bacteria, improve the ability to resist natural disasters, increase the photosynthesis intensity, and protect the seedlings. growing up. Third, fertilization and watering: summer lettuce has shallow roots, weak absorption capacity, coupled with rapid growth in summer, requiring more fertilizer and water, special attention should be paid to heavy fertilizer water management. After the seedlings are alive, the damp water manure is applied in combination with drought resistance every 3 to 5 days. When the stem begins to expand, the water is poured and the strong stems are sprayed at appropriate time, which makes the stems of the plants strong, the leaves are thick, the leaves are fresh and the plants are flourishing. The leaves were sprayed with 0.3% potassium dihydrogen phosphate 1 to 2 times. If you find downy mildew, in the early stage of the disease, spray the nail cream treatment.
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Pressure Compensation Emitter Automatic Assembly Machine And Products
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.
With the vision of "building a global professional emitter mold supplier" and the mission of "providing solutions for efficient and innovative production of global water-saving irrigation enterprises", the company takes "scientific and technological innovation to scale new heights; Keep improving, the pursuit of excellence; Honesty and trustworthiness, win-win cooperation "for the values of the enterprise. For the construction of water - saving and resource-saving society to make a positive contribution.
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Shandong Spring Rain Water Saving Irrigation Equipment Co.,Ltd. , https://www.drippermould.com