1. Selection of micro-irrigation and fertilization system According to water source, topography, planting area and crop type, different micro-irrigation and fertilization systems are selected. The cultivation of protected land, the cultivation of open-spotted vegetables, and the cultivation of economic crops in the field generally require drip fertigation systems, and the fertilization device generally selects a fertiliser, a differential pressure fertilization tank or a fertilizer pump. The orchard generally chooses the micro-spraying fertilization system, and the fertilizing device generally selects the fertilizer pump. If there are conditions, the automatic fertigation system can be selected. 2. Develop a micro-irrigation fertilization program (1) Determination of the micro-irrigation system The irrigation quota is determined according to the water requirement of the crop plant and the precipitation of the crop growth period. The irrigation quota for micro-irrigation and fertilization in open field should be reduced by 50% compared with flood irrigation, and the irrigation quota for drip irrigation should be reduced by 30%-40% compared with greenhouse irrigation. After the irrigation quota is determined, the irrigation period, the number of times, and the amount of irrigation each time are determined according to the water requirement law of the crop, the precipitation situation and the soil moisture. (2) Determination of fertilization system There are significant differences between micro-fertilization and traditional fertilization techniques. A reasonable micro-irrigation fertilization system should first determine the total fertilization amount, the ratio of nitrogen, phosphorus and potassium, and the ratio of bottom and top dressing according to the fertilizer requirement of the crop, the fertility level of the plot and the target yield. The fertilizer used as the base fertilizer is applied before the preparation of the soil, and the top dressing is determined according to the fertilizer characteristics of different crop growth stages. The implementation of micro-irrigation and fertilization technology can increase the fertilizer utilization rate by 40%~50%, so the amount of fertilizer used for micro-irrigation is 50%-60% of conventional fertilization. Taking the facility cultivation tomato as an example, the target yield is 10,000 kg/mu, and the absorption of N: 3.18 kg, P2O5: 0.74 kg, K2O: 4.83 kg per 1000 kg of tomato produced, the total nutrient demand is N: 31.8 kg, P2O5: 7.4 Kg, K2O: 48.3 kg; nitrogen fertilizer utilization rate of 57%-65% in the cultivation conditions, 35%-42% of phosphate fertilizer, 70%-80% of potash fertilizer; the above-mentioned yield should be applied to N: 53.12 kg, P2O5 : 18.5 kg, K2O: 60.38 kg, total 132 kg (not calculated soil nutrient content). Based on the nutritional characteristics of tomato, the fertilization plan for each growth period of tomato was formulated. (3) Selection of fertilizers The application of the base fertilizer in the micro-irrigation and fertilization system is the same as that of traditional fertilization, and may include various organic fertilizers and various fertilizers. However, the fertilizer type of micro-irrigation and topdressing must be soluble fertilizer. Urea, ammonium bicarbonate, ammonium chloride, ammonium sulfate, potassium sulfate, potassium chloride and other fertilizers that meet national or industrial standards have higher purity, less impurities, and do not precipitate after being dissolved in water. top dressing. Supplemental phosphorus is generally used as a top dressing with soluble fertilizer such as potassium dihydrogen phosphate. Topdressing supplements with trace element fertilizers can generally not be used simultaneously with phosphorus topdressing to avoid the formation of insoluble phosphate precipitates and block the dripper or nozzle. 3. Supporting technology implementation of water and fertilizer integration technology should be applied to the application of improved crop varieties, pest control and field management techniques, and can also be adapted to crops, using plastic film covering technology to form drip irrigation under the film, and fully exerting the advantages of water saving and fertilizer saving. Improve crop yields, improve crop quality, and increase efficiency. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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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