Not suitable to apply compound fertilizer and urea in early spring
Every spring plows fertilizes crops. Many growers use the method of fertilizer spreading and urea to fertilize, but this method of fertilization is not scientific. Nitrogen fertilizer needed in early crops Crops need to consume a large amount of energy during budding and flowering in early spring, and nitrogen fertilizer is the main component of protein in crops. In the flowering period, the crops consume about 70% of the nutrients in the reserve. After flowering, the long branches, fruit set, and young fruit cells also need a lot of nutrients to divide. This has caused the situation that the stored nutrients are not enough, so nitrogen fertilizer must be added once before flowering and germination. Timely supplementation is most effective Nitrogen fertilizers should be used in the critical nitrogen requirement period and the maximum efficiency period of crops. Different crops require different critical fertilizer periods and maximum efficiency periods. They should be treated differently and applied rationally. For example, the critical nitrogen requirement of wheat, corn, and other gramineous crops is at the tillering stage and ear differentiation stage. The maximum nitrogen efficiency stage was wheat from jointing to booting stage, rice from tillering to jointing stage, corn at big bell mouth stage, and tomato at fruiting stage. Fertilize in early spring with water Take fruit trees as an example. If you want fruit trees to stop early and early, you must have sufficient nutrients in spring. However, the effective period of topdressing fertilizer in spring cannot be too long, otherwise the branches will grow continuously and affect flower bud differentiation and fruit expansion. Generally speaking, the effective period of topdressing fertilizer should not exceed 20 days. In general, the effective period of compound fertilizers is much longer than this, and water-soluble fertilizers are more conducive to the absorption of fruit tree roots, and the effect is faster. Pay attention to urea application in early spring Urea phthalamide nitrogen cannot be directly absorbed by crops. It must be converted to ammonium nitrogen by the action of microorganisms in the soil before it can be used. When the temperature is 10 ℃, the conversion time is 7 ~ 10 days, and at 20 ℃, it takes 4 ~ 5 days. In early spring, the ground temperature is generally low and the conversion time is long. Not only cause waste, but also cause late lodging, growth and affect flowering and fruit setting. Disclaimer: Some articles on this website are transferred from the Internet. If third party legal rights are involved, please inform this website to deal with them. 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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