First, the concentration should be accurate. The concentration of different fertilizers is different. According to the comparison of spray fertilizer concentration, the optimum concentration of urea is 0.2%-0.3%, borax is 0.3%-0.5%, ammonium molybdate is 0.2%-0.3%, and potassium dihydrogen phosphate is 0.4%. The spray concentration of other fertilizers should be prepared in strict accordance with the instructions or under the guidance of the technician.
Second, the fertilizer should be mixed well. Some trace element fertilizers such as ammonium molybdate are not easily soluble in water. When preparing, dissolve with a small amount of alcohol and then add water to the desired concentration to make the fertilizer liquid uniform. In addition, adding a small amount of soapy water or washing powder to the fertilizer solution to mix well can greatly improve the adhesion of the fertilizer solution on the leaves, which is beneficial to the absorption of fertilizer. After the fertilizer solution is prepared, it should be sprayed in time to prevent precipitation for a long time.
Third, the spray fertilizer should be in place. Many farmers only spray the fertilizer on the front of the blade and ignore the back. The results are often not ideal. Because the foliar fertilizer is mainly absorbed by the leaves through the pore diffusion, the distribution of the pores on the leaves is more than the front side. Therefore, foliar spray fertilizer should pay attention to the front and back spray, especially the back of the blade.
Fourth, the time for spraying fertilizer should be appropriate. The effect of foliar spray is affected by factors such as temperature, light intensity and rain. Spraying should be carried out in the morning and evening, especially in the evening, because the light is not too strong, the temperature is low, and the leaf surface is wet for a long time after spraying, which is beneficial to the absorption of fertilizer by the leaves and the improvement of fertilizer efficiency. Avoid the noon at noon, especially the hot days, avoid the evaporation loss of fertilizer, and do not spray before the rain to prevent the fertilizer from being leached by the rain.
Huaxian Agricultural Technology Promotion Center Sun Caixia
What is WPC ?
Unique and award winning WPC Deck Plus offers a fresh new look and performance specially designed for warmer climates and hard use. The eco-friendly composite decking requires minimal maintenance and yet looks good over time. Designed and manufactured in Europe, WPC Deck Plus combines material technology and recycling know-how to achieve a high performance product that actually helps the environment.Material innovations in harmony with nature
WPC Deck Plus is a stylish decking system manufactured from a durable and environmentally innovative wood plastic composite. The main raw material is recycled paper and plastic from self adhesive labels. As there is no other significant re-cycling process for the label surplus material, the manufacture of each 1m2 of WPC Deck Plus locks up 18,4kg of CO2 that would otherwise be released into the atmosphere by the disposal of the label waste. WPC Products can after their long life cycle be recycled into energy or even re-ground and converted into new WPC products. All materials are non-toxic, no PVC is used.
WPC Decking
Long lasting beauty
Unlike wood or other wood plastic composites, WPC is lignin-free resulting in better colour stability. In order to perform well in warmer climates, it has extra UV resistance and features an aluminium railing system that not only looks good, but maintains stiffness throughout the seasons: it also enables closed deck solutions. WPC Deck Plus boasts a unique surface that combines high friction with low moisture absorption. It is hard enough to resist stiletto heels or furniture, and yet splinter free and comfortable for bare feet.
Ingenious structure
The hollow core structure makes the profiles sturdy, yet easy and light to handle. The weight of one meter of WPC Deck Plus is 2.7 kg. The hollow structure also enables the use of hidden fastening and allows electrical cables to be run unexposed inside the profiles.
Low maintenance
WPC Deck Plus keeps its look well over time. Being lignin-free it does not suffer from the usual "wood greying effect". There is no need to sand, varnish or paint the decking, only periodical cleaning with a pressure hose is enough.
Quick and easy to install
WPC Deck Plus installation system has been designed for ease, speed and perfect finish. With no knots or other defects and every piece produced with same accurate dimensional tolerances, waste is reduced and installation speed increased. The cover strips provide a professional finish to the edges of the deck.
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Shangyu YongSheng New Material Co., Ltd. , http://www.wpc-deckingboard.com