Correctly grasp the fertilization time First, in early June, fertilization can be applied to early and mid-maturing cultivars such as Qinyang, Tongla, and Meiji. In the middle and late June, late-maturing varieties such as Hongxing, Jinguan, and early-maturing Fuji (Yuhua Yufu, etc.) Fertilization; For late-maturing varieties and very late-maturing varieties, fertilization must be completed in mid-July, such as Fuji. Rational use of fertilizer varieties The application of potassium fertilizer to apple should be supplemented by nitrogen and phosphate fertilizers, supplemented with appropriate calcium and magnesium elements and trace elements such as zinc and boron. The specific formula is best determined by the results of orchard nutritional diagnosis. For highland orchards in most areas such as Gansu, Shaanxi, Henan and Shanxi, apple special fertilizer (one of the Guoli expansion series) can be used. The balance between vegetative growth and reproductive growth of apple trees in summer can be effectively solved. On the one hand, coloration and quality of apples can be increased. On the other hand, flower bud differentiation can be promoted, and boron deficiency deficiencies and zinc deficiency lobular diseases can be well corrected. And other physiological diseases. The top dressing is mainly to solve calcium deficiency bitter disease, pox spot disease, water heart disease, rough surface cracks and other physiological diseases. Adhere to 10 to 15 days spraying a high-efficiency element in water-soluble calcium fertilizer, requiring effective active calcium content of more than 10%, it is best to use the Ministry of Agriculture formally registered in the middle of the element of water-soluble fertilizer. It is important to remember that in the summer, do not spray on foliar fertilizers with high nitrogen content, such as amino acid foliar fertilizers, nitrate foliar fertilizers, etc., and calcium supplements do not choose products that do not have fertilizer registration from the Ministry of Agriculture. Appropriately control the amount of fertilizer According to the specific tree size or the amount of results to determine the amount of fertilizer, if the yield per mu up to 2000 kg, then about 1.5 kg of fertilizer per plant. If the yield per mu is about 4000 kg, then fertilize about 3 kg per plant. Scientifically grasp fertilization methods Use ditch, hole, sprinkler and other measures. The depth of fertilization was determined by cultivation methods. The location of the fertilization should be in the area where the roots were concentrated. The depth of control was about 30 cm for deeper rooted Qiao cultivation patterns, and about 20 cm for shallow dwarfing root systems. After spraying on the ground, water is sprayed on the ground or micro-spray irrigation of the dropper, so that the fertilizer is dissolved and infiltrated to a depth of 20 to 40 cm. It can also be used after being water-solubilized, or an apple-specific fertilizer that has good water-soluble properties can be used. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone Cryolite Basic Information
Cryolite Application
Mainly used as aluminum smelting flux, Insecticide, also used in glass, enamel, resin, rubber industry Chrysolite Gemstone,Chrysolite Stone,Chrysolite Vertus,Cryolife Homograft,Cryolite Shandong YingLang Chemical Co.,Ltd , https://www.sdylhgtrade.com
CAS: 15096-52-3
MF: AlF6Na3
MW: 209.94
EINECS: 239-148-8
Mol File: 15096-52-3.mol
Cryolite Chemical Properties
Melting point 1012
Boiling point decomp
density 2.9 g/mL at 25 °C(lit.)