A: The vines are not very strict on soil requirements. Except for heavy saline-alkaline soil, marshland and groundwater level less than 1 meter, they can be cultivated on other types of soil, but the most suitable is loose soil and well-ventilated gravel. Loam and sandy loam, the most difficult to light and wet soil. Grapes have a wide range of adaptation to soil pH, and grape growth is generally good at pH 6.5-7.5. In areas where the soil pH is greater than 8.3 and below 6.0, soil improvement must be carried out in order to grow grapes. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Polyols are a group of alcohols that contain two or more hydroxyl groups in their molecules. The general formula is CnH2n+2-x(OH)x(x≥2). Polyols are generally soluble in water. Most polyols are viscous liquids or crystalline solids with high boiling points, strong solubility in polar substances, low toxicity and volatility. The boiling point, viscosity, relative density and melting point increase with the increase of molecular weight. Polypropylene Ether Polyol,Low-Solvent Polyurethanes,Polyol For Solvent-Free,Covestro Bio-Based Polyol Xingbang High Molecular Materials Co., Ltd. , https://www.chemicaladditive.com