Silicon or Silica is an element grainy that plants can’t be use. When the agriculturists use it, soil will a little crumble, but it isn’t useful as expected. Therefore, you should transform it into Silicon (H4 SiO 4). If it is liquid form, it was called Siliacid(H4 SiO 4) that all of plants can use for growing 100%. So, the agricultures don’t confuse about Silicon and Silica. Someone ask us that it’s not efficiency when they use it so we told that you bring sand to use with sand. Sand is 5 groups as following; 1. Quartz was produced glass that has silica 100% 2. Sandstone is from rock mountain that has silica 80%-90% 3. Sand 4. Sand estuary is full of element that can be transformed to silicon 5. Sand from volcano “Zeolite” . It’s a little work. Nowadays, Fooktien grop co., LTD. (Tramangow brand) is the only company can produced Silicon graid and Silicon powder. In addition, there is America’ research by Dr. Matichenkov V.V., University of Florida which talk about benefit of Silicon (H4 SiO 4 ) that is useful to plants and restoring fertility of the soil. As above regarding, these are advantages of Silicon (H4 SiO 4 ). 1. The plants are strong, and they prevent disease, insects and mutation that caused by weather. 2. The fertile soil can control water quality which are physical and chemistry. Soil will be full of minerals. 3. The plants increase products and taste, especially rice and corn are more than before. 4. For the ecology, the products are safety, and it reduces waste from production. All of these reasons should be used Silicon fertilizers more than the present.</p>