belt conveyor machine fertilizer granulator machinery vertical packaging machine agricultural machine Invention patent machinery In order to identify the composition of various water-soluble fertilizers, we generally use N, P2O5, K2O to indicate different ratios of N, P and K nutrients. For example, 20-20-20 means that the total nitrogen content of this kind of water soluble fertilizer is 20%, phosphorus pentoxide content […]
For working mothers, the office radiation is definitely their “first-class event.” How to effectively and conveniently resit electromagnetic waves? Placed radiation-resistant plants, I will give you some suggestions. Cactus is the best flower to adorn garden. Though they are covered with thorns, but the appearance is very beautiful as well as it can be used for processing medicine and food. In addition, the cactus also has the “specific function” of absorbing electromagnetic radiation so that reduce the computer harm to human health. Cactus with a […]
Essential microelements: carbon (C), hydrogen (H), oxygen (O), Nitrogen (N), phosphor (P) and kalium (K) Essential secondary elements: magnesium (Mg), calcium (Ca), sulphur (S) Essential trace elements: chlorine (Cl), ferrum (Fe), manganese (Mn), boron (B), zinc (Zn), copper (Cu), molybdenum (Mo) and nickel (Ni). More than 70 mineral elements can be found in plants and nearly all elements of natural world can be found in plants. However, 17 elements are essential for plants’ normal growth […]