Different K rates的用法和样例：
- Our company can supply the archaized tiles with many different k...
- N:P:K rates of sugarcane stalk and N/P or N/K rates of sugarcane leaf is one of the factors which affected sugar content of sugarcane.
- The water and starch content also increased following K rate increased, and both of them reached the highest at 225 kg K2O/hm2. SOp as well as MOP improved yield and starch content of sweet potato.
- Different K, N contents'influence on quality of Red Fuji apple
- Reading and writing are different skills.