Different potassium rates的用法和样例：
- Different potassium types have different influence on tea quality.N，P and K must be used in proportion for improvement of tea quality.
- The depletion of potassium in the rhizosphere soil of fou r wheat varieties with different potassium nutrition efficiency was studied in soil culture with 3-compartment-pot.
- The flame structures of NC/TMETN insensitive propellant containing different potassium salts as the secondary flame suppressors were studied by means of the single frame amplification photography.
利用单幅放大摄影法研究了含钾盐消焰剂的NC/TMETN (三羟甲基乙烷三硝酸酯 )基钝感推进剂的火焰结构。
- Effect of different potassium application rate on the potassium contents of Flue-cured tobacco in Cinnamon soil area
- Reading and writing are different skills.