Chlorophyll a , chlorophyll b and total content increased with the more sulphur amount from 0 to 10Kg / 667m2 . However , when the sulphur amount was 12Kg / 667m2 , the above three contents were lower .
叶绿素a、b及叶绿素总量在0～10Kg/667m2施硫量下，呈上升趋势。而施12Kg/667m2时含量反而下降。
12kg