福建省柑桔、龙眼园的氯素营养状况

The nutrient status of chlorine in citrus and longan orchards in Fujian province

对福建省柑桔、龙眼主产区的果园土壤及叶片氯含量进行较为广泛的调查分析。结果表明 ,柑桔园土壤氯含量为 9.7～ 12 7.1mg· kg-1,平均为 2 5.6mg· kg-1;叶片氯含量为 0 .0 0 7%～ 0 .198% ,不同品种间叶片氯含量差异较大 (雪柑 >柑 >溪蜜柚 )。龙眼园土壤氯含量为 17.0～ 10 3.8mg· kg-1,平均为 2 9.3mg· kg-1;叶片氯含量为 0 .0 0 8%～ 0 .0 95% ,平均 0 .0 2 6%。总体看 ,福建柑桔、龙眼红壤果园氯素营养水平并不高 。

The contents of soil and leaf chlorine in citrus and longan orchards in Fujian province were investigated.It was showed that the chlorine of the soil in the citrus orchards was 9 7-127 1 mg·kg -1 with a mean of 25 6 mg·kg -1 ,and that of the leaf was 0 007%-0 198%,A great difference in leaf chlorine of the three citrus varieties was found(Sheukan>Ponkan>Guanxi Honey Pomelo).The chlorine of the soil of the longan orchards was 17 0-103 8 mg·kg -1 with a mean of 29 3 mg·kg -1 ,and that of the leaf was 0 008%-0 095%,and the mean was 0 026%.It was concluded that the chlorine nutrient of citrus and longan orchards was not high,and an appropriate application of chloride fertilizers would be feasible.