建议在柑桔园增施Mg、B肥及石灰或其它碱性肥料，减少喷施含Cu杀菌剂。
It was suggested that more Mg , B , lime or other alkaline fertilizer and less Cu fungicide should be used in citrus orchards .
施肥应以碱性肥料为宜。
Fertilizers should use alkaline ones .
碱性肥料碱性肥料碱性肥料