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于沙莫蒂甜橙树冠下,土壤带状施用MgCl_2·6H_2O,叶片含镁量和含氯量显著增加。而土壤施用MgSO_4和MgO则无效果。就增加叶片含镁量而言,采用MgCl_2·6H_2O进行灌溉施肥(Fertigation)较土壤带状施肥效果差,同时也不及叶面喷布Mg(NO_3)_2·6H_2O处理的效果好。尽管叶片含氯量高,但未见有可见毒害症状。
Under Shamoti sweet orange tree canopy, MgCl_2 · 6H_2O could be applied in the form of zonal soil, and the content of Mg and Chlorine in leaves increased significantly. Soil application of MgSO 4 and MgO had no effect. In terms of increasing Mg content in leaves, fertilization with MgCl_2 · 6H_2O was less efficient than zonal fertilization in the soil and less effective than spraying Mg (NO_3) _2 · 6H_2O with foliar application. Despite the high chlorine content of leaves, no visible symptoms of poisoning were observed.