Magnesium |
Deficiency Symptoms |
Magnesium deficiency causes yellowing of older leaves. The symptom begins between the major veins, which retain a narrow green border. A light tan burn will develop in the yellow regions if the deficiency is severe. Fruit yields are reduced. |
Correction Measure |
Incorporate magnetite (300 kg/ha) or dolomite (800 kg/ha) into deficient soils before planting. Fortnightly foliar sprays of MgSO4 (2 kg/100 L) at high volume (500-1000 L/ha). |