1991-1993 – Metalosate® Zinc was tested in South African citrus orchards from 1991 to 1993. Most work was done at rates of two to three liters per hectare (27 to 41 fluid ounces per acre). In these studies results showed that responses to Metalosate Zinc were better when the material was applied in a program of three sprays rather than when applied as a single spray at new leaf. Yields as measured in kg per tree were increased by 12.2% over the Control, and by 7.8% over the zinc nitrate treatments. In addition to this, a beneficial effect on fruit size was observed. Metalosate Zinc applied at 4.75 liter/hectare (65 fl. oz./acre), produced a statistically significant improvement in the fruit grading leading to a 4.3% increase in the value of the fruit
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