Table 1.

Nutrient sources for trunk and foliar treatments in preliminary tests

Nutrientnutrient sourceElemental
nitrogenurea8.5%
potassiumpotassium sulfate15.0%
phosphorusmono-sodium phosphate21.0%
calciumcalcium acetate & calcium chloride9.5%
magnesiummagnesium sulfate4.0%
manganesemanganese sulfate3.4%
ironferrous sulfate2.2%
zinczinc sulfate1.3%
coppercopper sulfate0.9%
boronboric acid0.6%