Artículos
Foliar application of potassium nitrate increased brix in apples and pears
The brix value is one of the most important fruit quality parameters for apple and pears, beside fruit skin color and fruit flesh firmness. Brix is a measure for the content of dissolved solids such as sugars and has a main impact on fruit taste. Foliar applications of potassium nitrate as Ultrasol® K Plus resulted in statistically significant higher brix values (+ 1 degree Brix), at harvest and after 3 months low-oxygen cold storage (ULO) of the fruits. Potassium nitrate was applied at 20 kg/ha during fruit development.
In apple, this amount was split over two applications of 10 kg/ha each, in pear three times 6,7 kg/ha was applied. Spray volume was controlled at 1000 L/ha.
