... in 5 minutes is equal to the borax after 15 days spreaded in the soil, it all will permeate ... peach, grape, Chinese chestnut, citrus, and cherry etc.1 mu = 1/15 hectare1. High content, this product is a concentrated chemical boron ... in 5 minutes is equal to the borax after 15 days spreaded in the soil, it all will permeate ... pear, peach, grape, Chinese chestnut, citrus, and cherry etc.1 mu = 1/15 hectare