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Winter prebloom foliar spray application of low Biuret urea is known to greatly increase flower number, thus greater crop yield. Proper timing is important to achieve the desired outcome. Winter prebloom sprays are designed to increase flower number and fruit yield without reducing fruit size. Winter prebloom foliar sprays with low biuret urea (46-0-0 >0.5% biuret) is applied at the rate of .44-lbs. (200-grams) in 2 gallon of water plus one teaspoon of a good surfactant per gallon.. For large area sprays (acres) 50-lbs. per 225 gallons water. NOTE: a second low biuret urea foliar spray should also be done after early fruit drop and June drop periods to insure an increase in fruit size. In most areas this would be around July 1 to July 20.