Determine the maturity of watermelon according to the accumulated temperature

(agricultural get Rich Network) this is a more objective and accurate method. Generally, the accumulated temperature from flowering to maturity of early-maturing small-fruit type varieties is about 700 ℃, that of early-maturing varieties is about 800 ℃, that of middle-maturing varieties is 900-1000 ℃, and that of late-maturing varieties is more than 1000 ℃. Using the accumulated temperature as the basis for harvest, the average temperature should be measured and recorded every day, and the days from flowering to maturity or the average temperature during fruit growth should be calculated. If the accumulated temperature for fruit ripening of a variety is 800 ℃, and the daily average temperature at the fruiting stage is 25 ℃, the female flower needs 800 / 2532 (days) to mature after flowering.