Fruit is always sweeter, but what we want is "green" sweet rather than "chemical" sweet. The "green" sweetening of fruits can be achieved by cultivation, management and appropriate use of biological sweeteners.
1. The management of Sumida is loose, deep, slightly acid or neutral, and the fruit is sweet; the soil is thick and acidic, and the fruit acidity increases. Deep plowing is adopted to improve soil fertility and structure. After planting, deep plowing is carried out in different years to thicken the soil layer (living soil layer is kept above 60 cm).
2. Rational application of fertilizers to organic fertilizers, especially organic fertilizers that are fully decomposed by fertilizers is one of the important measures to increase the sugar content of fruits. Partial application of nitrogen fertilizer, ignoring phosphorus, potassium fertilizer, partial fertilizer ignore cake, green manure and organic fertilizer, neglect to increase the necessary fertilizer is one of the important reasons for the low sugar content of fruits.
3. The application of sweetener in an appropriate amount to the biosweetener (sweetening colorant) will not only increase the sugar content of the fruit, but also make the fruit evenly colored, and it can maintain the “green†quality of the fruit.
4, pruning thinning flowers, thinning fruit can make the fruit tree results appropriate, leaf-fruit ratio is relatively large; plastic, pruning can make the tree air and light, with good light conditions; through these management measures can also improve the fruit's sugar the amount.
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