Persimmon planting technique: what is the special growth characteristic of sweet persimmon seedlings?

Do you know what are the special characteristics of sweet persimmon? If you want to know, let's take a look.

First, the selection of rootstocks is relatively strict: according to the rootstocks commonly used in Taiwan, Jiro's affinity is better, rich is worse, and the imperial series is even worse. after about three years of grafting, incompatibility continues to appear and die.

Second, there is a certain temperature during the growth period of sweet comb in order to get rid of astringency completely: take rich as an example, during the growth period from germination to fallen leaves, the average temperature should be above 17 ℃. In the period of fruit development, due to strong metabolism, the average temperature should be between 18 and 19 ℃, and during the period of stagnation of fruit hypertrophy, it should be 21: 23 ℃. Too high and too low temperature are not conducive to fruit hypertrophy.

Third, fruiting every other year: the period from flowering to flower bud differentiation of sweet persimmon is short. Usually after the physiological fruit drop, flower bud differentiation begins, and this is the time when the nutrient consumption is the most. In the year with more fruit, the nutrients of the tree are not enough for flower bud differentiation in the coming year, and the number of flowers will be less in the following year. If there is no proper adjustment in the year with too many results, the result potential will affect the result of the second year, and the phenomenon of the result of the next year will be formed.

Fourth, physiological fruit drop: before June, the pedicel and the fruit fall off together, which is called early fruit drop, and the fruit drop after June is the residue of sepals on the tree, which is called late fruit drop.