Cultivation method of winter jujubes convenient to pick

Abstract

The invention discloses a cultivation method of winter jujubes. The cultivation method comprises the steps of 1, choosing loam or sandy loam soil; 2, selectively planting robust nursery stocks without quarantine disease and pests and with complete root systems; 3, after planting, from the outer edges of planting pits, conducting outward deep tillage and expanding for 0.5-1.0 m combined with applying a base fertilizer in every autumn, wherein the depth is 40-60 cm; when the soil is refilled, putting surface soil at the bottom layer, putting subsoil at the upper layer, and then watering sufficiently; 4, applying the base fertilizer in autumn after the fruits are harvested, conducting topdressing inside roots three times every year, topdressing a rapidly available nitrogen and phosphorus fertilizer, topdressing a nitrogenous fertilizer in the fruit setting stage in the first ten days of June, and topdressing a nitrogen-phosphorus-potassium compound fertilizer in the young fruit expanding stage in the first ten days of July; 5, irrigating once in the germination stage, the flowering stage and the fruit expanding stage respectively; 6, pruning in three tree shapes of a freedom spindle shape, a small and sparse canopy shape and multi-main-branch natural round head shape. According to the cultivation method of the winter jujubes, the fruit setting rate can be increased, the trees are short and convenient to pick, the pulp quality is crisp, the sweetness is high, and the fruits are big.

Description

technical field [0001] The invention relates to a method for cultivating jujubes, in particular to a method for cultivating conveniently picked winter jujubes. Background technique [0002] Dongzao is a cultivar of jujube, which originated in Zhanhua District, Binzhou City, Shandong Province. It is an excellent late-maturing and fresh variety of thornless jujube. It is also recognized as the best quality fresh jujube variety. The average fruit weight is 17.5g. The maximum weight of a single fruit can reach 25g, its shape is like an apple, and it is called "little apple". Compared with other fruits, winter jujube is also rich in vitamin A, vitamin E, potassium, sodium, iron, copper and other trace elements. The content of vitamin C is 70 times that of apples and 140 times that of pears. It is known as the "King of Hundred Fruits" and "Living Vitamin Pill"; in addition, it is rich in various trace elements and minerals, and has the effect of preventing cardiovascular and cere...

AI Technical Summary

Problems solved by technology

[0003] The existing winter jujube cultivation techniques are likely to cause serious dead plants and low survival rate of winter jujube. The reasons are: watering too frequently or too much, not cultivating in time, serious hardening, or burying the soil too deep when planting, poor ventilation of the root system, suffocation and death. The second is that the plastic film is not covered after planting, the surface soil is loose, the water retention is too poor, and the root system dies due to drought and water shortage; and the fertilization in the planting ditch is too concentrated, resulting in fertilizer damage and root burning, etc.

In addition, the existing winter jujube fruit trees are tall and difficult to pick. Some of them have firm flesh but not crispy, low sweetness and small fruits.

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