CN1526265A - Maturation promoting method for Dongzao jujube - Google Patents

Abstract

The present invention belongs to fruit cultivating method. The method of promoting maturation of Dongzao jujube includes the main measures of selecting stunted and premature Dongzao jujube variety, setting plastic house in winter and spring to increase temperature, topping off after germination of the tree, tip pruning after the branch grows to 9 leaves to promote early flower to bear, and top dressing with phosphate fertilizer and potash fertilizer. The said method can move up the maturation phase by over 30 days to reach high marketing profits.

Description

A kind of method that promotes winter jujube ripen in advance

Technical field

The invention provides the cultivation method of a planting fruit-trees, especially a kind of winter jujube tree cultivation method.

Background technology

The winter jujube is a kind of good jujube cultivars of eating raw, tasty mouthfeel, and vitamin content is very high.Because the natural freshness date and the storage ﹠ fresh-keeping period of winter jujube are all very short, therefore along with the rapid expansion of winter jujube planting scale, yield of winter jujubes also increases sharply, the winter jujube is concentrated ripe, concentrated listing in a large number, the sales volume and the selling price of winter jujube are very limited, the development of winter jujube and winter jujube plant husbandry is caused adverse effect.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of method that promotes winter jujube ripen in advance, to improve the economic benefit of winter jujube tree plantation.

The present invention is achieved in that a kind of method that promotes winter jujube ripen in advance, it is characterized in that, selects the winter jujube cultivars of dwarfing, precocity for use; Since the early and middle ten days in December, the winter jujube tree is entered in the winter warm type big shack, the button canopy heats, and temperature of shed is not less than 8 ℃ before being controlled at bud, is not higher than 28 ℃, and the florescence is not less than 13 ℃, is not higher than 30 ℃; May, early and middle ten days removed booth; Extract newborn jujube head at once after the winter jujube tree germination; Pinching when fruit branch grows to 9 leaves promotes early blossoming to bear fruit; Topdress based on phosphorus potash fertilizer.

The method of this promotion winter jujube ripen in advance can make winter jujube ripen in advance more than 30 days, has avoided the time that the winter jujube is a large amount of, concentrate maturation, listing, has prolonged the harvest time and the selling period of winter jujube, has improved the economic benefit of selling price and winter jujube plantation.

Embodiment

Further specify the present invention below.

Select the winter jujube cultivars of dwarfing, precocity for use; Since the early and middle ten days in December, the winter jujube tree is entered in the winter warm type big shack, the button canopy heats, be evening booth to be covered completely, roll the straw mat at greenhouse film place daytime, be not less than 8 ℃ before temperature of shed is controlled at bud, be not higher than 25 ℃, leaf stretching period is not less than 8 ℃, is not higher than 28 ℃, and the florescence is not less than 13 ℃, is not higher than 30 ℃; The interior humidity of canopy remains on 75～85% before removing canopy; Extract newborn jujube head at once after the winter jujube tree germination; Pinching when fruit branch grows to 9 leaves promotes the early blossoming result; Topdress based on phosphorus potash fertilizer.

At button before canopy heats, promptly behind the winter jujube tree fall foliage, the winter jujube tree is entered in the winter warm type big shack, night with booth open wide, covered booth daytime completely, to winter jujube tree forced dormancy 30～40 days.Since the early and middle ten days in December, detain canopy again and heat.Other measure of this method is identical with said method.

Before the winter, jujube tree entered booth 20～30 days, should water permeablely, covering with plastic film then is to improve ground temperature in advance.Remove canopy and should strengthen the ventilative amount of booth for the previous period gradually so that the winter jujube tree adapt to natural environment gradually.Temperature of shed remains on and is higher than the following same time of natural conditions as budding period, flowering stage, the phase of bearing fruit, maturing stage more than 2 ℃.Behind the leaf stretching period, sprayed foliage fertilizer one time, spray altogether three times every 7-10 days.Increase ventilation, increase intensity of illumination, promote first bow structure fruit.

Claims (2)

1, a kind of method that promotes winter jujube ripen in advance is characterized in that, selects the winter jujube cultivars of dwarfing, precocity for use; Since the early and middle ten days in December, the winter jujube tree is entered in the winter warm type big shack, the button canopy heats, and temperature of shed is not less than 8 ℃ before being controlled at bud, is not higher than 28 ℃, and the florescence is not less than 13 ℃, is not higher than 30 ℃; May, early and middle ten days removed booth; Extract newborn jujube head at once after the winter jujube tree germination; Pinching when fruit branch grows to 9 leaves promotes early blossoming to bear fruit; Topdress based on phosphorus potash fertilizer.

2, a kind of method that promotes winter jujube ripen in advance as claimed in claim 1 is characterized in that, before the button canopy heats, after being winter jujube tree fall foliage, the winter jujube tree is entered in the winter warm type big shack, night with booth open wide, covered booth daytime completely, to winter jujube tree forced dormancy 30～40 days.