Jujube fruit cracking prevention method

Abstract

A jujube fruit cracking prevention method aims to achieve the purposes of good simplicity and convenience and high practicability, can be easily accepted by peasants and can effectively lower the jujube cracking rate in autumn. The method comprises the following steps: at the early stage of blooming of jujube trees, within 15 days after start of the early flowering season, a flower thinning agent is sprayed to the jujube flowers to thin off the early flowers, so that the late flowers are fruitful; accordingly, the fruit development time is put off by about 10-15 days, and the probability of sliding over the rainy days in the later period of fruit development is higher; from the intermediate stage of fruit development, whether to water the jujube trees or not is determined according to the soil moisture content every day to enable the rhizosphere soil moisture to be kept 60-80% of the field maximum moisture capacity till the last ten days of September, so that the demand for normal jujube fruit development on moisture can be satisfied.

Description

technical field [0001] The invention relates to a method for comprehensively preventing jujube fruit from cracking, belonging to the field of fruit tree cultivation. Background technique [0002] With the development of rural economy, jujube has gradually become one of the pillar industries of agriculture in my country, especially in some northern areas. Jujube trees in some counties have become an important source of farmers' economic income. However, when the fruit is close to maturity and it rains continuously, many jujube varieties are prone to fruit cracking in varying degrees. This common jujube fruit cracking phenomenon in our country is a physiological disease, which is most likely to occur in the northern arid area. In the early stage of jujube fruit cracking, the pulp gradually lignifies, and in the later stage, the fruit begins to crack, exposing the pulp, and the pulp shrinks and turns black at the crack. When the humidity is high, germs take the opportunity to...

AI Technical Summary

Problems solved by technology

(3) Measures for shelter from rain: 1) Build a shelter for shelter from rain. This method is indeed effective in sheltering from rain and cracking, but it has certain limitations: a) It can be used for newly planted jujube orchards and large trees with relatively neat row-to-plant spacing. It is difficult to adopt irregularly planted trees; b) jujube orchards are available in plain areas, but difficult to adopt in mountainous jujube orchards; c) the one-time investment is relatively large, and it can be adopted in areas with considerable economic strength, but it is difficult to adopt in poor areas; d) because rain shelters cannot It will inevitably block part of the light, which will affect the redness of the fruit, and the high temperature and high humidity caused by it will also lead to an increase in later diseases

[0007] In recent years, measures similar to "cocktail therapy" have been adopted in the prevention and control of jujube fruit cracking. Various cultivation techniques such as canopy, bagging, and chemical agent spraying have been used to prevent jujube cracking. Although certain effects have been achieved, there are still some problems. The anti-cracking effect is unstable, the control cost is high, and the quality of jujube fruit is affected.

The reason is mainly that the reasons for jujube fruit cracking are very complicated, which are caused by various reasons such as variety, climate, soil, management measures, etc., so it is difficult to obtain ideal results by using one or a few anti-cracking technologies