Chilling-free cultivating method of peaches in greenhouse

Abstract

The invention discloses a chilling-free cultivating method of peaches in a greenhouse. Through a series of chilling-free cultivating technological means including the step of promoting flower buds to fully differentiate in advance, the step of spraying nutritional agents, shielding light and closing a plastic shed so as to make leaves fall, the step of spraying dormancy-breaking chemicals, controlling the temperature and promoting flowering, the step of spraying fruit-setting and branch-promoting agents to prevent secondary dormancy, the step of reasonably regulating and controlling the temperature and humidity, the step of manually compensating for light and the step of applying carbon dioxide fertilizer, the mature period of peaches in the greenhouse is greatly brought forward. The method has the advantages of being wide in suitable variety range, high in operability, accurate in regulation and control, high in increased benefit and the like, is suitable for being applied to greenhouse precocity promoting cultivation of most of middle-early ripen peaches with a chilling requirement of 700 hours or fewer in present production, also has quite high guidance significance in regulating the mature period of other northern fruit trees, and makes peaches in the greenhouse ripen as early as possible and appear on the market before the spring festival, the peaches can meet the requirements for the spring festival consumer market and sightseeing and picking, the sale price is several times to ten times or more the price of peaches appearing on the market in April and May, and the benefit increase is quite remarkable.

Description

technical field [0001] The invention relates to a method for cultivating fruit trees, in particular to a method for cultivating protected peaches without cold. Background technique [0002] For a long time, for northern deciduous fruit trees, they must go through a long period of low temperature during winter dormancy, and only after a certain amount of low temperature accumulation can continue to germinate and bloom and enter the next round of growth and development, otherwise the peach trees will not bloom, or bloom greatly. Delayed and untidy. This "a certain amount of low temperature" accumulation is called cooling demand. According to the traditional understanding, fruit trees start to go dormant and cooling needs start to accumulate at the same time, that is, fruit trees in the north begin to go dormant after the leaves fall around the beginning of November, and cooling needs begin to accumulate slowly. But in fact, the dormancy of fruit trees starts much earlier tha...

AI Technical Summary

Problems solved by technology

[0005] One is that the requirements for the cooling capacity of the varieties involved are extremely strict. They must be extremely low cooling capacity varieties that require no more than 200 hours of cooling capacity. There are very few such varieties, and the cooling capacity of most early-maturing peach varieties in production Between 400-700 hours, far higher than the required standard, so the guiding significance for actual production is not high;

[0006] Second, these ultra-low cooling varieties generally have a bad taste, high acidity, low sweetness, and poor consumer acceptance;

[0007] The third is that the cost of cooling equipment required is high, and ordinary fruit farmers cannot afford it, which is not conducive to popularization;

[0008] Fourth, the sleep-breaking effect is not complete, and the formula and application technology of sleep-breaking agents need to be further strengthened;

[0009] Fifth, the temperature, humidity, and light regulation in the facility are not good, and the germination of flowers and leaves is not coordinated. Secondary dormancy phenomenon, resulting in serious fruit drop phenomenon, less fruit, small fruit, low yield, and often lead to abnormal fruit ripening or even extinction