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大棚桃树冬春管理技术(Management technique of peach trees in spring and winter in Greenhouse)
大棚桃树冬春管理技术(Management technique of peach trees in spring and winter in Greenhouse)
Management technique of peach trees in spring and winter in Greenhouse
2006-12-31 information source: Changchun Agricultural Information Center
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The greenhouse peach must undergo a certain low temperature time to meet its chilling requirements before warming up and releasing dormancy. Artificial peach trees must be forced to sleep in greenhouse, so that the peach trees can germinate, grow and blossom normally after physiological changes through a series of low temperature exercises.
First, when the pest control begins to heat up, first spray an insecticide, kill the overwintering red spider, aphid and other pests, and pay attention to spraying evenly. At the beginning of germination spraying 3 ~ 5 Baume lime sulfur mixture, to exterminate all bacteria.
Two, soil, fertilizer, water management, 10 days after the temperature of fertilization, watering. If no fertilizer or fertilizer, heating after fertilization 1 organic fertilizer, and applying a small amount of fertilizer, fertilizer after irrigation 1 floods, the drenched, 1 times to be slightly dry soil scarification.
Three, the purpose of covering plastic film is to increase soil temperature.
First, the temperature management can not rise too fast, too high. If excessive heat, the temperature is too high, will cause the peach bud flowering fast, fast, often appear reversed after flower bud first, the priority for the storage of leaf nutrients, the fruit setting rate, seriously affect the fruit development and fruit enlargement, resulting in early fall. The heating is divided into 3 steps, the first step, the day only took 1/3 grass thatch across the two pull one, the temperature in the shed during the day 13 to 15 DEG C, the night is maintained at 6 to 8 DEG C, which lasted 2 ~ 3 days. The second step, the day on 1/2 grass with a pull, vibration, temperature of greenhouse day
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