How to control the shoot and promote the peach blossom
The florists of many kinds of peach blossoms called to ask how to make the peach blossoms stop growing and form more buds. The main reason affecting flower bud differentiation is the contradiction between reproductive growth and vegetative growth. When vegetative growth is too prosperous, it will seriously affect reproductive growth, that is, flower bud differentiation. Therefore, in the period of flower bud differentiation (from late May to before defoliation), attention must be paid to the balance between them in order to ensure the normal differentiation of flower buds.
1. From late May to June, peel off the top of 10-12 leaves in autumn shoots to promote flower bud differentiation, promote branching, or spray control.
2. From late August to September, the growth period of autumn shoots should be sprayed once (with 40 jin of water per packet) to ease the intensity of vegetative growth, and from late September to early October, it should be sprayed again (20-30 jin per packet of water). The aim is to make the branches stop growing before the middle of October, and the trees that are still growing should be sprayed quickly.
3. Fertilizer and water production began in the middle and last ten days of September to control shoot growth.
4. when yellow leaves and fallen leaves appear prematurely, spray agricultural nucleotides + 0.2% nitrogen fertilizer.
5. After the branches stop growing, they can be sprayed 1-2 times for better flower bud differentiation, or agricultural nucleotides + 0.2% potassium dihydrogen phosphate.
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Occurrence and Control of Yellow Peach Diseases
1. Peach leaf shrinking disease: the occurrence of the disease is closely related to the climate in early spring, such as low temperature (10 ~ 16 °C), long duration, high humidity and serious disease. When the temperature is above 21 °C, the disease basically stops developing. 2. Peach bacterial perforation: the pathogen of the disease overwinters in the diseased tissues of branches. After the beginning of spring, with the increase of temperature, the bacteria in the diseased tissue began to move. After the peach tree blossomed, the diseased spot epidermis ruptured, the diseased spot overflowed from the diseased tissue, and the bacteria spread through wind, rain and insects.
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Magnolia mandshurica
Manglietia mandshurica is a large evergreen tree of Magnoliaceae and Magnolia, which is also known as Manglietia mandshurica because of its flowers and fruits. The shape of the tree is tall and straight, the leaves are beautiful and strange, and the flowers are fragrant. Manglietia mandshurica bark dark gray, lenticellate, smooth. Twigs, buds, young leaves, petioles and fruit pedicels are densely covered with brown tomentose, and the leaves are thick leathery. The flowering period is from the end of April to the middle of May, and the fruit ripening period is in the middle and late October. The aggregate fruit is ovoid and the fruit is verrucous protruding on the back. Manglietia mandshurica is naturally distributed in Guangdong, Guangxi, Fujian, Hunan and other places in China.
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