Planting technique of Golden Sun Apricot
Row spacing. The golden sun tree is moderate in potential and can be closely planted properly. It is suggested that the planting branches in the field should be 3 m x 5 m, 44 plants per 667 square meters, or 3 meters x 4 meters, 55 plants per 667 square meters. In hilly and mountainous areas, it is appropriate to 2 meters x 4 meters, 83 plants per 667 square meters, or 3 meters x 4 meters. The row spacing of branches planted in the protected field was 1 m x 2 m, 330 plants per 667 m 2, or 0.8 m x 2 m, 416 plants per 667 m 2.
The seed setting rate of Jinyang self-pollination is low, and the fruit setting rate of cross-pollination is high. Therefore, the golden sun has a better yield under the condition of pollination tree. Pollination trees should choose varieties with the same flowering period. The ratio of pollinated varieties to main varieties is not less than 1:8.
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Attention should be paid to spraying fruit before ripening.
The banned pesticides are 1605, methyl 1605, fenitrothion, monocrotophos, methamidophos, triathion, omethoate, zinc phosphide, aluminum phosphide, carbofuran, formearsine, chlordimeform, aldicarb, lindane and other pesticides. Dicofol can not be used in fruit trees because of its high residue of DDT. Note that the last spray in the safety period should not be less than 7 days from harvest: 50% dichlorvos EC, 40% dimethoate EC, 50% carbendazim wettable powder, 50% prohydantoin wettable powder, 20% chlorphenicol.
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Bacterial perforation of peach
[distribution] all over the country, especially in coastal areas, lakeside areas, orchards with poor drainage and rainy years, often occur seriously. If the prevention and control is not timely, it is easy to cause a large number of fallen leaves, reduce the accumulation of nutrients, and affect the formation of flower buds. It not only weakens the tree potential and reduces production in the same year, but also affects the results of the second year, resulting in a poor harvest. [symptoms] small watery, yellowish spots appear on the leaves, then expand into red spots, then turn brown, the edge is darker than the center, and there is a translucent yellowish halo around the edge.
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