1, clear garden except leaves. Many of the pathogens and pests that damage the apricot trees are wintered in litter and weeds and become the second source of new diseases and pests. Therefore, the apricot orchard and nearby litter, stiff fruit, and weeds are cleaned and concentrated and burned or burned.
2, autumn basal fertilizer. The apricot tree has a short dormancy period in winter, and the fruit ripening time after flowering is shorter than that of other tree species. At the same time as fruit enlargement and new shoots, it is required that sufficient nutrients be provided in the early stage. Autumn fat is crucial for the growth and development of apricot trees, and the amount should be concentrated. In general, 1 ton of fruit is produced, 1 ton of high-quality soil-fertilizer is applied, and 0.5% to 1% of standard nitrogen fertilizer and 0.5% of phosphate fertilizer are applied. Fertilization methods are radiation or ring groove application. Soil miscellaneous fertilizers should be applied to soil below 20 cm. Where water is available immediately after fertilization, it will facilitate root growth and nutrient absorption. Spraying 2~3 times of 0.5% urea with 50mg/L gibberellin can prevent premature leaf aging and increase nutrient storage capacity.
3, deep between the lines. By deep-turning the apricot orchard in autumn and winter, it can not only ripen the loose soil and improve the physicochemical properties of the soil, but also can turn the insects hidden in the soil layer under the canopy to overwinter for the winter and allow the birds to feed or freeze. The depth scale is generally 60 to 70 cm, which is better than the deeper distribution layer of the root system.
4, pouring enough frozen water. Winter irrigation before and after "Xuexue" promotes delayed flowering in spring and can prevent spring frost damage and increase fruit setting rate.
5, trunk white. Apricot tree trunks are painted white in winter, which not only controls sunburn and freezing injury, but also treats trunk diseases. The proportion of whitening agent is: 10 parts of quicklime, 2 parts of lime sulfur, 1 to 2 parts of salt, 2 parts of clay and 36 to 40 parts of water. Add insecticide. Liquify the lime, filter out the gravel, pour the salt that has been removed, mix with lime sulfur and clay. When coating, it should not be lost and dried, and it should not fall off.
6, cover straw. In the apricot field in winter, straw mulching can be used to increase soil temperature, prevent physiological drought and freezing injury, thereby reducing abortion of the pistil and improving flower bud quality. Covering materials available wheat straw, weeds, leaves and so on. Apricot covers a total of 26.7 tons for every 666.7 square meters, and 1 to 1.2 tons for a partial covering. The closed apricot garden should be fully covered with grass, and the young apricot garden should be partially covered with grass (tree or tree line). Grass cover thickness is generally 15 to 20 cm. In areas with large winds, after the grass is covered with grass, the soil is pressed to prevent the wind from spreading. It is advisable to apply nitrogen (0.2 to 0.6 kg per plant) before covering the grass in order to maintain a suitable carbon to nitrogen ratio.
2, autumn basal fertilizer. The apricot tree has a short dormancy period in winter, and the fruit ripening time after flowering is shorter than that of other tree species. At the same time as fruit enlargement and new shoots, it is required that sufficient nutrients be provided in the early stage. Autumn fat is crucial for the growth and development of apricot trees, and the amount should be concentrated. In general, 1 ton of fruit is produced, 1 ton of high-quality soil-fertilizer is applied, and 0.5% to 1% of standard nitrogen fertilizer and 0.5% of phosphate fertilizer are applied. Fertilization methods are radiation or ring groove application. Soil miscellaneous fertilizers should be applied to soil below 20 cm. Where water is available immediately after fertilization, it will facilitate root growth and nutrient absorption. Spraying 2~3 times of 0.5% urea with 50mg/L gibberellin can prevent premature leaf aging and increase nutrient storage capacity.
3, deep between the lines. By deep-turning the apricot orchard in autumn and winter, it can not only ripen the loose soil and improve the physicochemical properties of the soil, but also can turn the insects hidden in the soil layer under the canopy to overwinter for the winter and allow the birds to feed or freeze. The depth scale is generally 60 to 70 cm, which is better than the deeper distribution layer of the root system.
4, pouring enough frozen water. Winter irrigation before and after "Xuexue" promotes delayed flowering in spring and can prevent spring frost damage and increase fruit setting rate.
5, trunk white. Apricot tree trunks are painted white in winter, which not only controls sunburn and freezing injury, but also treats trunk diseases. The proportion of whitening agent is: 10 parts of quicklime, 2 parts of lime sulfur, 1 to 2 parts of salt, 2 parts of clay and 36 to 40 parts of water. Add insecticide. Liquify the lime, filter out the gravel, pour the salt that has been removed, mix with lime sulfur and clay. When coating, it should not be lost and dried, and it should not fall off.
6, cover straw. In the apricot field in winter, straw mulching can be used to increase soil temperature, prevent physiological drought and freezing injury, thereby reducing abortion of the pistil and improving flower bud quality. Covering materials available wheat straw, weeds, leaves and so on. Apricot covers a total of 26.7 tons for every 666.7 square meters, and 1 to 1.2 tons for a partial covering. The closed apricot garden should be fully covered with grass, and the young apricot garden should be partially covered with grass (tree or tree line). Grass cover thickness is generally 15 to 20 cm. In areas with large winds, after the grass is covered with grass, the soil is pressed to prevent the wind from spreading. It is advisable to apply nitrogen (0.2 to 0.6 kg per plant) before covering the grass in order to maintain a suitable carbon to nitrogen ratio.
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