Application of paclobutrazol in peach trees
2022-10-21 09:05:22
Paclobutrazol plant growth retardant, its morphological effect is to delay the longitudinal elongation of the crop, strengthen the lateral growth, increase the number of tillers or branches, thicken the stems, and dwarf the plants; the physiological effect is to increase the content of chlorophyll, protein and nucleic acid. , Decrease the content of gibberellins in plants, but also increase the release of ethylene, and decrease the content of indole acetic acid. The use of paclobutrazol in peach trees is described below:
Application time. Wang Chang peach trees can be applied to the soil in the spring flower bud expansion period, early application of early efficacy, in order to control the growth of new shoots, improve the fruit setting rate. Phyllostachys sinensis grows in the lush growth period (about 20 centimeters of shoot growth) in order to control its occurrence and growth. Phyllostachys edulis grows in the trees with 500-1000 mg/kg paclobutrazol in order to improve flower bud quality. It should be noted that when applying pesticides, 1-2-year-old saplings and weakly growing trees should not be applied.
Application amount. The amount of pesticide application is mainly determined by factors such as the age of the tree, the strength of the tree, the size of the canopy, and the breed variety. Wangshu and big trees should be applied in multiple ways, but vice versa, yellow-fleck peaches in late-type gold and yellow dew should usually be used 10-20% less than southern peaches such as Shanghai water honey and Okubo. For the first application, 0. 50-1 g (approx. 15% paclobutrazol WP product volume) of the canopy projection per square meter was applied.
After 3 days of soil application, the soil has obvious effects. The effect is most obvious in the first year, and it will decrease in the future. How to apply pesticides in the second year should be based on the growth and development of peach trees. After the first year of application, the middle and long fruiting branches formed by peaches account for about 30% of the total branches, and a small amount of secondary branches are used for pumping. . It shows that the application amount is appropriate, and that the application amount in the next year is about 50% of the application amount in the previous year; if the middle and long-sized fruit branches that are drawn on the peach tree account for a large proportion, they have also drawn more and more prosperous times. Branches indicate that there was less application of pesticides in the previous year, and the amount of pesticides applied in the following year should be more than 60% of the previous year's application rate; if the results of the pumping were many short fruit branches, fruit-like fruit branches, medium and long fruit branches Weak and sagging, indicating that the application amount is too large, should not be applied or less applied in the next year. If the application amount is too large, the peach tree will be inhibited from growing too much. It is necessary to find it early and spray 50 mg/kg of gibberellin in time to reduce its inhibition.
Application method. As confirmed by most experts, the application of paclobutrazol to soil is best. The method is to dig an annular groove with a depth of 10 cm and a width of 30-50 cm inside the outer edge of the canopy projection, diluting the agent with water to 1000-2000 times, and then evenly spraying the medicinal solution. In the annular groove, the soil is covered with water. During the spraying process, it is necessary to constantly stir and mix the good liquid to avoid accumulation, resulting in uneven application and affecting the effect after application. It is also possible to excavate the ring ditch according to the above method, mix the powder with fine soil, spread it evenly in the ditch, mix well with smashing and smashing, and cover the soil to make watering.
Management after application. After application of paclobutrazol in peaches, the formation of flower buds increased, the fruit setting rate increased, and the yield increased. Therefore, it is necessary to strengthen soil, fertilizer, and water management to meet the needs of its growth results. In winter pruning, it is necessary to adjust the amount of flowers, and appropriately increase short and short cuts, and eliminate short and thick fruit branches and fruit-like fruit branches. After fruiting, fruit thinning should be carried out to adjust the amount of results so as to prevent excessive results, affect fruit quality, weaken the tree vigor, and speed up the peach tree.
Application time. Wang Chang peach trees can be applied to the soil in the spring flower bud expansion period, early application of early efficacy, in order to control the growth of new shoots, improve the fruit setting rate. Phyllostachys sinensis grows in the lush growth period (about 20 centimeters of shoot growth) in order to control its occurrence and growth. Phyllostachys edulis grows in the trees with 500-1000 mg/kg paclobutrazol in order to improve flower bud quality. It should be noted that when applying pesticides, 1-2-year-old saplings and weakly growing trees should not be applied.
Application amount. The amount of pesticide application is mainly determined by factors such as the age of the tree, the strength of the tree, the size of the canopy, and the breed variety. Wangshu and big trees should be applied in multiple ways, but vice versa, yellow-fleck peaches in late-type gold and yellow dew should usually be used 10-20% less than southern peaches such as Shanghai water honey and Okubo. For the first application, 0. 50-1 g (approx. 15% paclobutrazol WP product volume) of the canopy projection per square meter was applied.
After 3 days of soil application, the soil has obvious effects. The effect is most obvious in the first year, and it will decrease in the future. How to apply pesticides in the second year should be based on the growth and development of peach trees. After the first year of application, the middle and long fruiting branches formed by peaches account for about 30% of the total branches, and a small amount of secondary branches are used for pumping. . It shows that the application amount is appropriate, and that the application amount in the next year is about 50% of the application amount in the previous year; if the middle and long-sized fruit branches that are drawn on the peach tree account for a large proportion, they have also drawn more and more prosperous times. Branches indicate that there was less application of pesticides in the previous year, and the amount of pesticides applied in the following year should be more than 60% of the previous year's application rate; if the results of the pumping were many short fruit branches, fruit-like fruit branches, medium and long fruit branches Weak and sagging, indicating that the application amount is too large, should not be applied or less applied in the next year. If the application amount is too large, the peach tree will be inhibited from growing too much. It is necessary to find it early and spray 50 mg/kg of gibberellin in time to reduce its inhibition.
Application method. As confirmed by most experts, the application of paclobutrazol to soil is best. The method is to dig an annular groove with a depth of 10 cm and a width of 30-50 cm inside the outer edge of the canopy projection, diluting the agent with water to 1000-2000 times, and then evenly spraying the medicinal solution. In the annular groove, the soil is covered with water. During the spraying process, it is necessary to constantly stir and mix the good liquid to avoid accumulation, resulting in uneven application and affecting the effect after application. It is also possible to excavate the ring ditch according to the above method, mix the powder with fine soil, spread it evenly in the ditch, mix well with smashing and smashing, and cover the soil to make watering.
Management after application. After application of paclobutrazol in peaches, the formation of flower buds increased, the fruit setting rate increased, and the yield increased. Therefore, it is necessary to strengthen soil, fertilizer, and water management to meet the needs of its growth results. In winter pruning, it is necessary to adjust the amount of flowers, and appropriately increase short and short cuts, and eliminate short and thick fruit branches and fruit-like fruit branches. After fruiting, fruit thinning should be carried out to adjust the amount of results so as to prevent excessive results, affect fruit quality, weaken the tree vigor, and speed up the peach tree.
G Spot Vibrator,Wireless Remote Control G Spot Vibrators,G Spot Massagers Pussy Masturbating Vibrator,G-Spot Multi Speed Vibrator Sex Toy
Shenzhen Dongchen Hey E-commerce Co.,Ltd. , https://www.xxsexytoy.com