Slow shoot growth
隐藏域元素占位
Slow shoot growth
Prohexadione-calcium
In autumn, when the autumn shoots just germinate after the peach is picked, spraying 75-300mg/L prohexadione calcium can effectively slow down the growth of autumn shoots, reduce the number of long branches, and promote the accumulation of nutrients to leaves, winter buds and branches.
Paclobutrazol
Soil root application: When peach buds germinate to 3cm long, apply in annular furrows in the root zone of each mature peach tree. The application rate of each plant can use 15% paclobutrazol WP 5g, which can effectively inhibit the growth of new peach tree shoots, reduce nutrient consumption, increase the number of flower buds, shorten the internodes, turn the leaves dark green, increase the chlorophyll content, increase the dry matter of the leaves, and at the same time improve the cold resistance of the flower buds, improve the fruit setting rate, and increase the yield significantly. Foliar spraying: For 3-5 year old almond saplings, in May-June, 400-1600mg/paclobutrazol solution was sprayed twice on the foliar surface, with an interval of 1 month, both of which had the effect of slowing down the growth potential and promoting early flowering and fruiting. , Improve the fruit set rate; the experimental results show that the 1200mg/L paclobutrazol solution sprayed on the leaves has the best effect on relaxing the growth potential, promoting early flowering and improving the fruit set rate. (Note: The dosage and concentration of pesticides should be strictly controlled according to the local environment and peach tree species to avoid excessive inhibition of peach tree growth. Also,paclobutrazol should not be used year after year.)
Chlorflurenol-methy
At about 21d after flowering of "Okubo", "Chunbai" and "Shenzhou Peach", when the new shoots grow to 10-20cm, spray 50-75mg/L chlorflurenol-methy, and the vigorous peach shoots can be effectively controlled , the erect and prosperous long branches are bent and extended, and branched flower buds occur under the curved parts, the flower bud differentiation node is reduced, and the quality is good. The suitable concentration of "Okubo" and "Shenzhou peach" is 50mg/L, and the suitable concentration of "Chunbai" peach is 75mg/L. It has a good application value for young peach trees and northern varieties with strong erectness to prevent the canopy of densely planted peach orchards. After spraying plasticine, the fruit coloring period was advanced by more than 7 days, and the coloring area was increased by 34.6%.
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