First, we must do it early, pruning it as soon as possible after harvesting the nectarine fruits, the tree will germinate new branches early, the crown will recover early, the flower buds will differentiate early, and the flower buds will be of high quality.
Second, fertilizer should be added in time, and fertilization and irrigation should be carried out immediately after pruning. Apply 0.25 kg of urea, 0.5 kg of superphosphate, 0.5 kg of potassium sulfate and 5 to 10 kg of organic fertilizer to each plant. Water thoroughly after fertilization. Spray fertilizer on the leaves during the growth period. Pay attention to the iron deficiency yellowing caused by the rapid growth of the tree. Iron fertilizer should be supplemented.
Third, it is necessary to control crowns and promote flowers in a timely manner. 45 to 60 days after harvesting, when the length of new shoots reaches more than 30 cm (approximately from late June to early July), spray 15% paclobutrazol 200 times. 1 time, then spray once every 10 days, 3 times in a row.