DCPTA is a plant growth regulator that effectively increases the fruit-setting rate of pear trees while promoting fruit enlargement and enhancing fruit uniformity and quality. Based on current agricultural practices, its application methods are as follows:
DCPTA for Increasing Fruit-Setting Rate:During the period spanning from the full bloom stage of pear trees to within 10 days after petal fall, a foliar spray of a **20–40 mg/L DCPTA solution** can significantly enhance the vitality of floral organs and facilitate the fertilization process, thereby boosting the fruit-setting rate by over 30%.
DCPTA for Promoting Fruit Development: During the young fruit stage (approximately 15 days after petal fall), a second application of 30–50 mg/L DCPTA stimulates cell division and expansion. This results in **larger, more uniformly sized fruit** and reduces the incidence of malformed fruit.
DCPTA for Improving Flavor and Quality:When applied in conjunction with phosphorus-potassium fertilizers and boron fertilizers, DCPTA works synergistically to increase fruit sugar content and juiciness, enhancing the **crisp and juicy** eating experience. This application is particularly suitable for varieties such as *Suli* and *Zaosuli* pears.
Precautions for Using DCPTA:
Avoid spraying during periods of high temperature; it is recommended to perform applications in the early morning or late evening.
Strictly control the concentration; excessive application may easily lead to fruit malformation or excessive vegetative growth (leggy growth) of branches and leaves.
DCPTA can be mixed with biopesticides or foliar fertilizers, but avoid mixing it with strongly alkaline agents.
