Nanguo pear fruit thinning agent as well as preparation method and application method thereof

Abstract

The invention discloses a Nanguo pear fruit thinning agent as well as a preparation method and an application method thereof. The Nanguo pear fruit thinning agent is prepared from the following raw materials in parts by weight: 0.01 part of naphthylacetic acid, 0.4 part of paclobutrazol, 10 parts of calcium chloride, 2 parts of potassium dihydrogen phosphate and 1000 parts of water. The inventionfurther discloses the preparation method of the Nanguo pear fruit thinning agent; the preparation method comprises the following steps: S1, weighing all the raw materials in parts by weight for lateruse; S2, dissolving the paclobutrazol, calcium chloride and potassium dihydrogen phosphate, which are weighed in S1, into respective saturated water solutions respectively; dissolving naphthylacetic acid weighed in S1 with ethanol to prepare a naphthylacetic acid saturated solution; then mixing all the solutions; adding the water weighed in S1 and diluting; uniformly stirring to prepare the fruitthinning agent. The fruit thinning agent prepared by the method is used for spraying and wetting all flowers of Nanguo pear trees at a full-bloom stage of Nanguo pears and the effects of improving thefruit thinning rate and the calyx removing rate can be improved; stone cells are reduced, the production of the Nanguo pears is facilitated and the effects of improving the quality and increasing theeffect are realized.

Description

technical field [0001] The invention belongs to the technical field of fruit tree cultivation, and in particular relates to a Nanguo pear fruit thinning agent, a preparation method and a use method thereof. Background technique [0002] Nanguo pear is a specialty fruit in Liaoning Province. It is well-known at home and abroad for its rich aroma, delicate and juicy. Under normal circumstances, Nanguo pears are easy to flower, and the amount of flowering is large, so that the tree body consumes too much nutrients, and it is easy to form large and small annual results, and the fruit quality is low. Therefore, fruit thinning is an essential in the production process of high-quality fruit. Cultivation measures. Fruit tree thinning mainly includes artificial fruit thinning and chemical thinning. Manual fruit thinning is time-consuming and labor-intensive, and the labor cost is high. Due to the concentrated operation time, it is often not completed in time, and the thinning effect...

AI Technical Summary

Problems solved by technology

In the previous research, it has been found that lime sulfur, naphthalene acetic acid, etc. are good thinning agents, which have good thinning effects on pear trees and other fruit trees, but will also have adverse effects on the quality of pear fruit and tree vigor

According to field observations, the single application of lime sulfur and naphthalene acetic acid can improve the removal rate of Nanguo pear, but it will lead to an increase in the proportion of persistent calyx fruit, hard pulp, increased stone cells, and tree vigor.

Nanguo pears have some persistent sepals in the fruit. Usually, the persistent calyx fruit has rough skin, many stone cells, thick meat, and light flavor, which leads to a decline in fruit quality and has a serious negative impact on the commercial value of pears.