The invention discloses a method for controlling fruit
cracking of pomelo through sequential management. According to the invention,
nutrient elements and pesticides are timely applied according to physiological cycle and pest occurrence characteristics of the pomelo in a year, so fruit
cracking and pest occurrence of the pomelo are reduced, wherein the physiological cycle of the pomelo in a year successively comprises a spring
shoot period, a flowering period, a physiological fruit drop period, a young fruit period, a fruit harvest period and a
postharvest reconditioning period. The method comprises the following steps: S1, before the spring
shoot period, i.e., during the
postharvest reconditioning period, applying a base
fertilizer and trace elements; S2, during the spring
shoot period, diluting the
fertilizer with water by 600 to 800 times, carrying out foliage spraying for 3 to 6 times; and S3, diluting the
fertilizer by 800 to 1000 times, and spraying 100 to 200 kg per mu of the diluted fertilizer onto the root part of a
fruit tree during the spring shoot period. The method provided by the invention can efficiently prevent and control
biting pests from occurrence in a pomelo
orchard, controls the fruit
cracking rate of the pomelo to be 5% or less at the same time, has the advantages of simplicity, practicability, significant pest-control and cracking-control effects, etc., and is applicable to popularization.