Early maturing pear post management technical points

Our province is the advantages of early -mature pear, especially in southern Jiangsu, mainly precocious pear such as Cuiguan and Su Cui 1, and the proportion of medium and late maturity varieties is small. After the harvest of the fruit is completed, the tree body is transferred to the accumulation of nutrients, and the assimilation nutrients manufactured by the leaves are stored in the roots, branches, and buds for the growth and development needs of the following year.

If the management is not good in this period, the premature failure of the leaves will occur, which will affect the accumulation of nutrients in the tree storage, weaken the trees, and cause some production reduction and fruit quality to decline in the next year. No flowers can be opened, no results.

1. Tree management

July is the critical period of pear flower bud differentiation. Pulling branches can be effectively forming flowers before the end of July. After harvesting, the backbone of the branches and branches with a narrow bonus and branches in the middle and late July after harvesting will be stretched or supported. The corners of the branches, ease the branches, and promote the differentiation of flower buds. After the fruit collection is finished, timely delete the backbone branches, upright and strong branches, damage and decaying branches, dense cluster branches, and diseases and insects as harmful branches, in order to improve the group and crown ventilation and light transmission conditions.

Second, nutrient management

In order to accelerate the recovery of trees after harvesting, generally before and after the end of the fruit harvest, the combination of root fertilization should be combined with outer pursuit of the root, and the nutrition of the tree body should be supplemented in a timely manner. The root can be applied to 0.3 ~ 0.5 kg urea + 0.25 kg of potassium sulfate or 1.5 ~ 2 kg of calcium and magnesium phosphorus (effective ingredients: calcium, magnesium, phosphorus) other equivalent content of fertilizer. After the fruit is harvested, the high temperature and dry season should be paid attention to the fertilization method and time. The root fertilization should be used to apply liquid or sprinkle before rain to prevent fertilizer prevent a large amount of fallen leaves.

3. Water management

In summer, high temperatures, large steaming volume, high temperature in continuous sunny days, and no timely watering can occur in water dehydration, causing the old leaves to fall off. The soil of the garden should be perforated every 5-7 days to meet the water of the tree body to meet the moisture of the tree body to meet the water of the tree. Absorbing demand. Watering should be carried out in the evening or at night. High -temperature watering during the day will affect the absorption function of the root system and even cause physiological dehydration.

Fourth, diseases and insect worship prevention

From July to August, high temperature and humidity are high incidence of pear anthracnose and dark spots, especially in recent years, which has high incidence of anthracnose in recent years, causing a large number of leaves. If it encounters a continuous sunny day, the red spider will be killed in large quantities. Ye Baohua.

After the leaf is collected, the yellowing of the inner bore of the arid, the inner bore of the arid, and the lower leaves fall off

Pharmacy can be used for sterilizers such as benthylmethol, propyoprazole, pentrazole, and Diesen and zinc;

The leaves fall off and return to the green second flowering

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