Management of young fruit trees in summer and autumn

The fertility and intercropping young fruit trees have smaller roots, and their ability to absorb fertilizers is weak. In order to top-dress fertilizers, it is necessary to master the principle of “diligence for thin fertilizers and frequent meals”. Before the summer solstice of September, fertilizer should be topdressed once per month, and each time a plant applies 2 kilograms of thin human urine or 3% urea (with a small amount of phosphorus and potassium fertilizer) 1 kilogram. In October, a circular fertilization ditch with a depth of 60 cm should be excavated at the outer edge of the canopy projection. Each plant should be applied with 25 kg of organic fertilizer and 1 kg of phosphorus and potassium fertilizer. Planting melons, vegetables, and leguminous crops in open fields other than 1 meter of plant canopy within 3 years of planting can improve soil, promote fruit tree growth and increase income, but intercropping high-stalk crops, coiled crops, and perennial straw must be avoided. crop.

Young shoots and young fruit trees are growing fast in summer and autumn, sprouting on the trunk, and eradicating them every year to reduce nutrient consumption. In the year of colonization, 3 to 5 first-stage buds with balanced distribution are selected to be the main branches. After the summer shoots grow to about 40 cm, they are picked up to promote the growth of the second branch. When the second branch grows to about 45 cm. , carry out again topping. After 2 to 3 times of topping, the canopy skeleton can be formed. From the following year, we must choose to keep the vice main branch and the small side branch, and to carry out the necessary topping and wipe buds, in order to form a high yield canopy early.

Intertillage and Drought-Resistant Weeds are abundant in summer and fall seasons, and most of them are high-temperature and drought. We must do a good job of intertillage, weeding and flood irrigation. Weeding should be carried out once in late summer and early fall. The canopy projection must be covered with subtilis or straw. The canopy projection can be deep ploughed to maintain soil looseness and good air permeability, and to maintain the temperature and increase the organic matter. The cultivator can be carried out after rain or after irrigation to cut the topsoil capillary and reduce the evaporation of water. When the temperature is ≥35°C or when the leaves of plants have curling, sprinkler irrigation, drip irrigation, furrow irrigation, or even artificial watering must be used for drought resistance. Irrigation must be avoided at high temperatures at noon, so as to avoid causing plants to lose water and wilt.

Disease prevention and pest control Young fruit trees have a weak ability to resist pests and diseases. Therefore, pest control and disease prevention should be promptly implemented to achieve “prevention-oriented, integrated prevention and treatment”. It is necessary to select effective pesticides or adopt other measures for prevention and control of fruit trees and pests. For the disease, it can be sprayed with thiophanate 600-800 times, carbendazim 500-600 times, dexamethasone 500 times, or 1% Bordeaux. For pests, dichlorvos, trichlorfon 800-fold, enemy-killed 2000-3000-fold, and dimethoate 1500-fold were used for spraying.

Health Daily Care

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