Recently, the reporter interviewed Zhang Zhicheng, a fruit expert and senior engineer of the Northwest A&F University, on how to manage the autumn pomegranate trees.
Zhang Zhicheng, a multi-headed replacement, said that in early September, the poor-yielding tree with a tree age of less than 20 years and normal growth was introduced. The buds were evenly grafted on the upper and middle parts of the canopy with an "single (double) bud abdomen connection) on the erect branches and oblique branches of about 2 cm in diameter. After the survival, the next year will be piled down in April.
Re-apply autumn and strong fruit to promote the tip before mid-September, to re-apply a strong fruit to promote the shoot fertilizer. In the vicinity of the drip line, excavate 100-120 cm long, 30 cm deep and wide 30 cm round fertilization ditch fertilization, each adult fruit tree, cooked manure or manure compost 100-200 kg and superphosphate 1.5 ~ 2 kg, urea 1 ~ 1.2 kg. The young fruit tree is halved and the young tree is halved.
Irrigation, heat preservation, drought resistance and fruit conservation in September, if the orchard is dry, irrigation can be carried out, and weeds, wormwood, vines, etc. are used for ground cover to achieve the purpose of heat preservation, drought resistance and fruit conservation.
Shu Zhicheng said that in late September, it is recommended that the fruit growers cut the 1-3 rounds on the 2~3 branches with a sharp bud cutter for the trees with less results and strong growth in the current year. It is deep in the xylem and promotes flower bud differentiation. After ring cutting, spray 0.2% potassium dihydrogen phosphate and 0.3% urea mixture every 20 days, add 30 ~ 40 μg / ml 2,4-D solution, spray 3 to 4 times continuously, prevent Winter and spring leaves.
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