Jinling long jujube
Jinling long jujube, large fruit, long cylindrical, longitudinal diameter 4.30cm, transverse diameter 2.98cm, the average single fruit weight is 20.60g, the maximum is 28g. It matures 20 days earlier than winter jujube. The pulp is dense, crisp and juicy, with 31.15% total sugar and 0.43% total acid. Jinling round jujube and Jinling long jujube, collectively known as "Chaoyang Jinling jujube", are the most cold-tolerant new varieties of large fruit fresh jujube in China. After nearly ten years of breeding research, it was appraised and approved by Liaoning Provincial Department of Science and Technology and Liaoning Provincial Forest Variety examination and approval Committee on September 19 and September 24, 2002. The Liaoning Provincial Committee of the Communist Party of China and the Liaoning Provincial Government have written books, and the Liaoning Provincial Forestry Department has issued articles to promote it throughout the province. At present, it has been introduced to Inner Mongolia, Hebei, Shanxi, Shaanxi, Beijing, Ningxia, Gansu, * and other places. It fills the gap that there is no cold-resistant big fruit type fresh jujube varieties north of 40 °north latitude in China.
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Cultivation of apricot
Soil preparation, base fertilizer application and bedding are the same as ordinary spinach. Spring should be timely early sowing, early sowing and early harvest, February-March sowing is appropriate. Apricot can be direct seeding can also be transplanted seedlings, due to weak root regeneration ability, slow seedlings after transplantation, so more direct seeding based. There are sowing, drilling and dibbling, and dibbling is more. First open the hole 2-3 cm deep, row spacing 50×30 cm, sow 4-5 seeds per hole, seed coat hard water permeability is poor, it is advisable to soak for 24 hours before sowing, generally it takes more than 20 days to emerge, when the seedlings have 4-5 true leaves, they can be picked up
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Identification and Control of Myzus persicae
Myzus persicae is very harmful, adults and nymph gather on the back of leaves and young shoots to absorb sap, the injured leaves are irregularly curled to the back, affecting the growth of new shoots of peach trees and spreading viruses. Myzus persicae can harm more than 300 species of plants and is one of the most difficult pests to treat. Winged viviparous female aphids are green, yellow-green, brown and auburn, different colors depending on host; wingless viviparous female aphids are green, yellow-green, apricot yellow and auburn; nymph is small and light red; eggs are mostly laid on the branches, axils and twigs of host
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