T/ZHDZ 008-2019 Active Group standards

T/ZHDZ 008-2019 Seedling cultivation and selection techniques for Zhanhua winter jujube in Zhanhua, Shandong province

Publish Date: 2019-10-17 Implement Date: 2019-11-16 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZHDZ 008-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Forestry

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2019-10-17

Implement Date: 2019-11-16

Scope

Main technical content: Zhanhua winter dates mainly use grafting as the main reproduction method. There are 3,000–5,000 seedlings per mu. The winter date seedlings cultivated by grafting have the characteristics of fast seedling growth, large growth quantity, and maintaining the excellent characteristics of the variety. 3.1 Stock Cultivation The commonly used grafting stocks for winter dates include native stocks and sour dates. Native stocks refer to the root suckers and natural seedlings of ordinary date trees. Sour dates can use wild seedlings or cultivate natural seedlings in nurseries. 3.1.1 Sour Date Seedling Cultivation 3.1.1.1 Seed collection and processing. Collect fully mature sour date fruits of the same year, remove the shell, and store them in a cool place. 3.1.1.2 Nursery preparation. Select sandy loam or loamy soil with good soil fertility and irrigation conditions. After leveling, apply more than 5,000 kg of well-rotted organic fertilizer per mu, plow to a depth of 20 cm, and prepare beds for use. 3.1.1.3 Grafting stock seedling cultivation. Sow seeds in a double-row dense planting pattern, with a distance of 80–100 cm between double rows and a distance of 30 cm within double rows, and a spacing of 15–20 cm per seedling. Use 1–1.5 kg of seeds per mu, cover the soil with a thickness of no more than 2 cm, and then cover with a film. After the grafting stock seedlings emerge, make holes in the film for seedling training for 24 hours, then release the seedlings and compact the film with a small amount of soil. When the seedlings reach about 6 true leaves, thin the seedlings, leaving 3,000–5,000 seedlings per mu. During the seedling growth period, timely weeding, watering, and pest control should be carried out. When the grafting stock reaches 40 cm in height, prune the top to control its height and promote thickening. 3.2 Grafting 3.2.1 Dingzi-shaped bud grafting with woody stock 3.2.1.1 Grafting stock preparation. Select robust and