T/ZHDZ 003-2022 Active Group standards

T/ZHDZ 003-2022 Garden construction and planting techniques for Zhanhua winter jujube

Publish Date: 2022-06-16 Implement Date: 2022-07-01 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 003-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2022-06-16

Implement Date: 2022-07-01

Scope

Main Technical Content: 3.1 Site Selection To produce high-quality Zhanhua winter dates, the site selection should be in an area with fresh air, clean water, and unpolluted soil. The site should be free from pollution sources (such as chemical plants, pesticide factories, and paper mills), and the soil should not contain natural harmful substances. It should have high fertility, with mineral elements within normal ranges and no pesticide residue contamination. The soil and air quality of the site must meet national standards. 3.2 Site Planning and Design Before planting, conduct site planning and design, including forest protection houses, roads, irrigation and drainage channels, subdivisions, and ancillary facilities. Arrange them rationally and draw a floor plan. 3.3 Soil Improvement and Planting Before planting, level the land and improve saline-alkaline soils in flat areas. For mountainous and hilly regions, construct level terraces. 4 Production Environment Requirements The area is located in the heart of the Yellow River Delta, bordered by the Bohai Sea to the north and the Yellow River to the south (latitude 37°34′–38°11′, longitude 117°45′–118°21′). The climate features distinct seasons and belongs to the temperate continental monsoon climate. In winter, the prevailing wind is north, while in summer it is south. In spring and autumn, the wind direction changes frequently, forming a relatively independent climate system. 4.1 Sunlight The average annual sunshine duration is 2,627.3 hours, with an average sunshine rate of 61%. The total solar radiation is 126.3 kcal/cm2, and the average physiological radiation is 63.2 kcal/cm2. 4.2 Temperature The average annual temperature is 12.5°C, with an average January temperature not lower than -4.4°C and an effective temperature sum of not less than 4,000°C. The average frost-free period is 203 days. 4.3 Precipitation Precipitation mainly relies on the water vapor brought by the summer monsoo