T/PDTCXH 001-2020 Active Group standards

T/PDTCXH 001-2020 Pruning and cultivation techniques for Forsythia plantations

Publish Date: 2020-10-27 Implement Date: 2020-11-27 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/PDTCXH 001-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Medicinal plants and products

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2020-10-27

Implement Date: 2020-11-27

Scope

Scope: This standard specifies the planting conditions, cultivation techniques, pest and disease control, and harvesting and processing of Forsythia suspensa. This standard applies to the cultivation and processing of Forsythia suspensa in Shanxi Province. Main technical content: 1. Site conditions: 1.1 Environmental conditions: Semi-shaded or sunny slopes with an altitude of 600m to 1200m, an average annual temperature of 10℃ to 18℃, and annual precipitation of 600mm to 1200mm. The minimum temperature should be above 0℃, with a heat summation of 4000℃ to 6000℃, a frost-free period of 150 days to 350 days, an average temperature of more than 25℃ in the hottest month, and an average temperature of -5℃ to 5℃ in the coldest month. The annual total solar radiation should be (110–140) kCal/cm2. 1.2 Soil conditions: The soil in the production area is mainly yellow-brown loam and yellow-brown clay, with a texture ranging from sandy to clayey, with clay predominating. The soil is slightly alkaline, neutral, or slightly acidic, with a pH value of 6.5 to 8. The soil fertility is moderate. 2. Seed (seedling) requirements: 2.1 Seeds should weigh 4.8 g per 1,000 seeds, have a purity of more than 85%, a germination rate of more than 85%, and a purity of 99% (referring to the purity of seeds from plants of the same flower type). 2.2 Seedlings are divided into three grades: a) Grade 1 seedlings: with a plant height of 80 cm and a stem diameter of more than 1 cm; b) Grade 2 seedlings: with a plant height of 50 cm to 80 cm and a stem diameter of 0.8 cm to 1 cm; c) Grade 3 seedlings: with a plant height of less than 50 cm and a stem diameter of less than 0.8 cm. 3. Site selection and preparation: 3.1 Site selection: The slope should be 0–20°, with a soil layer thickness of more than 40 cm. The soil should be deep, loose, fertile, and well-drained. For cuttings, it is best to use sandy soil (with good permeability and easy rooting). 3.2 Site preparation: