T/ZHDZ 004-2019 Active Group standards

T/ZHDZ 004-2019 Winter jujube pest and disease prevention and control technical specifications in Zhanhua, Shandong province, China

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 004-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Plant quarantine, pest and disease control

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2019-10-17

Implement Date: 2019-11-16

Scope

Main Technical Content: 3.1 Selecting robust seedlings and determining reasonable planting density. When establishing an orchard, it is necessary to select high-quality seedlings with strong growth, well-developed root systems, and no disease or pest infestation. The plot should have fresh air, pure water, and unpolluted soil. The terrain should be flat, open, and well-lit, with fertile soil, good irrigation and drainage conditions, and no natural harmful or toxic substances. The soil minerals should be within normal ranges, with no pesticide residues or pollution. Proper planting is essential. The planting depth should be such that the root neck is level with the ground. Avoid planting too deeply, which can affect tree growth. Determine a reasonable planting density to avoid crown closure, high relative humidity in the orchard, insufficient sunlight, excessive branch growth, and weak resistance to diseases and pests. Overly sparse planting is also inefficient in terms of light and soil utilization. Generally, a planting spacing of 3m × 4m is more reasonable in production. 3.2 Apply organic fertilizer to improve tree nutritional levels and enhance disease and pest resistance. Applying organic fertilizer can effectively increase soil organic matter content, improve soil aeration and structure, and promote root growth of winter dates, strengthening tree vigor and resistance to diseases and pests. The application time of organic fertilizer is generally in autumn (September- November) or early spring (March-April), with early autumn application being optimal. The application quantity: for young trees, 20-50kg of organic fertilizer per tree; for mature trees (fruit-bearing trees), the amount can be determined based on the yield-fertilizer ratio—generally, 1kg of winter dates requires 1kg of organic fertilizer or 5 cubic meters of composted farmyard manure. For young trees, apply fertilizer in a circular trench; for mature trees, use a radial trench. 3.3 Tie straw