T/YLNK 30-2020 Active Group standards

T/YLNK 30-2020 "Yangling Agricultural Science" Seed Industry, Rapeseed, Shaanxi Oil 28, and the full mechanized cultivation technical specification

Publish Date: 2020-10-21 Implement Date: 2021-01-01 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/YLNK 30-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Agricultural and forestry machinery and equipment

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2020-10-21

Implement Date: 2021-01-01

Scope

Main technical content: This document specifies the terms and definitions, field requirements, variety selection, cultivation techniques, field management, harvesting, drying, and storage for the full mechanized production of the oilseed variety "Shanyou 28". This document is applicable to the full mechanized cultivation and management of the oilseed variety "Shanyou 28" under the "Yangling Agricultural Science" seed brand. **Segmented harvesting (indirect harvesting):** This method involves using a cutting-and-drying machine to cut down the rapeseed plants first. After drying them in the field for 3–5 days, the seeds are then threshed using a picking-and-stripping machine. **5. Variety selection:** Only the "Shanyou 28" variety that has passed national registration and meets relevant national standards should be selected. The seeds must comply with the GB4407.2 standard, which requires a purity of ≥85%, a net weight of ≥98%, a germination rate of ≥80%, and a moisture content of ≤9%. **6.1 Land preparation and trenching:** After harvesting the previous crop in the Huai-Huai region, use a rotary tiller to perform fine tilling, break up large soil blocks, and remove weeds. The tilling depth should be 12–15 cm, with consistent tilling depth and no over- or under-tilling. In the lower reaches of the Yangtze River, a combined sowing machine can be used to complete trenching, full-depth stubble removal, precision sowing, fertilization, and soil covering in a single operation. The trenching should include side trenching, waist trenching, and edge trenching, with a trench depth of 15–20 cm. The trenching should ensure that surface water can be drained and groundwater can be filtered, depending on the soil moisture conditions. Timely irrigation and drainage should be implemented according to the soil moisture conditions.