T/TFHT Z015-2019 Huangqi planting technology specifications

Scope

Main Technical Content: 3.4 Seeds and Seedlings - Appearance of Mongolian Astragalus seeds: Irregularly oval, kidney-shaped, or pear-shaped, with flat sides. The color ranges from brown to black. The seeds are smooth, leathery, and hard. The seed coat features wrinkled patterns, with only a net-like pattern around the seed hull and few fine lines. The seeds are fully mature (with a viability rate of over 97%), which is beneficial for reproduction and safe storage. - No mixed seeds from other plants. - No seeds from membrane-coated Astragalus (which resembles Mongolian Astragalus but differs in its net-like seed coat pattern with regular meshes and multiple fine lines). - Technical Specifications: - Water content: Less than 8%. - 1,000-seed weight: 6.2–8.0 grams. - Treatment method: Friction method. - Germination rate in trials: Greater than 95%. - Seedling requirements: No mixed seeds from other plants or membrane-coated Astragalus seeds (ensuring seedling purity is key). 4. Preparation 4.1 Seedling Site Selection - Altitude: Above 800 meters. - Soil type: Preferably sandy loam with good permeability. - Surrounding vegetation: Native wild grasses (indicating no pesticide residues). - Crop types in the previous three years: Non-leguminous. - Farming methods in the previous three years: No tillage history (virgin land) or organic farming. - Seedling preparation: - Sieving: Use a multi-layer round sieve with a certain pore size to screen the seeds based on preliminary sample size. (The average size of seeds from different years may vary slightly.) - Complete Astragalus seeds should account for over 95% of the tested samples. - Tillage and fertilization timing: After Qingming Festival and from April 5 to April 20 each year. - Technical Notes: - Tillage depth: 35 cm. - Fertilizer selection: Fermented sheep manure from Mongolian Astragalus-growing areas + native wild grass stems + organic fertilizer.

Development Information

Related Standards