T/SCSKJQYLHH 16-2022 Technical Specifications for Intercropping Soybeans in Sichuan Buddha's Hand Garden Land

Scope

Main technical content: 4 Sets of Seedling Site Selection for Young Sichuan Buddha Hand Trees: The tree row spacing should be more than 2.5m, with good light transmittance and air quality meeting GB 3095 standards. The irrigation water quality should comply with GB 5084 regulations, and the soil quality should meet GB 15618 requirements. 5 Soybean Variety Selection: Choose high-yield, shade-tolerant, resistant to lodging, drought-resistant, and disease-resistant varieties with broad adaptability. For spring-sown soybeans, options include Nanchun Dou 36, Cheng Dou 13, 14, 15, Nandou 22, 23, 24, and Sichuan Xian Dou 1, 2, 3; for summer-sown soybeans, options include Chuan Nong Xia Dou No. 3, Nan Xia Dou 25, 32, 45. The seed quality should meet GB 4404.2 standards, with 3kg/667m2 prepared. Seeds are pre-selected to remove diseased, insect-damaged, or shriveled seeds. 6 Sowing and Planting: - Sowing period: Late March to early May, after local temperatures stabilize above 12°C for 10 days. Preferably sowing before or after rain, or irrigating to maintain 50%–70% soil moisture if no rainfall. Some spring-sown soybean varieties can be replanted as summer crops, but no later than mid-to-late May. - Sowing methods: - Mechanical sowing: For rows wider than 1.5m, use small rotary tillers, ensuring safe distance from Sichuan Buddha Hand trees during operation. - Manual sowing: For rows narrower than 1.5m, use manual or no-till sowing. 7 Field Management: - Fertilization: Comply with NY/T 496 standards. - Thinning: Remove weak, diseased, or damaged seedlings after the seventh true leaf appears, leaving healthy, robust ones. - Weeding: Manually remove weeds during the 30–40 days after soybean emergence. - Pest control: Follow the principle of "prevention first, integrated control," prioritizing biological and mineral-based pesticides. Comply with GB/T

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