T/CAICC 01-2020 Environmental-Friendly Four-Good Work Method - Apple

Scope

Main Technical Content: 1. Soil Improvement Methods: Based on the results of soil background surveys, develop targeted plans to cultivate healthy soil. The basic steps are the two-step rapid soil improvement method (Level 2): - **Step 1**: Activate soil microorganisms, balance soil microecology, improve soil structure, and increase organic matter content in the first year; apply organic-based soil conditioners and minerals, as well as multifunctional microbial inoculants to activate and regulate soil. - **Step 2**: Increase soil microbial population and diversity, improve nutrient utilization efficiency, and enhance soil self-recycling and supply capacity in the second year; continue applying organic-based soil conditioners and minerals, as well as multifunctional microbial inoculants. Soil conditioners are used in combination with soil tillage, and are applied after fruit harvest in autumn or after thawing of frozen soil in spring. 2. Seedling Planting Methods: - Dig planting holes 30 cm deep and wide within the planting grooves/pits, place seedlings in the center of the holes, spread out the roots, upright the seedlings, and arrange them in rows. Fill the holes with soil while lifting the seedlings and compact the soil. Immediately irrigate and cover with plastic film to retain moisture. - For spring-planted seedlings, prune the cuttings immediately after planting; for autumn-planted seedlings, prune before bud sprouting the following spring. After pruning, apply protective agents to the cuttings and take measures such as plastic film bags for protection. 3. Water Management: - Apply basal fertilizer before bud sprouting, during fruit expansion, and after frost prevention. During the growing season, irrigate based on soil moisture conditions. When soil moisture falls below 50%, irrigate promptly to maintain 60%–80% field moisture. - For flood prevention: Drain water when soil moisture reaches saturation. Terraced fields should

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