T/GTWQHL T/GTWQHL001-2022 Late autumn Huangli pear planting technical regulations in Guantiao County

Scope

Main Technical Content: 4. Planting Techniques The cultivation techniques not specified in this clause shall still follow conventional farming and agronomic practices. 4.1. Establishing Orchards 4.1.1. Site Selection Although late autumn yellow pears are not particularly demanding on soil quality, to maximize economic benefits such as yield and quality, it is recommended to select sandy loam soils with deep layers and land with convenient irrigation and drainage. Avoid establishing orchards on land with consecutive planting. The environmental conditions of the production area must comply with the requirements of NY5013-2006. 4.1.2. Site Preparation It is recommended to select sandy loam soils with a soil depth of ≥60 cm, good aeration, and an organic matter content of ≥1%. The environmental conditions of the production area should comply with the relevant requirements of NY/T 391. 4.1.3. Seedling Selection Select Du Li and Qiuzi pears as rootstocks. The quality of seedlings should comply with the requirements of NY 475. 4.1.4. Planting Planting can be carried out from after leaf fall in autumn to before the bud break of pear trees in the following spring. The general planting density is 1.5m × 2.5m per plant, with 170 plants per mu. The planting pit size is 80cm × 80cm × 80cm. Before planting, the roots of the seedlings are disinfected in a 2% root dipping solution for 2 minutes to promote rooting. When planting, the roots should be spread out, the seedlings should be upright, and the grafting site should face the wind. While filling the soil, the seedlings should be gently lifted and compacted to ensure that the roots are fully in contact with the soil. The planting depth should be level with the root neck. After planting, irrigate immediately. 5. Water and Fertilizer Management 5.1 Soil Cultivation Deep plowing: Combine autumn fertilization with deep plowing and soil improvement in the autumn. Dig annular or parallel ditches 50cm wide a

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