T/YNRZ 004-2023 Pitaya cultivation technical regulations
T/YNRZ 004-2023 Pitaya cultivation technical regulations
Basic Information
Scope
Scope: This document specifies the requirements for the selection of planting sites, pre-planting preparation, planting, orchard management, pest and disease control, harvesting, storage, and transportation for papaya cultivation. This document is applicable to papaya cultivation; Main technical content: 1. Terms and definitions: There are no terms or definitions requiring definition in this document. 2. Site selection: Select a location with convenient transportation, close to water sources, free from pollution, and with an altitude of 300 m to 3,000 m. The soil should be deep, loose, and fertile, preferably sandy loam or loam soil. The irrigation water should comply with GB 5084. 2.1 Papaya can be planted at altitudes below 1,500 m, with the most suitable altitude being below 800 m. 2.2 The optimum annual average temperature is 19°C to 22°C. 2.3 Soil selection: Loose soil with a deep layer, good aeration, and smooth drainage, with a pH of 6.0 to 6.5. 2.4 The planting environment should be convenient for transportation, with sufficient water sources, and sheltered from the wind. 3. Pre-planting preparation: 3.1 Variety selection: Choose varieties with strong fruiting performance and good resistance to adverse conditions. 3.2 Land preparation: After clearing large rocks, weeds, and debris in the planting site and digging the ridge surface, apply sufficient composted organic fertilizer, generally 5 to 10 kg/plant, and mix the fertilizer thoroughly with the soil. Shape the ridge surface into a turtleback shape, and irrigate thoroughly after planting. Dig drainage and irrigation ditches to keep the groundwater level below 80 cm. 3.3 Planting density: Row spacing 2.3 m to 2.5 m, and plant spacing 1.5 m, with 178 to 193 plants/667 m2. 3.4 Seedling selection: Choose seedlings with a height of about 15 cm, a stem diameter of more than 0.4 cm, 5 to 7 true leaves, normal root systems, and no pests or diseases. 4. Planting: 4.1 Planting time: Planting can be carried out f