T/YNRZ 008-2023 Active

Scope: This document specifies the requirements for sowing, seedling cultivation, transplanting, field management, and pest control of honey melons intercropped with young mango orchards. This document is applicable to young mango orchards intercropped with honey melons. Main technical content: 1. Terms and definitions: There are no terms or definitions requiring definition in this document. 2. Sowing and seedling cultivation 2.1 Seed selection: The seed quality requirements are purity greater than or equal to 95%, net weight greater than or equal to 99%, germination rate greater than or equal to 90%, and moisture content less than or equal to 8%. 2.1.2 Seed quantity: Use 50-60 g of seeds per 667 m2. 2.1.3 Seed treatment: Soak the seeds in 53 °C warm water for 15 minutes before sowing, then soak them again for 4-7 hours after cooling naturally. Wash and drain them, and finally wrap them in a damp cloth and germinate them at a constant temperature of 29-30 °C until more than half of the seeds show white roots. Then sow them. 2.1.4 Sowing time: Above 1200 m above sea level, the sowing time should be in the middle of May; below 1200 m above sea level, the sowing time should be in late August. 2.2 Seedling cultivation: Use nutrient bags or seedling trays for seedling cultivation. The sowing depth is 1 cm to 1.5 cm, with the seeds placed flat. When the seedlings reach two leaves and one heart, transplant them. 3. Transplanting 3.1 Transplanting time: Transplant before 10 a.m. or after 5 p.m., and transplant on cloudy days. Avoid planting on rainy days. After transplanting, cover the seedlings with straw. 3.2 Planting density: 200-300 seedlings per 667 m2. 3.3 Transplanting method: Spray 70% Metasulfuron Methyl WP 750 times dilution to protect the seedlings 2 days before transplanting. Plant two seedlings per hole, remove the seedlings from the nutrient bags, straighten them, backfill the soil, and compact it. The planting depth should be 2 cm to 3 cm above the ground le