T/YNRZ 013-2022 Active Group standards

T/YNRZ 013-2022 Quality Cultivation Techniques for Princess Smile Lychee

T/YNRZ 013-2022

Publish Date: 2022-08-18 Implement Date: 2022-09-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/YNRZ 013-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Plant cultivation

Publish Date: 2022-08-18

Implement Date: 2022-09-01

Scope

Scope: This standard specifies the terms and definitions for high-quality cultivation of Princess Smile lychees, including variety improvement, autumn shoot cultivation, single flower spike cultivation, flower and fruit preservation, light and efficient green pest control, timely harvest, post-harvest processing and storage, and processing techniques. This standard applies to adult lychee orchards in the Princess Smile lychee production areas of Yunnan Province. Main technical content: 1. Terms and definitions The following terms and definitions apply to this document: 1.1 Bark grafting A grafting method where the bark of the rootstock is selected at a smooth location, and two vertical cuts (slightly wider than the cut surface of the scion) are made at the cut site, forming a "V" shape that reaches the xylem. The bark is peeled open, and the prepared scion is inserted into the gap between the bark and xylem. 1.2 Autumn shoots Branches that sprout and grow in the autumn. 1.3 Crown flower spikes Single flower spikes that emerge from the unharmed terminal buds of the last autumn shoots. 2. Variety improvement 2.2 Selection of rootstock varieties Any varieties with limited market potential can be improved for the Princess Smile lychee variety, and grafting compatibility is good. See Appendix A. 2.2 Tree management 2.2.1 Rootstock management Fertilize 2 months before grafting, applying 2 kg to 3 kg of compound fertilizer (N:P:K=15:15:15) per tree. Fertilizer must comply with NY/T 394. Water each tree with 50 kg to 100 kg of water 20 to 30 days before grafting, ensuring the water meets GB 5084 standards. 2.2.2 Scion management a) Top prune 15 to 20 days before grafting. Spray the orchard crown and inner trunk with a 2.5% high-efficiency chlorpyrifos emulsifiable concentrate at 1200 to 1500 times dilution or a 10% imidacloprid suspension emulsion at 1200 to 1500 times dilution combined with 0.1% to 0.2% potassium dihydrogen phosphate + 0