译：DB42/T 1643-2021 DB42/T 1643-2021 Procedures for High-yield Cultivation of Grapes Note: DB42/T 1643-2021 stands for the local standard of Guangdong Province (DB stands for the standard of the province, and 42 represents Guangdong Province), T represents that it is a technical standard, and 1643 is the number of the standard. "Grapes" is the content of the standard, indicating that it is a technical specification for high-yield cultivation of grapes