1, planting time: the planting time of piper betel is usually in the spring and fall, of which spring planting in mid-late March to early April, fall planting in mid-late August to early September.

2, land selection and land preparation: choose deep soil, loose and fertile soil, well-drained plots for piper betel planting. Before planting the ground preparation, deep plowing and fine harrowing, and the application of rotted farmyard manure as a base fertilizer, in order to improve the fertility of the soil.

3, sowing: piper betel can be sown by direct seeding or seedling transplanting. Seedling transplanting is sown in the seedbed, and then transplanted to the field when the seedlings grow to a certain degree.

4, Psidium guajava is mainly distributed in China, North Korea, Japan, Vietnam, etc. It is a perennial climbing herb, and its fruit, pericarp, kernel, and rhizomes are all good Chinese herbs.