Thin land and Gao Shuang land should be selected for seed retention of Ipomoea aquatica. Because the soil is fertile and the stems and leaves grow vigorously, the flowering period will be delayed. Once the early frost comes, the stems and leaves will die and the seeds will not mature. Seeding seedlings are slightly later than field planting, generally from late May to early June, with row spacing 1m and plant spacing of 0.6m, with 2 seedlings per hole. After the seedlings are planted, there is no need for topdressing and watering, but the shed should be built early. It is best to build a "human" shed behind the living tree, lead the main stem into the shed, and then lead the side branches into the shed one after another.

Pay attention to the harm of red spider and prevent it in time.

Generally, it can bloom in late August, and the seeds begin to mature in late June, 65438+ 10. Mature seeds with black shells and hard texture can be harvested. Harvest a batch of mature seeds and improve seed quality. Generally, it is collected at the beginning and middle of the month of 1 1 and completed before first frost. Seeds should be dried immediately after harvest and then stored.