when planting, seeds should be selected according to the region where they are located. Different varieties have different dormancy habits, and they should be selected according to the time to market and the way of grafting. Select some with good quality, strong disease resistance and easy high yield.

second, the sowing method

when sowing, the seeds must be evenly spread, and then covered with soil, about one centimeter thick, and compacted after covering. Before the seedlings are unearthed, they should be kept moist. At the seedling stage, management should be strengthened and weeding should be done frequently. When the long seedlings grow to a height of 18 to 2 cm, they can be transplanted. Third, land preparation for border cultivation

It is a perennial vegetable, and it does not need to be plowed for many years after cultivation. Therefore, it is necessary to prepare the soil before planting. It is necessary to deeply plow the plot first to ensure that the roots of the seedlings can develop better. Fertilization is also needed, with 5 tons of farm manure, 4 kilograms of diammonium phosphate and 1 kilograms of potassium sulfate per mu, and rotary tillage twice to ensure better mixing of fertilizer and soil.

Fourth, planting methods

Planting should avoid the high temperature and humidity season, planting in spring after the summer solstice, and planting in autumn after Tomb-Sweeping Day. Ditch planting can be used. The row spacing should be 3-35cm, and the ditch should be 1-15cm deep. After digging holes, plant 2-4 plants in each hole. V. strengthening management

management must be done well after planting. In the later stage, it is necessary to water and topdressing frequently to ensure sufficient water and nutrients, so as to promote the better growth of seedlings. Especially before and after beginning of autumn, this period is the vigorous growth period of young seedlings, which should be watered every other week and topdressing with quick-acting nitrogen fertilizer.