The budding stage is from the beginning of planting to the end of the first floating leaf. During this period, the water depth is controlled at about 1-2cm. At the same time, it is necessary to keep warm properly to avoid the seedlings from freezing due to low temperature.
The seedling stage starts from the first floating leaf to the end of leaf growth. At this time, the water depth is controlled at about 3-5cm. Sun more every day, improve the temperature of water, help the growth of buds. There are 5 - 6 leaves, you can apply some compound fertilizer, fertilizer do not touch the leaves.
From the beginning of leaf growth to the end of flower bud. At this time, the temperature is high and the water evaporates quickly. It needs to add water in time to ensure that the basin is full. At the same time, more fertilizer should be applied, and compound fertilizer should be applied every 20 days. At the same time, the yellow leaves should be removed. The petioles of the leaves should be higher than the water surface.
From budding to ripening. At this time, the temperature is still very high, and the consumption of water and nutrients is very large. Fertilizer is the same as leaf setting period, and water should be added frequently. After the fruit matures gradually, the leaves turn yellow, and the fertilizer should be reduced or stopped.
The above ground part of the fruit turns yellow and withers after ripening. At this time, keep the pot soil moist, you can cut off the dead leaves, and cover with plastic film for heat preservation.
The dormancy period is after the withering yellow period and before the second year germination. At this time is mainly to do a good job in cold prevention measures, so that the plant can safely survive the winter.