1. Selection of land
Xiyangcai likes cold, heat-resistant, suitable for aquatic. Cultivation in the summer counter-season, low altitude places can also be planted, but be sure to choose a place where there is underground cool flowing water, and water temperature (field water temperature) up to no more than XT, or choose a cool, higher altitude (more than 500 meters), near the cool water source. Higher altitude places should be easily accessible for transportation. The soil for planting should be sandy loam with good permeability.
2. Transplantation time and field management
Summer counter-seasonal cultivation, generally in early May to start transplanting cuttings, to choose the old seedlings, thick seedlings transplantation. Planting land with organic fertilizer, with rotted farmyard manure evenly spread in the field, combined with the whole ground. To rectify the fine harrowing, the depth of water to slightly more than the surface of the mud is appropriate, every 3.3 meters or so to stay in the work rows, and in the field around the opening of a deep ditch, to facilitate drainage and irrigation water. The planting rows are 10-13 centimeters apart, and the plants are spaced about 7 centimeters apart. When planting, put the young stems on the field surface, so that its basal several nodes adhere to the soil, it can be rooted and grow. Normally, the field must be kept cool flowing water, the speed of water flow with the water temperature, high temperature, the flow rate should be fast, if the water temperature of the field is not high, can be used at a slower speed. In order to make watercress grow well, the water temperature should be controlled within the range of 18-22 ℃. If: the temperature is too high, the growth will be poor and the watercress leaves will turn yellow. Choose cloudy days or afternoons to apply fast-acting fertilizers, block the water inlet around, and do not release the water, or leave a small amount of flowing water, and sprinkle about 5 kg of compound fertilizer per acre. Wait for the watercress to absorb the fertilizer before releasing the flowing water. Xiyangcai planted in the summer is most afraid of white crash rain, such as conditions allow, you can use the sunshade net cover, cover the height of about 1 meter. For the prevention of heavy rain impact has a great role, but also can improve the quality and yield of watercress.
3. Harvesting
The harvesting of watercress should be selected in the evening or cloudy morning, avoiding sunlight. Harvesting standards should be based on domestic or export requirements. With bamboo baskets stacked in layers, leaving space in the middle to put ice crushed, and then put ice crushed on top. Strive for transportation in the evening and early sales. Conditional available refrigerated truck transportation, in addition to the use of ice crushed, refrigerated cabinet temperature. Should be adjusted in 0-5 ~ C. After each harvest, to fertilize, in order to promote its re-growth. Generally in the middle of June to start a large number of harvesting, to the end of late October. Mu yield 2500-3500 kg, harvesting time is long, high yield up to 5000 kg