1, variety selection: Water spinach is actually imported from abroad, so we should choose varieties suitable for China's climate and various growth conditions for planting.

2. Sowing date: If Ipomoea aquatica is planted in greenhouse, it will be cultivated mainly in autumn and winter.

3. Soil preparation and fertilization: Water spinach grows quickly, so it needs a lot of fertilizer. In order to get on the market faster, apply sufficient base fertilizer in the soil before planting.

4. Sowing method: Water spinach can be planted in the field or drilled. When sowing, be careful not to exceed two kilograms of seeds per mu.

1. Cultivation techniques of Ipomoea aquatica in greenhouse in early spring

1, variety selection

(1) Water spinach is imported from abroad, so we must choose varieties suitable for China's climate and various growth conditions.

(2) Generally, you can choose Dahuichuang, Daguqing or Flag Leaf for planting in plastic greenhouse. These three varieties are easy to produce high yield.

2. Sowing time

Generally, water spinach cultivation in greenhouse is mainly carried out in autumn and winter. If you want to get better returns, you need to arrange it after greenhouse 10, so you can go public in 12.

3. Soil preparation and fertilization

(1) Water spinach grows very fast, so it needs a lot of fertilizer. If you want to go on the market faster, you must apply enough base fertilizer in the soil before planting.

(2) And when fertilizing, we must use all kinds of decomposed organic fertilizers and mix them with plant ash. At the same time, we must thoroughly cultivate the soil and collect the planted land into beds.

4. Seed germination

(1) In Ipomoea aquatica cultivation, the seeds are not sown in the ground, but soaked in water first.

(2) Because the seed coat of Ipomoea aquatica is very thick and hard, if it is directly planted in the ground, the germination will be very slow. If the water content is not well controlled, the seeds will rot easily, so the germination must be accelerated first.

(3) Note that the seeds can be wrapped with moist gauze in about 20 hours, and then put into the germination box for germination. When the seeds are exposed, you can sow.

5. Sowing method

(1) Ipomoea aquatica can be spread or drilled in the field, and the sowing time should not exceed two kilograms per mu.

(2) After sowing, cover the seeds with a thin layer of soil, which can better promote seedlings.

(3) When sowing, the furrow can be about 3cm, and the furrow spacing is about 16cm. Spraying some water on the soil after sowing can effectively improve the survival rate of water spinach seedlings.

Second, hollow rape can germinate in a few days.

1, water spinach can germinate in 5-7 days. Before sowing, be sure to soak the water spinach seeds in warm water for 24 hours, which will help the epidermis absorb water. Then disinfect the soil, add a proper amount of decomposed organic fertilizer for deep tillage, cover the soil with sand and plastic film after sowing, and water it to keep it moist.

2. Water spinach has good heat resistance, so it likes humid and warm climate. Water spinach has shallow root distribution but strong vitality, so the requirements for planting soil are not very strict. However, the amount of fertilizer needed in the growth process is large, mainly nitrogen fertilizer. Generally, sunny environment will be more suitable for the growth of water spinach.

3. Water spinach grows very fast, has strong branching ability, and needs more fertilizer and water, so it is necessary to give sufficient base fertilizer. Fertilize the border a few days in advance when planting, and then spray a new layer of high-fat film on the soil surface, which can prevent water evaporation, prevent sun and drought, keep warm and freeze, prevent soil hardening, isolate the source of pests and diseases, and improve the emergence rate.