Water celery is so good, do you know how to grow it?

The planting method of Oenanthe javanica comprises the following steps:

The first step is the selection of crop stubble area.

Generally, stubble fields such as shallow water lotus field, spring corn field and early-maturing soybean field with fertile soil, good fertilizer and water conservation performance and convenient drainage and irrigation are selected.

Step 2: Fertilization preparation and sowing.

7. Before sowing 10 day, apply 2,000 and 2,500 kilograms of high-quality organic fertilizer or more than 100 and 150 kilograms of cake fertilizer per mu, and then carry out deep ploughing and water retting. The more ploughing times, the deeper ploughing and the longer retting time, the easier it is to obtain high yield. In the final tillage and soil preparation, 50-75 kg or more ternary compound fertilizer is applied per mu to achieve a flat field surface. Built around high ridges (height above 50 cm), irrigated by thin water layer.

Step 3, select seeds to germinate.

In the middle and late August, celery stems must be tied with straw. Each bundle should be 2-3 rows, 20-30 cm thick. After binding, spread a layer of stems horizontally and a layer vertically, cross-pile them in the shadow of the sun or on the roof of the north wall, and cover them with straw or other aquatic plants. When there are no natural conditions, you can use a sunshade net. Water once before 9 am and after 4 pm to keep moisture and prevent fever. Under cool, ventilated and humid conditions, buds of 1-2 cm are grown under each node for about 7 days. Take root and sprout at the same time. In this way, the sprouted and rooted stems can be sown, and the growth degree can be cut off by 30-40 cm by shaking. Seed metering can generally be cut into about 60 cm.

Step 4: metering and sowing in shallow water.

The suitable sowing date of Oenanthe javanica is early September, which is not conducive to high yield. To achieve high yield, row is the foundation, and stems can be arranged after bud. The arrangement method is that the stem end of the bud is facing the ridge, the tip is facing the field, and the bud head is upward. Pay attention to the following points when planting: First, in order to ensure the density, the planting spacing is generally 6-8 cm; Generally, the planting amount per mu is 200-250kg. Second, the field should be flat, so as to promote the growth of buds and roots and achieve consistent growth. The most important thing at this stage is to avoid uneven field surface, high drought, unfavorable root system and long buds; The sun is hot when the water is shallow, and the buds are hot when the water is shallow. To grow into seedlings, the water layer gradually deepens.

Step 5: According to pest control

When the seedlings grow to 2-3 leaves, topdressing should be started to promote the plants to grow sturdily as soon as possible. Topdressing once every 7- 10 days, with urea 10- 15 kg per mu. If aphids are found, they can be controlled by spraying nets or deep water (about 4 hours).

Step 6: Water resources management

After the celery takes root and grows completely, you can drain the water in the field and put it once. After that, the water layer gradually deepened, and the initial water layer was 5- 10 cm. In the later stage, the water layer is about 30 cm, and the plant surface is about 15 cm. After winter, Oenanthe javanica stopped growing, mainly by watering to keep warm and prevent freezing.

Step 7: Bury the seedlings deeply

When the seedlings grow to about 25 cm, combine weeding and fertilizer mixing to prepare soil in the field. Firstly, the density is moved and filled to make the field evenly distributed; The second is to hold high and fight low, so that the field population grows neatly and tall. At the same time, the buried cress can be used to soften and improve the quality of cress.

The above is the planting method of Oenanthe javanica, I hope it will help you.