Scientific planting method of water chestnut

Water chestnut is a kind of living water plant, some areas call it horseshoe, because the shape is particularly like horseshoe named. The nutritional value of water chestnut is also relatively high, often eat can promote growth and development, lower blood pressure, beauty and other effects. So how exactly do you plant water chestnuts scientifically?

Water chestnut scientific cultivation method

1, seed selection

Reproduction Asexual reproduction using bulbs, also known as fruit balls. Water chestnut is propagated through stolons; before sowing, bulbs with no damaged epidermis, robust terminal buds and sound lateral buds, dark brown skin, single bulb weight of more than 15g and characteristics of cultivated varieties are selected one by one as seed chestnuts; before sowing, 50% carbendazim wettable powder is soaked in 500 times solution for 18-24 hours to kill surface germs; and about 15- 20kg of seed chestnuts are needed for each mu of field.

2, seedling time

The seedling time of water chestnut depends on the transplanting period. Early water chestnut starts to seedling 40-45 days before transplanting (late March to early April) due to low temperature in early stage, and late water chestnut starts seedling 20-25 days before transplanting due to high temperature during seedling. In the middle and lower reaches of the Yangtze River, seedlings are generally raised during the period from Qingming to grain rain. Indoor germination is carried out before seedling raising, and then seed sowing and false planting are carried out in paddy fields.

3. Seed germination

The indoor germination method is to spread a layer of rice straw about 10 cm on the ground, arrange the seed buds on the rice straw upward, stack 3-4 layers, cover the rice straw again, sprinkle water once every morning and evening, after 10-15 days, when the buds grow to 3-4 cm, you can transplant the seedlings to the seedling field for seeding.

3. Preparation of seedling field

Nurturing seedling field should be selected in a place with convenient irrigation and fertility, deep ploughing, fine harrowing and leveling of seedling field, with furrow left around and ridge built, because the nutrition for water chestnut growth mainly comes from water chestnut bulb at this period, and seedling field generally does not need fertilization.

4. Seed sowing and seedling raising

Put the buds into the seedling pool one by one, press the bulbs into the mud for 1-2 cm, the plant spacing is 6×6 cm, the bud head is required to be upward, the height is consistent, and the water layer in the field is maintained for 1-2 cm. 15-20 Days later, seedlings about 10 cm high, and there are 5-6 leafy stems can be planted.

planting technique

1. Soil preparation and fertilization: It is best to choose paddy fields with sufficient sunshine, loose topsoil, relatively solid subsoil, about 20 cm of cultivated layer, sufficient water source, convenient irrigation and clean water. Before planting, the field should be deeply ploughed for about 15 cm, and then applied with base fertilizer. The reference standard of fertilization is to apply decomposed pig manure 3000 kg, calcium superphosphate 30 kg, potassium chloride 10~15 kg, ammonium bicarbonate 15 kg per mu, and finally rake it to make the field soil become mud paste.

2. Timely planting: The planting time of water chestnut in the middle and lower reaches of the Yangtze River can be arranged from late May to early June. Before planting, carefully dig out the seedlings and wash away the soil. The best planting spacing of water chestnut is about 30×50 cm, planting 1 plant per hole, planting 2500~3000 plants per mu. Water chestnut planting depth should be appropriate, to 5~7 cm deep into the soil is appropriate.

Field management of chufa

1, seedling stage: from the live tree to the tiller, before the plant this period is called seedling stage. Water chestnut is an aquatic crop, seedling stage should maintain shallow water layer 3~5 cm. After planting, the water chestnut starts to sprout 10~15 days later. When the old leaves of the water chestnut seedlings die, the yellow stems and rotten seed seedlings and dead leaves of weeds are put into the field in combination with pulling grass, which is beneficial to the growth of new roots of the seed chestnut. At this time, urea can be applied once, generally 10~15 kg urea per mu, to promote early tillering and plant differentiation of water chestnut.

2. Nutrient period: Weeding 2~3 times in the tillering stage between water chestnut rows, combining weeding for the second time, topdressing urea 5~ 10kg per mu to promote water chestnut. From the autumnal equinox to the cold dew, the water layer should be deepened during the vigorous growth period of corms, so that the water layer should be maintained within the range of 6~9 cm. During this period, water chestnut stem blight and white rice borer often occur. For water chestnut stem blight, 50% carbendazim WP 500~1000 times solution and 70% thiophane methyl 800 times solution 40kg spray can be used for control. The control method of white rice borer is to spray 98% cartap 100g on 50kg water.

3, mature period: in the corm mature period, that is, about 20 days before harvest should stop irrigation, so that the leaves turn yellow, gradually dry, ready to harvest. There was no other management during this period, as long as livestock damage was prevented.

Growth Habits of Water Chestnut

Water chestnut is fond of being born in pond marsh or cultivated in paddy field. It likes temperature and humidity and is afraid of freezing. It is suitable for growing in soft tilled layer and solid loam soil.

In the cultivation requirements of 20-25 cm tillage layer, so that both conducive to the growth and development of bulbs, but also not deep drilling bulbs, uniform size of individual development, but also conducive to digging harvest. Tilly layer too sticky, not conducive to corm expansion, excessive humus, corm sugar content reduced, sweet poor. Suitable for growth in shallow water, in terms of nutrient requirements, less nitrogen and more phosphorus are required. Adequate light is required throughout the growth period.

Through the above content, I believe that everyone has a certain understanding of the planting technology of water chestnut. Water chestnuts generally grow in ponds or paddy fields, afraid of cold and warm, so tropical areas are more suitable for planting water chestnuts. Water chestnut high edible value, not only delicious nutrition, but also very good medicinal value oh!