Nowadays, lotus root planting industry has become a hot industry, so what is the deep water lotus root planting technology? Below is the deep water lotus root planting technology that I have carefully compiled for you. Let’s take a look.

Deep-water lotus root planting technology

The first is the choice of lotus root species. Choosing a high-quality lotus root seed is the main factor for high yield. The most selected is the deep-water late lotus root species; the second is the selection of planting methods. When choosing a lotus root pond, the depth of the lotus root pond should not be more than 1.5 meters. The land should be relatively fertile, and the water flow during irrigation should not be too large. There is also the method of fertilization, because the depth of the water in the lotus root pond is relatively deep. Therefore, you should choose to fertilize the year before planting, when the water is shallow. Generally, organic fertilizer is applied. The more you apply, the better; choose the planting time, usually before and after the break of frost. If the planting is too The lotus root seeds will rot early and are not suitable for germination. However, if they are planted too late, the lotus root seeds will be damaged and the survival rate of the lotus roots will not be very high.

Before planting, you should pay attention to choosing strong and neat lotus roots as lotus root seeds. When choosing lotus root seeds, it is best to choose lotus roots with two or more nodes. You should distinguish between big and small. When planting, they should also be distinguished.

Lotus root planting technology

1. Site selection: The lotus root pond should be located in a village wasteland, abandoned house, abandoned pond, saline-alkali land, waterlogged depression, etc. with sufficient sunshine and no shade from trees. .

2. Material preparation: Each mu of lotus root pond requires 5 tons of lime, 5 tons of cement, 30 tons of sand, more than 800 square meters of 8-wire film, and 230 prefabricated blocks of 50 cm to 70 cm and 5 cm thick. Around 4,000 to 5,000 yuan per mu in total construction cost.

3. Build a pool.

① Dig the pool: Use an excavator or manually. The depth of the pool is 60 cm and the slope of the pool wall is 60 degrees.

② Hammer bottom smashing: Spread lime into the bottom of the pool, use a rotary plow to rotate it 2 to 3 times to a depth of 20 cm. After the soil and ash are evenly mixed, use a machine to level and compact the bottom of the pool. Use 3:7 lime soil to compact and compact the pool wall.

③Membrane laying: After hammering the bottom, use film to smooth the bottom and walls of the pool.

④ Paving the base: After laying the film, smooth it with 2 to 3 cm thick concrete.

③Erecting the inclined plate: Stand the prepared inclined plate on the wall of the pool, and plaster the seams with cement. In this way, the lotus root pool is ready.

Land preparation and fertilization

1. Spread straw: Before planting lotus roots, spread wheat straw, corn straw or weeds into the pond with a thickness of 30 to 40 cm. 1.25 to 1.5 per acre is required. Ten thousand kilograms, about 25 acres of crop straw.

2. Fertilization: Before rowing the lotus roots, mix 5,000 kilograms of soil fertilizer, 75 kilograms of diammonium phosphate, 50 kilograms of potassium sulfate, and 20 kilograms of urea with the covering soil and evenly cover the straw. , about 12 cm thick.

Selecting lotus roots for planting

Selecting lotus roots: For shallow-water lotus roots, early-maturing varieties with smaller lotus roots and leaves should be selected, such as Jinan White Lotus Roots, Elian No. 4 and No. 5 varieties. Seed lotus roots are generally dug out before planting, and whole lotus roots that conform to the characteristics of this variety and have sub-lotus roots are selected as lotus root seeds. The sub-lotus roots must grow in the same direction to make the lotus whip elongate regularly. When digging lotus roots, be careful not to damage the terminal buds. The lotus roots are usually cut half an inch behind the second section. Do not break them with your hands to prevent muddy water from pouring into the lotus holes and causing seed rot. After digging the lotus roots, spray 400 to 500 times of 50% carbendazim solution on the lotus roots and leave them to sit for a day before use to prevent the occurrence of rotten diseases.

Key points for planting lotus root

1. Choose high-yielding varieties that are shallow in the mud, have thick leaf stems, are wind-resistant, have high commercial rates, and are of good quality, medium-early maturing and high-yielding varieties, such as white lotus root, Elian No. 4, Elian No. 5, etc.

2. Land preparation and fertilization. Lotus roots should avoid repeated cropping. For cultivation, clay loam fields should be selected with deep, fertile soil, rich in organic matter, strong water retention capacity, convenient drainage and irrigation, and good lighting. When preparing the land, apply sufficient base fertilizer. Generally, apply 5,000-6,000 kilograms of decomposed organic fertilizer per mu, and plow thoroughly to achieve a state of muddy, flat fields, high ridges, and sufficient fertilizer. At the same time, spread 50-80 kg of quicklime to disinfect the soil.

3. Planting: Plant early when the temperature is stable above 12℃ and the soil temperature is above 8℃. Generally, it is appropriate to plant from late March to early April. Choose fresh mother lotus roots or child lotus roots with more than two fully mature nodes as seed lotus roots. The lotus roots should be large, with vigorous buds, no damage, and no pests or diseases. Plant in a plum blossom shape with a row spacing of 1.5-1.8 meters and a plant-to-plant spacing of 1.0-1.2 meters. The density can also be adjusted appropriately according to the size of the lotus roots and the number of buds. Generally, about 400 nests are planted per acre, and 250-300 kilograms of seeds are used. When planting, classify the lotus roots according to their size, with one lotus in each hole. The lotus root heads should be inserted deeply into the mud (10-12 cm into the mud), and the lotus root handles should be shallowly inserted into the mud (5 cm into the mud). The lotus root buds should be planted in rows around the field with their heads facing into the field. To prevent lotus roots from growing outside the field ridges.

4. Lotus root field management

(1) Irrigated lotus roots have different water needs at different growth stages, that is, shallow water promotes germination, deep water protects lotus leaves, and shallow water promotes knotting of lotus roots, so planting Within 30 days, a shallow water layer of 2-3 cm deep should be maintained to increase soil temperature and promote bud growth; after entering the vigorous growth period, gradually deepen the water level to 15-20 cm; during the lotus root period from July to September, maintain 7-8 Centimeter-deep shallow water layer promotes lotus root formation. During the entire growth period, it is necessary to prevent the water level from rising sharply and submerging the standing leaves, and strictly prevent polluted water from flowing into the fields, resulting in reduced yields and no harvests.

(2) Top dressing is generally done twice. The first time when 3-5 whole leaves appear, apply 1500-2000 kg of decomposed manure per mu to promote vigorous plant growth; the second time when 3-5 whole leaves appear. 7-10 days before the last leaves appear, apply 15-20 kilograms of Jiamei profit per mu. You can also add 100 kilograms of decomposed cake fertilizer or 150 kilograms of plant ash.

(3) Disease prevention: According to the plant protection policy that focuses on prevention, rational crop rotation is used to control the occurrence of diseases. When root rot is discovered, the diseased plants should be pulled out in time, and in the early stage of the disease, 100 billion live spores/g Bacillus subtilis wettable powder 800 times the liquid should be used to irrigate the roots and spray the leaves and petioles at the same time. For the prevention and treatment of brown spot, difenoconazole spray can be used in the early stages of the disease.

(4) Insect prevention: Aphids are a common insect pest of lotus roots. They can be controlled by spraying 1 acre of matrine soluble liquid 30-50 grams into 30-45 kilograms of water.

(5) Weeding is done manually. Generally, before sealing the field with lotus root leaves, the weeds are pulled out and stuffed into the mud with top dressing, and floating leaves, yellow leaves and dead leaves are removed at the same time.