Lotus plants are well-planted

Preparatory preparation

Before the soil is selected for planting, the soil treatment should be done firstly. The pH value of the soil for planting shallow leeches should be controlled within 6~8. The optimum pH value is 6.5~7. It is best to use pond mud or paddy soil, or vegetable land. The garden soil, but absolutely can not use industrial pollution of soil. The thickness of the soil in the concrete pool is generally 30 to 40 cm.

Apply enough base fertilizer to prepare enough base fertilizer to apply. Shallow blisters are mainly based on organic fertilizers. There are many types of organic fertilizers such as crop straws, humic acid fertilizers, microbial fertilizers, farmyard fertilizers, and compound fertilizers. If you use farmyard manure and compound fertilizer, you can apply 4,000 to 5,000 kilograms of farmyard manure and 100 kilograms of compound fertilizer per acre. After the fertilizer is applied, plunge 20 cm to 30 cm deep, mix the soil and fertilizer, and then level the entire bottom of the pool.

When the lotus roots are planted and planted, they are planted along a straight line, with a spacing of 1 to 1.5 meters and a row spacing of 2 meters. The method is to dig a long planting pit in accordance with the size of the body with a hoe, and the planting pit has a 30 degree inclination angle with the bottom of the pool. The top of the species is inserted downwards, and the body is parallel to the planting pit. That is to say, there is also a 30 degree inclination angle between the body and the bottom. After the seedlings were inserted, they were buried in the excavated soil. After the flats were laid, the seedlings slightly leaked from the soil and the axillary buds leaked out of the soil, and all were buried in the soil. The depth of planting in soil is generally between 5 and 10 cm. Immediately after the planting, the water is poured into the cement pool. At this time, in order to raise the ground temperature, the seedlings will sprout early and the water level should not be too deep, generally keeping 5 centimeters.

Field management

Foliage period

Xiao He’s sharp horn has long been standing

As the temperature rises, the axillary buds of the seed pods begin to sprout. When the temperature stabilizes above 15 degrees Celsius, the axillary buds grow laterally and produce rhizomes, which is what we call the "whip whip". "It's fine, only 1 to 2 cm in diameter. There are knots on the whip, and the 藕 whip" is drawn on the festival. The role of the festival is not only to produce a “whiplash”. As we just said, the roots and leaves will be grown on the festival.

The blades have grown tall and drilled into the water. The leaves are folded into double cylinders against the petiole. We call these small leaves “vertical leaves”, and this period is called “vertical leaf stage”. The main management work in the "leaf stage" is to control the water level. Starting from the "leaf stage", the water level was gradually increased, but the water could not pass through the leaves. At the beginning, the water level was increased to 8 to 10 cm. When the leaves were gradually expanded, the water level was increased to 15 cm. In the early days of the leaves, the whip was growing longer and the leaves were growing. The pods needed to maintain a strong growth momentum and form a well-developed root system. This laid the foundation for the long-term larvae, so this period requires a lot of nutrition. In general, fertilizer is directly applied to the pool to top-dress fertilizer, and 1,000 kg of organic fertilizer, 15 to 20 kg of urea, and 5 to 10 kg of potassium sulfate fertilizer are used per mu. It should be noted that when spreading fertilizer, it must be uniform.

Fruit and fruit period

Next day lotus leaves Bi Yingri lotus different red

The lotus blossoms bloom one after another, the lotus leaves in the pond are once again connected, the lotus flower is blossoming, or the lotus blossoms are waiting to be put, or they are full of fragrance. At this stage, it entered the management of the flower and fruit period of lotus root. First of all, after the lotus root entered the flower and fruit period, the water level gradually deepened, until about 25 cm to 30 cm. After flowering, apply fertilizer again. This time dressing, although it is in the flower and fruit period, but it is prepared for the expansion of lotus root, and therefore, to add enough potassium, generally 15 to 20 kg of potassium sulfate applied per mu, 20 kg of urea, superphosphate 20 to 25 kilogram. After fertilizing, still use the water in the pond to flush the leaves and flowers with fertilizer to prevent fertilizer loss. At the late flowering stage of lotus root, the lotus flower gradually fades, and after flowering, the torus enlarges and forms a lotus blossom.

Leaf stage

Jiangnan picking lotus leaves He Tiantian

When the leaves of lotus root gradually develop, this period is called the leaf stage. The water level during the leaf development period is still about 15 cm. In order to meet the need for rapid growth of the whip, it is necessary to top-dress again during the leaf development period. The fertilizer most needed at this time is nitrogen fertilizer, because nitrogen is not only the main component of amino acids and proteins, but also can synthesize chlorophyll and promote photosynthesis. Therefore, if the lotus root lacks nitrogen fertilizer, the leaves will turn brown. Therefore, during the leaf top dressing, generally 10 to 15 kg of urea per acre is applied.

The leaf of the lotus leaf has been unfolded. When the fertilizer is sprinkled in the pond, it will fall on the lotus leaf. This not only results in the loss of fertilizer, but also burns the leaves because of too much localized fertilizer. Afterwards, the whole pool of water must be splashed with water, and the fertilizer on the lotus leaf is flushed so that the fertilizer falls into the water.

From the leaf stage, there is still another job called "turning hoe." Turning the hoe is also called back smashing, smashing, turning, and so on. It is to turn the top of the whip. The purpose of turning the hoe is to keep the whip on the side of the pond able to continue to grow, as well as to prevent the uneven density of the plants inside the pond. In the initial stage of leaf development, it is performed once every 5 to 7 days. When we see the new pumping leaves appear only about 1 meter away from the concrete pool, it indicates that the steamed bread has approached the edge of the cement pool and must be turned to the field in time. At the same time, if it is found that the plants in the field are not uniform, they should try to transfer too dense taro to sparse places so as to evenly distribute the oysters and increase the yield. Turning the head should first find the steamed bread. The most tender leaves are usually smoked at the front end of the whip. The position of the hoe is 30 to 60 cm in front of the leaf. You can reach out and dig trenches on both sides of the whip, and try to dig as long as possible so that it is not easy to break. Then gently lift the hoe with your hoe to turn the hoe into the field and bury it in the mud. Turning heads should be carried out on sunny days when the stems and leaves are soft to prevent the stems and leaves from being broken because they are too crisp and tender.

After the lotus leaves have been displayed, the ponds are densely populated and the ventilation conditions deteriorate. At this time, the weeds on the sides of the pool are also very lush. Therefore, the weeds on the edge of the pond are often removed to improve the ventilation conditions, which are very helpful for the growth of lotus roots. Benefits.

In the season of disease, the disease that occurs frequently in shrub cultivation is corruption. Lotus root disease, also known as blight and rot disease, is one of the most common and serious diseases occurring in the cultivation area of ​​lotus root. It is caused by a pythium invasive. Corruption disease mainly damages underground stems and roots, and causes yellow leaves on the ground, withered in heavy, and becomes severe at 23 to 30°C and continuous rain. After the lotus root infected with the spoilage disease, the edges of the pumped leaves dried up, then expanded to the middle, and finally the entire leaf curled and scorched. Severe onset of the plot, the whole field was yellow and fire-like. When a small amount of spoilage symptoms appear in lotus root, prevention and control work should be done with carbendazim 600 times solution or thiophanate-methyl 700 times solution, while 50% carbendazim plus 75% chlorothalonil wettability can be used. Powder, according to 500 grams per acre 30 kg mixed soil, stacking 3 to 4 hours after the field to maintain the shallow water layer. Both methods can be performed at the same time, once every 7 days, control 2 to 3 times.

Closure period

Try to find a broken needle under the green stem

In the late flowering period of the lotus root, the underground è—• whip no longer elongates, and it begins to expand into è—•, and it enters the è—• period. From the crusting stage, the upper leaves slowly turn yellow, and the nutrients absorbed by the plants, except for a small amount of transport to the lotus seeds, are transported downwards, and the sections on the whip are drilled into deeper soil layers. The apex gradually thickens and enlarges, accumulates and stores abundant nutrients, and forms a plump underground stem--mite. Generally, after the 15th section of the underground stem begins to grow into a cocoon, the formation process of the cocoon takes about 15 to 20 days. In the adult stage, the growth of the plant's shoots gradually slows down, but the transformation of nutrients inside the plant accelerates and the underground stems grow thick and fat. This requires a certain amount of soil temperature. From the beginning of the sowing period, water is no longer added to the concrete pool, leaving it to evaporate naturally.

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