Cultivated lotus root is commonly used as a seed for planting with a high cost per acre, with an acreage of up to 400 kilograms per mu. If you use the top buds of a dragonfly to plant seeds, you will not only save a lot of earthworms, but also be light and easy to use. The nursery site preparation site chooses a fertile, dry land and prepares for soil preparation in the early spring. Apply 40 lbs of pig manure per mu, 25 kg of phosphate fertilizer, 15 kg of potash, 25 kg of ammonium bicarbonate or 10 kg of urea. After repeated mixing, make a 1.5-meter-wide, length-limited Yangshuo, when the temperature rises to about 12°C, when the buds on the corpus callosum are cut off with a knot, about 10 cm long, the incision is glued with fresh grass ash, and lightened by hand. By tapping into the ground, there is no need for deepening and the top of the bud is exposed. A layer of rotted, damp orange straws is placed on top and covered with a film, and the membrane is often kept moist. In general, one species can cut 7-8 knotted buds. Planting and Planting In early April, when the seedlings grow 1-2 true leaves and the adventitious roots sprout on the terminal bud, they can be transplanted and planted in Daejeon. Before transplanting, Daejeon can be placed in a depth of about 15 cm. Water, then buried the earthworm 1.5 centimeters underground. When the roots were planted, the roots were protected from injury, and planting was carried out with a row spacing of 1.5 m with a spacing of 1 m and evenly spaced. The first line of top buds should be planted in the same direction, and the second line of top buds should be planted opposite to the first line. If the management of Putian is low and unstable after transplanting, the irrigation surface should not exceed the surface of the leaves. When the temperature rises and gradually stabilizes, release water 17 cm. May is a critical period for the entire seedlings. The depth of water is maintained at about 20 cm. The growth is strong from June to July. The water depth must be maintained at about 20 cm. From late July to late August, it is the critical period for scarring and the water depth is reduced to 15 cm. Around, to adjust the temperature difference between day and night, to promote lotus root enlargement, seedlings can be applied after 10 days after transplanting a small amount of chemical fertilizer, ammonium bicarbonate 15 kg per acre, the mid-term attention with the application of potash, 10 kg per mu; late attention to phosphorus and potassium, each Mu each Shi 10 kg. Other fields are the same as conventional cultivation methods.
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