Cultivation techniques of Ophiopogon japonicus

Before planting, the soil should be deeply ploughed, and decomposed manure or manure 1000 kg and 50 kg of calcium superphosphate should be applied per mu in combination with soil preparation. Before planting, shallow plough 1 time, level off and rake, and make a flat bed with a width of 1.3 m and a width of 40 cm, with drainage ditches around it.

Combine the harvest of Ophiopogon japonicus with the harvest and seeds. Choose sunny evening or cloudy day for planting. The entire border was furrowed horizontally, with row spacing of15-20cm, depth of about 5cm, plant spacing of 8 8- 10/0cm, and 3 seedlings were planted. Don't plant it too deep or too shallow. Too deep, difficult to emerge, easy to produce high seedlings, low yield; Too shallow, exposed, easy to die or lodging, affecting the survival rate. Plant the seedlings vertically near the ditch wall, so that the roots are vertical and must not be bent, otherwise it is not easy to take root near the ditch wall. After planting, cover the soil, compact it to make the roots closely connected with the soil, then clamp the seedlings with your feet and step on them to make the seedlings stand upright and stable. Irrigate 1 time root-fixing water immediately after planting to facilitate the early development of new roots. Ophiopogon japonicus turns green about 15 days after planting. If dead seedlings are found, they should be pulled out in time and replanted on cloudy days or in the evening. 15 After planting, you must loosen the soil and weed 1 time, and then weed 1 time every 1 month or half a month in sunny days to promote early tillering and rooting. /kloc-after 0/0, it is advisable to loosen the soil shallowly without damaging the fibrous roots. Ophiopogon japonicus is a dwarf plant, and there should be no weeds in the field to avoid grass shortage.

Ophiopogon japonicus likes fertilizer, and reasonable topdressing of nitrogen, phosphorus and potassium is the key to increase yield of Ophiopogon japonicus. Generally, topdressing is carried out three times a year, 1 time. In July, 2500 kilograms of human and animal manure water and 50 kilograms of decomposed cake fertilizer are applied per mu. The second time, in early August, 3000 kg of animal manure water, 80 kg of decomposed cake fertilizer and 0/50 kg of furnace ash were topdressing per mu; For the third time, in the first ten days of 1 1, topdressing 3000 kg of animal manure water, 50 kg of cake fertilizer and 50 kg of calcium superphosphate per mu to promote the growth and hypertrophy of root tubers.

Ophiopogon japonicus needs a lot of water during its growing period. As the temperature rises and evaporation increases in Xia Hou, it is necessary to irrigate in time. In the case of dry weather in winter and spring, water 1-2 times before spring to promote the growth and development of root tuber.

Ophiopogon japonicus likes humid environment and can be intercropped when planting. Intercropping corn in summer and autumn is better, which can reduce direct glare and is beneficial to the growth of Ophiopogon japonicus. In winter and spring, garlic is intercropped in some places, but at this time it is in the stage of underground stem expansion and development of Ophiopogon japonicus, and it is usually harvested as a good Ophiopogon japonicus in the first half of April in the second or third year after planting. Turn over the soil for 25cm in sunny days to make Ophiopogon japonicus turn out, shake off the soil, cut off the root tuber and fibrous root, put them into the washing basket respectively, and rub them with their feet in running water to clean up the sediment. Spread the cleaned Ophiopogon japonicus on a drying mat or threshing floor, dry it, gently rub it with your hands, and then dry it. Repeat this several times until the fibrous roots are rubbed off and the impurities are screened out with a sieve. In case of rainy days, it can be baked with slow fire at 40℃-50℃ 10-20 hours, taken out and left for several days, then dried until it is completely dry, and impurities are screened out to obtain the product. Generally, the yield per mu of dried Ophiopogon japonicus is about 150 kg, and it reaches 250 kg at high yield. Ophiopogon japonicus is better for its big, long, prismatic and yellow-white meat.