High-yielding cultivation management of burdock
Burdock is a biennial herb of the Asteraceae family and is known as "Toyo radish". It can be used as both high-grade vegetables and valuable Chinese medicinal materials. It is an emerging high-efficiency and economic crop. Its main cultivation and management techniques are as follows:
1. Soil selection The burdock is suitable for planting in sandy soil with deep, fertile and well-drained soil conditions. The soil requirements are neutral, and the field for planting burdock has to be deep-leveled and the depth of the cultivating layer is 50-60 cm. The ground is too shallow, the root system is difficult to deepen, the output is low, the length is not up to the requirements, the level is reduced when sold, and the efficiency is poor.
Second, dig deep into the three-ditch burdock bogey moisture, the growth process should not be the field of water, in order to prevent the humidity in the field is too large, we must dig deep ditch. After the land has been leveled, it is necessary to open a high-yielding ditch with a depth of more than 60 cm every 10 meters or so. The long field will open a ditch with a depth of 80 centimeters or more every 100 meters, and dig one at each end of the land. The head ditch with a width of 70 cm, a width of 50 cm, and a depth of 80 cm is used to ensure the matching of the three ditch and the drainage and irrigation.
Third, ridging cultivation of burdock generally ridge planting, ridge height 30 cm, ridge width 60 cm, ridge bottom width of 90 cm, ridge planting two rows of burdock, row spacing 40 cm, spacing 30 cm, every 667 square meters (1 Mu) can broadcast about 10,000 strains.
Fourth, to give enough basal fat burdock planting mainly to basal fertilizer, usually before ploughing every 667 square meters of laying out organic fertilizer 2000 kg, if the organic fertilizer is insufficient or no organic fertilizer, can be 667 square meters with 45% potassium sulfate compound content Fertilizer 40-50 kg, stratification is applied in the channel, no fat mixed and broadcast to prevent burning seedlings
Fifth, timely sowing of burdock can be sowed in spring and autumn sow cultivation, mainly in spring sowing cultivation, generally live in mid-April, before sowing with 50 °C warm water plus 50 grams per 50 kg carbendazim, soaking for 4 to 6 hours, Eli kills germs and promotes seed germination. Sowing should be carried out at the time of sowing, pouring enough water, sowing depth of 3 cm, sowing 2 to 3 seeds per hole,
6. Careful management of burdock should be managed in time. Seedlings should be divided and divided after emergence. Weak seedlings should be removed and strong seedlings should be retained. Cultivate and weeding in time after set seedlings. From the beginning of fruit enlargement to the early stage of fruit enlargement, if the weather is dry, we must always “running horse water†to keep the soil moist and strengthen the drainage during the rainy season. The burdock inflated period should not be submerged in water to prevent root rot and reduce the use value. Burdock has fewer pests and diseases, mainly powdery mildew and aphid, and it is necessary to strengthen the prevention and control.
VII. Harvesting Grading When harvesting burdock, we must dig deeply, remove the whole plant completely, remove the net sediment and fibrous roots, cut off and grade at 2 cm at the petiole. The burdock that has been sold on the market must be spotless, free of pests, strips of light and no bifurcation. The grading standards are: a product length of 70 cm or more, a coarse head diameter of 2 to 3 cm or more; a secondary product length of 50 to 70 cm or more, a rough head diameter of 1 to 3 cm or more; a tertiary product length of 30 to 50 cm, thick Head diameter 1 to 3 cm.
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