Is Otokqian Banner in Inner Mongolia suitable for growing yellow tobacco?

Yellow tobacco may not necessarily be suitable for planting in Otokqian Banner, Inner Mongolia. Yellow tobacco is a crop that requires less nitrogen. It is suitable for planting in areas with medium fertility, water and air permeability, rich potassium content, and no trace of nitrogen in the past three years. Solanaceous crops have been planted in fields with convenient drainage and irrigation.

1. Selection and arrangement of tobacco fields

2. Fertilization, transplantation and mulching

Use 50 kg of tobacco compound fertilizer per mu, 20 kg of potassium sulfate, Mix 15 kilograms of phosphate fertilizer and 20 kilograms of peanut bran for 15-20 days and apply them all in strips at once before transplanting. Keep a distance of 8-10 centimeters between the fertilizer and the tobacco seedlings to avoid damaging the roots. The transplanting time can be about 10 days earlier than open field cultivation, and it can be carried out in the afternoon on a cloudy or sunny day in mid-March. First use 150 ml of 50% butachlor herbicide mixed with 100 kg of water and spray evenly on the border, then plant tobacco in a single row per border, with a spacing of 50-55 cm, and 1000-1100 plants per mu. Drench the roots with water after planting: use 5 kg of potassium nitrate per mu, 5 kg of compound fertilizer, and add 300 kg of water. Finally, cover with a mulch film with a thickness of 0.005 mm and a width of 80 cm. The amount per mu is 4 kg. Cut holes to place seedlings. The sides of the border are compacted with mud to prevent wind blowing. The exposed film width is 30 cm. Note that the soil needs to be moist before spraying herbicides.

3. Strengthen field management

Conduct a comprehensive inspection 5-7 days after transplantation, and replace any missing seedlings in a timely manner. Do a good job in drainage and irrigation management. It is required that there will be no waterlogging when the rain stops. During drought, water can be poured into the water or water can be used to pour smoke. Top in time and leave leaves. Top at one time when 50% of the central flowers bloom. At the same time, remove 2-3 leaves, leaving 18-20 leaves per plant. The tobacco plants grow vigorously and the fields with high fertility will be rainy. If the weather is good, you can leave 2 more tablets; otherwise, leave 2 less tablets. Wipe the side buds every 3-5 days to ensure that the buds are no bigger than an inch.

4. Prevention and control of pests and diseases

The main pests include: cutworms, aphids, tobacco caterpillars, etc., which can be controlled with pesticides such as trichlorfon and aphids. The main diseases are: mosaic, bacterial wilt and black shank. You can use 1000 times of Phytosporin spray 1-2 times or DT 300 times of solution to spray the tobacco 2-3 times, 200 ml per spray or 800 times of DT, 1-2 times to 100 ml per spray.

5. Timely Harvesting

Generally, about 65 days after planting, when the leaves begin to mature, 2-3 pieces will be picked at each time according to the maturity characteristics, and every 7-8 days. Harvest once, the middle and lower leaves are picked after the dew dries in the morning, the upper leaves are picked when the dew is still wet in the morning, and the top leaves are harvested once when 4-6 leaves are fully mature. The harvested tobacco leaves must be sorted according to their parts, thickness and maturity, tied to poles and loaded into furnaces on the same day.