After the summer, it is an important stage of yam management. Therefore, we must do a good job in the management of yam and the supplement of fertilizer and water at this stage. How should the yam be managed in the middle and late stages? Let's let Xiaobian introduce it to everyone.

Yam management in the middle and late stages

1, the operation of fertilizer water

When the yam stems and leaves are full of shelves, it is necessary to topdress once, and the urea is applied for 15-20 kg of urea. It can be applied with potassium fertilizer or sprayed foliar fertilizer to improve the resistance and increase the yield. Yam is a drought-tolerant economic crop. In order to increase production, when encountering high temperature and drought, it should be watered in time. In case of continuous rainy weather, it is necessary to promptly eliminate the water in the sputum to prevent cockroaches. The seedlings died due to water and water shortage.

2. After the initial flowering of the anti-mite and drought-resistant yam, it often encounters rainy and temperate climate, which will lead to soily and heavy waterlogging, and the permeability of the field will decrease, which will affect the tuber expansion of the yam. So be sure to clear the drain. While dredging the four surrounding trenches of the good field, it is necessary to follow the direction of the yam to clear the good trenches. The spacing between the trenches is generally 10 meters. The side ditch is generally more than 80 cm deep and has a width of about 40 cm; the ditch is generally more than 40 cm and the depth is about 30 cm. Drought can also affect the growth of yam, leading to malformation of yam tubers. Drought prevention measures generally use pumping water or pumping water in the afternoon on sunny days. For weaker fields, 5 to 7 kg of urea per 667 square meters can be combined with drought resistance. It can also be rooted with light manure.

3, pest control

The yam is more resistant and the disease is lighter. It is mainly based on cultivation and prevention, and it is necessary to reach the prevention and treatment standards before it can be used. The pests are mainly golden worms, ground tigers, crickets, nematodes, etc. They can be used to kill insecticides with 5% of chlorpyrifos granules mixed with 2 kg of chlorpyrifos granules, or 48% chlorpyrifos emulsifiable concentrate 500 times.

The main diseases of Lichuan yam are anthracnose, brown spot, and nematode. Anthracnose and brown spot prevention can be sprayed with 70% mancozeb 800 times solution or 80% carbendazim 500 times solution. The treatment can be used with 25% bromide 300-450 times or 25% prochloraz 500-1000. Double spray. The treatment of nematode is mainly insecticidal. It can be mixed with 10% strong (European killing) or nematode Bik granules in the topdressing process. It can also be used in combination with two or more drugs in the prevention of disease (Nematode Mix spray with fungicide). When spraying pesticides, it is better with pesticides.

4, timely harvest

The harvest time of yam is about the end of October and before the winter. Generally, the harvest starts from the end of the scorpion. First, the 60 cm square pit is dug. The person sits on the edge of the pit. Then, the yam shovel is used to shovel the yam along the soil on the root side 10 cm below the ground, and the shovel is seen at the bottom of the yam. To the tip of the tuber. Hold the upper end of the yam plant and shovel the lateral roots along the tuber until the roots of the yam plant are attached to the ground layer, so that a complete yam can be taken out.

The above is the management precautions of the yam in the middle and late period introduced by Xiaobian. For this period of time, the yam can grow normally. Everyone must do a good management measure. I hope that the Xiaobian article will help everyone.

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