At present, it is the critical period for potato tubers to expand. With the onset of the flood season, late blight is prone to occur under conditions of high temperature and high humidity. At the same time, the damage of underground pests has gradually increased. Therefore, it is particularly important to grasp field management.
First, watering fertilizer in time.
Tuber enlargement period is a critical period for the rapid expansion of potato underground tubers. If the water supply is not timely during this period, it will not only affect the enlargement of the tubers, but also will cause the skin of the tubers to age and affect the marketability.
Therefore, we must pay attention to maintain the soil moisture content of about 70% of the maximum water holding capacity in the field, that is, hold a group, landing is appropriate. One week to 10 days before harvest, irrigation should be stopped to ensure moderate drought before harvest and promote aging of the epidermis and facilitate harvesting.
Potassium can promote the expansion of the tuber and increase the moisture content of the tuber. Therefore, the amount of potash fertilizer is the highest among all the elements. If the amount of nitrogen fertilizer is too large, it is not conducive to the expansion and ripening of the tuber, and the starch content in the tuber decreases, which affects its commercial property. If high-potassium type (20:10:30 or 15:15:30) of Fangrun or beacon water-soluble fertilizer can be used for topdressing, the amount of mu is about 10 kilograms.
Second, the prevention of late blight.
With the increase of hot and rainy weather, potato late blight increased. Potato late blight, also known as potato disease, is a rapidly spreading, devastating disease that not only infects leaves, but also causes lesions in stems and tubers, leading to severe disease.
At present, we must focus on preventing the occurrence of late blight, and we can use Jin Lei, Miconazole and other agents to prevent it. Diseased plants should be promptly removed and used to prevent the spread of disease. Select fine weather, 600 times per acre with silver Farley suspension agent, 77% can kill 3000 times WP 500 times spray.
Third, the prevention and control of underground pests.
As potato wedges expand, underground pests increase. Ground tigers, golden worms, cockroaches, cockroaches, etc. are the main pests that injure the potato block. These pests are usually harmed in the ground, difficult to find, but also more difficult to control, so it should be prevention-based.
Select chlorpyrifos or phoxim and other agents, mixed in fried wheat bran, corn or soybean meal, made of bait, spread in the field at night. Or use it when watering to reduce the number of pests in the field.
Hebei Abiding Co.Ltd, a professional food supplier, was established in 2005 in Shijiazhuang, China. We specialize ourselves in supplying Organic Tomato Paste and organic pastas. Conventional ones are also available to supply. We can make the private labels according to the customers' requirement. Our products have EU, NOP and JAS organic certificates. They are also Kosher certified. We have business relationships with importers and wholesalers from around the world, mainly in Europe and America. Over the years, we have earned highly recognition from clients due to our qualified service and steadily increase our market share year after year.
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