The so-called physiological death of cucumber roots means that the amount of lateral roots and hairy roots of cucumbers is significantly reduced, and the root xylem becomes brown or rot. The apparently dead roots can also produce lateral roots after a period of time. Two significant physiological deaths of cucumber roots during the entire reproductive cycle. The first physiological death occurred 15-20 days after flowering until the first fruit was harvested. At this stage, plant nutrients began to supply to the reproductive growth, because the fruit retains part of the nutrients, making the root system does not adapt to this change, so the amount of lateral roots and hairy roots of the plant has been reduced, improper management can lead to some roots browning or decay. Production can take the following preventive measures: root melon before harvesting roots to promote plant growth and balance; root melon early picking, so as not to fall smashing; root melon harvest before and after the management of fertilizer and water. The second physiological death began approximately in the middle and late stages of picking the melons, that is, the growing period of the plants reached about 100 days. After vigorously growing the plants, the roots began to gradually decline after the initial stage of human growth. The amount of roots decreased, the color of the upper leaves became lighter, the elongation of the leading faucet slowed down, the stems became weak, and the plant growth slowed down. If it is not managed properly, it will seriously affect the post-production and cause the plant to pull up early. The following preventive measures can be taken in production: 1 Increase the organic fertilizer, improve the structure of the soil pellet, and provide good conditions for the growth of the root system. 2 The production of protected land should be cultivating, loosening the soil, increasing the oxygen content in the soil, and promoting root regeneration. 3 regulate the relationship between plant vegetative growth and reproductive growth, cultivation on this period can not let the plant fall into the big melon, melon strips grow into the harvest, if necessary, can be appropriate sparse melon. 4 Strengthen plant nutrition and pest control, timely foliar dressing, and quickly replenish plant nutrition. Foliage topdressing can be carried out simultaneously with pest control. Once in 7~10 days, use amino acid foliar fertilizer, sweet and sour liquid (1 part sugar, 1 part urea, 1 part potassium phosphate, 2 parts vinegar) 50~100 Double fluid. After a large number of new roots occur, it gradually shifts to normal management. 5 spray auxin, promote new root fast hair, can be used 0.1% naphthalene acetic acid water spray 600 ~ 800 times. 6 Moisture management is better to see dry see wet. Handheld Glycohemoglobin HbA1c Test Kit A1C Test,Diabetes Management,Glycated Hemoglobin Test,Glycated Hemoglobin Assay Wuxi BioHermes Bio & Medical Technology Co., Ltd. , https://www.biohermesglobal.com