How to treat the redness of rice leaves
First, reasons
The redness of rice leaves is caused by the high temperature at this stage of growth. The transpiration of its leaves is strong in high temperature weather, which is very prone to physiological water shortage. In addition, high temperature will generally be watered, when the strong irrigation will cause the root system to be in a state of stagnant water and hypoxia blackening, and then lose vitality, so that the leaves have symptoms of redness.
II. Prevention and control methods
1, watering: watering should be alternating between dry and wet, not excessive at one time, a small amount of watering at a time, and so on when there is no clear water in the field, so repeat the cycle, remember that there can be no large amount of stagnant water.
2. Fertilization: if you find that the leaves are red, you should apply fertilizer in time, so that you can choose some fertilizers containing potassium, and you can also spray an appropriate amount of potassium dihydrogen carbonate solution to the leaves, so as to reduce the disease and improve photosynthesis.
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What if there are white spots on the leaves?
There are many reasons for white spots on cucumber leaves, if it is caused by a cold wind, you should pay attention to the air from the back of the wind, the tuyere should gradually increase from the small, or hang a piece of plastic film on the inside of the air. If the temperature is too low, heat preservation measures should be adopted to control the temperature between 25 degrees and 30 degrees during the day and not less than 10 degrees at night.
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