Causes of Dry Leaf Tips in Chives and the Latest Control Methods
Chives are a fairly popular vegetable in our daily lives and are grown over a very wide area, but during cultivation the phenomenon of dry tips on chive leaves often occurs. This situation seriously affects the quality of chives, reduces economic returns, and brings certain economic losses to farmers. So what causes dry tips on chives? And how should they be controlled? Let's take a look with Qinnong Web.
1. High soil acidity
Chives prefer soil that is on the neutral side. During cultivation and growth, if the soil acidity is too high, or if acidic fertilizers such as diluted manure, cake fertilizer, or ammonium sulfate are applied to the soil over the long term during fertilization, the soil acidity will also increase and cause acidification. When chives grow in acidified soil, acid damage is triggered, leaf growth is slow, and the leaf tips turn yellow and dry up.
Control method: Test the soil pH value before planting, and pay attention during fertilization. Acidic fertilizers should not be applied over the long term. If soil acidification occurs, lime powder can be scattered into the soil to adjust the pH, but it is not suitable for use in greenhouses.
2. Harmful gases
The phenomenon of harmful gases causing dry tips on chive leaves mainly occurs in greenhouses, because the ventilation of greenhouses differs somewhat from open-field cultivation, which is unfavorable for the release of harmful gases. Applying a large amount of acidic fertilizer before covering the greenhouse will produce a large amount of ammonia during decomposition, and combined with greenhouse cultivation, this causes the ammonia content in the air to become higher and higher, resulting in yellowing leaves and drying up of chives.
Control method: Use manure and chemical fertilizers reasonably, and do not apply an excessive amount at one time. Follow the principle of applying small amounts more frequently, water promptly after fertilization, avoid applying fertilizers with high acidity, and apply fully decomposed organic fertilizer as much as possible.
3. High temperature and poor ventilation
Chives are a warm-loving vegetable and grow suitably in a 5-35 degree environment, but if the temperature during cultivation remains above 30 degrees for a long time and ventilation is not carried out in time, or if it suddenly clears up after a rainstorm, leaf withering will occur.
Control method: Master the correct ventilation method. When the temperature inside the greenhouse is 20-30 degrees, a small amount of ventilation can be released appropriately. As the temperature continues to rise, ventilation should also be correspondingly increased. Ventilation should be done slowly, and cold air should not be allowed to enter suddenly. Through ventilation, appropriately adjust the day-night temperature difference and narrow the temperature gap.
4. Nutritional imbalance
During the growth of chives, in addition to common elements, various trace elements are also needed. If these trace elements are deficient, causing nutritional imbalance, it can also lead to dry tips in chives. For example, when calcium is deficient, the leaves become yellow and the dry tips die; when boron is deficient, the heart leaves turn yellow and growth is slow; and if boron is excessive, the heart leaves will also die.
Control method: Appropriately apply some organic fertilizer during fertilization to ensure what chives need for growth. If yellowing and dry tips occur due to nutritional imbalance, promptly supplement the corresponding trace elements.
The above are the causes of dry leaf tips in chives and the control methods brought to you by Qinnong Web. We hope it can help you. To learn more about chive cultivation techniques, please stay tuned to Qinnong Web.