Detailed Explanation of the Causes of Cucumber Tip Rot and Its Prevention and Control Methods
When cucumbers are cultivated in greenhouses in winter and spring, especially in winter, because the temperature is relatively low, the root absorption capacity of cucumbers weakens, and tip rot is very likely to occur, which seriously hinders cucumber production. So what exactly is cucumber tip rot? Are there any methods to solve it? Follow the editor to learn more about it.
I. Causes of Cucumber Tip Rot
There are many causes of cucumber tip rot, mostly due to improper management and diseases. Among the management factors are high planting density, continuous cropping for many years, excessive application of nitrogen fertilizer, inadequately decomposed organic fertilizer, poor ventilation, high humidity, poor drainage, and insufficient light. The main diseases are scab, gummy stem blight, and bacterial marginal blight. Their symptoms differ, but they all share one common point, which is that they cause cucumber tip rot. Therefore, for the causes of cucumber tip rot, we should adopt targeted prevention and control measures to promote robust cucumber growth and improve yield and quality.
II. Prevention and Control Methods
1. Protect and strengthen the seedlings
After the cucumber seedlings are transplanted, a new high-lipid film should be sprayed in time. This can effectively prevent aboveground moisture from evaporating, prevent the seedling water from transpiring, isolate the harm of pests and diseases, shorten the seedling revival period, and promote strong seedlings. After seedling revival, temperature and water control measures can be used to promote downward rooting, enhance the root absorption capacity, and cultivate strong seedlings.
2. Hoeing
After covering with film, the two sides of the plastic film can be lifted to near the main stem, and then hoeing can be carried out multiple times in the greenhouse. Hoeing should go from shallow to deep, and the shallow roots should be intentionally broken to promote deep rooting, thereby enhancing the root absorption capacity and the plant's cold resistance. If deep hoeing is done from the beginning, it will damage the root system. Not only will it fail to promote downward rooting, but it may also cause plant death.
3. Spraying
In the early stage of cucumber tip rot, while spraying growth regulators and nutrient solutions, some pesticide fungicides and new high-lipid film should also be added to prevent pathogens from directly invading through wounds and to prevent the spread of pathogens from causing greater losses.
4. Root irrigation with micro-fertilizer
At the appropriate time, in addition to root irrigation with Genshitong + micro-fertilizer, this can induce the plant's absorption, digestion, and release of nitrogen, phosphorus, potassium, and various trace elements in the soil, enhance the positive energy of fruit development, and improve cold resistance.
The above is an introduction to the causes of cucumber tip rot and its prevention and control methods. We hope it can help you. To learn more related knowledge, please keep following us.