How to prevent and control the summer dormancy of yardlong beans? A full breakdown of practical measures
When growing yardlong beans, if summer dormancy occurs, the plants will weaken, the leaves will turn yellow, the number of flowers will decrease, and flowers and pods will drop. As a result, the yield of yardlong beans will be seriously affected and decline. This is very unfavorable to growers' planting returns, so what should be done if yardlong beans show summer dormancy? Below, the editor brings you the prevention and control measures for summer dormancy in yardlong beans. Let's take a look!
1. Maintain the environment
Summer dormancy generally occurs in summer. In summer, because high-temperature and high-humidity environments are likely to occur, yardlong beans are also prone to excessive vegetative growth. If drought is added on top of this, it will inhibit pollination of yardlong beans, causing them to show summer dormancy. Therefore, if we want to prevent and control summer dormancy, we must first pay attention to creating a suitable growing environment for yardlong beans. For example, control the planting density well, strengthen management against excessive seedling growth, and do a good job of hardening the seedlings. Avoid excessive growth of seedlings and keep every seedling with sufficient growing space.
2. Strengthen ventilation
If yardlong beans are grown in a greenhouse, then we also need to pay attention to doing a good job of ventilation and maintaining a suitable greenhouse temperature. When the rainy season comes, pay attention to timely drainage. Prevent the soil from having too much standing water, which affects the growth of yardlong bean roots, causes root rot and similar problems, and thereby triggers summer dormancy. Only by maintaining a suitable environment can the occurrence of summer dormancy in yardlong beans be reduced in summer. If yardlong beans grow excessively, control them in time. The hoeing method and other methods can be used to control the excessive growth trend of yardlong beans.
3. Rational fertilization
Unreasonable fertilization is one of the main causes of summer dormancy in yardlong beans. When growing yardlong beans, we should have a reasonable fertilization plan. When applying base fertilizer, do not add too much nitrogen fertilizer, to prevent excessive nitrogen fertilizer from causing excessive growth of yardlong bean seedlings and affecting the number of flowers and pods. Also, when fertilizing, control the amount of fertilizer according to soil fertility. It is best to carry out soil testing and formulated fertilization. Under normal conditions, about 3000 kg of decomposed farmyard manure should be applied per mu as base fertilizer, together with an appropriate amount of calcium superphosphate, potassium sulfate, etc. Then in the later stage, appropriately increase the proportion of phosphorus and potassium fertilizers and reduce the application of nitrogen fertilizer.
4. Pruning and topping
In addition to the above, we should also pay attention to doing a good job of pruning and topping the yardlong bean plants. Control the pod-setting position of yardlong beans well to prevent the pods from setting too high, which leads to reduced yield. The side buds sprouting from the base of the yardlong bean plants should be removed in time. Then, side buds about 50 cm above the main branch of the yardlong bean plant should also not be retained. Improve the ventilation at the base of the plants. When the yardlong bean plants begin to cover the entire trellis, carry out topping. Leaf buds sprouting from the leaf axils should also be removed in time to avoid consuming too many nutrients, ensure normal growth of yardlong beans, and prevent summer dormancy.
The above is a brief introduction to the prevention and control measures for summer dormancy in yardlong beans. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!