The Latest Methods for Preventing and Controlling Lodging in Sunflower Cultivation
The sunflower is an oil and grain crop, and it is also an ornamental plant with extremely high ornamental value. The sunflower has strong adaptability to the environment and is often used for cultivation on wasteland, protected cultivation, environmental improvement, soil improvement, and so on. However, when cultivating sunflowers, for various reasons, sunflowers may experience lodging to varying degrees. So how do we prevent this phenomenon from occurring? And what symptoms will appear when sunflowers lodge? Let's take a look together.
1. Why do sunflowers lodge?
Lodging during the growth of sunflowers most commonly occurs just before harvest, and it has a very large impact on sunflower yield. Lodging in sunflowers is not caused by a single reason; it may be improper variety selection, improper selection of the planting site, or improper planting density, and finally poor nutrition, improper field management, damage from pests and diseases, and weather conditions are all causes of lodging in sunflowers.
2. Signs that sunflowers are lodging
Many people say that there are no symptoms before sunflowers lodge, that it is generally a sudden phenomenon, and that there is simply no time to take countermeasures. In fact, before sunflowers lodge there will be certain symptoms. First, if the sunflower stalks are relatively thin and weak, lodging is very likely to occur; second, if the planting density is too high, then when the weather changes, lodging is also very likely to occur; and also, if a large amount of pests and diseases are found in the field and the sunflower stalks or some parts have been damaged, lodging is also very likely to occur. It is not that lodging happens without reason, but rather that we have not considered it from multiple aspects, and that is ultimately what causes irreversible losses.
3. Prevention and control methods
To prevent sunflowers from lodging, we need to analyze the causes that may lead to this phenomenon. First, we can reduce the occurrence of this phenomenon through variety selection, trying to choose short-stalked varieties with hard stems and strong disease resistance. Second, apply topdressing scientifically to ensure thick and strong sunflower stalks, improve their wind resistance, and avoid lodging caused by weather conditions. Also, plan the density scientifically, and plant reasonably while making full use of land resources. In addition, during the growth of sunflowers, water reasonably according to their needs to avoid root rot. Finally, strengthen field management, and when pests and diseases are found, control them promptly at the early stage to suppress the worsening of the condition.
The above is all of today's introduction from the editor about the causes of lodging during sunflower cultivation and the prevention and control methods. We hope it can help friends in need, and if you have any questions about the specific implementation details, you can leave a message for the editor.