Why does yellow leaf and dry tip appear when wheat is greening and jointing? What measures can be taken to prevent and control? Wheat is the key period for wheat yield and is also prone to pests and diseases, so planters should do this. The management of the period of time, the next small series said that the reason for the emergence of yellow leaves, dry tips and control measures during the wheat rejuvenation period, I hope to help everyone. First, the reason for the emergence of yellow leaves and dry tips in wheat during the jointing stage 1. Physiological deficiency The lack of trace elements (calcium deficiency, iron deficiency, zinc deficiency, etc.) in wheat supplements the physiologically dry yellow leaves of wheat to different degrees, affecting the normal physiological activities of wheat. 2. Infection of pests and diseases When the wheat is green to the jointing stage, it is the time when the wheat grows vigorously. Due to the natural conditions such as climate, weather and temperature, it is easy to infect pests and diseases (such as aphids, red spiders, etc.) and spread viral diseases. At the same time, wheat sheath blight, root rot, stem rot, powdery mildew and other diseases are also at a high incidence, which can cause the pathological yellow leaf dry tip of wheat. 3. Soil and water and fertilizer reasons Returning to the green manure and applying too much urea, causing excessive nitrogen fertilizer, inhibiting the absorption of phosphorus and potassium, will also cause yellow leaves of wheat, and soil drought is also one of the main reasons. Second, prevention measures 1. Timely supplement trace elements to avoid physiological deficiency. 2, pay attention to the field management of wheat, timely discovery, symptom prevention and control, reduce the phenomenon of yellow leaf dry tip. 3. Spraying a spray of three sprays in a timely manner. In daily management, planters should focus on the spraying of pests and diseases, and effectively manage the normal and healthy growth of wheat. You may be interested in the following recommended content about the wonderful pictures and popular comments on wheat rejuvenation and jointing management. Welcome to read. 9V Battery Alarm,Alarm Battery,Smoke Alarm Batteries,Adt Alarm Battery Guangdong Isafenest Co.,Ltd. , https://www.isfenest.com.jpg "Causes and control measures of yellow leaves and dry tips in wheat during greening and jointing")
.jpg "Causes and control measures of yellow leaves and dry tips in wheat during greening and jointing")
