Causes and control methods of dry heartburn in cauliflower

Cauliflower has good nutritional value, and many people plant it, but the harm of dry heartburn often occurs in the planting process, which is a serious disease of cauliflower, which needs timely prevention and control in order to ensure the growth of cauliflower. So how to prevent and cure broccoli broccoli heartburn? Let's get to know it with the editor.

1. Symptoms

When dry heartburn occurs in cauliflower, at first, the edge of the top leaf is water-stained translucent, or gradually becomes light yellow, and the top section will gradually wither and wrinkle into a white dry belt, seriously hindering the heart growth of cauliflower, causing the leaves not to protect the ball, affecting the color of the flower bulb, and causing the color of the flower ball to turn yellow and purple, seriously affecting the commodity. In serious cases, it may also lead to a serious reduction in flower ball production.

2. The cause

There are many reasons for cauliflower dry heartburn, such as high concentration of soil solution, which can not absorb nutrients and water normally, but also cause burns and eventually form dry heartburn; excessive application of nitrogen fertilizer causes plants to absorb and resist other elements, resulting in dry heartburn; soil salinization and poor water quality of irrigation are also the causes of dry heartburn. The disease is the most serious in the heading period of cauliflower, and the storage period will continue because of physiological activities. When calcium fertilizer is stopped, dry heartburn will also have the trend of abnormal incidence.

3. Prevention and control methods

① because the market is now mostly planted in the greenhouse, so production concentration, highly intensive cultivation and continuous cropping for many years lead to soil calcium deficiency, so it is necessary to reasonably implement the rotation system to avoid calcium deficiency in the plot, which can not effectively control the heartburn of cauliflower, but also promote the growth and development of crops and help to increase production.

② chooses plots with good irrigation conditions when planting, leveling the land, watering timely and scientifically, especially in the early stage of development in case of high temperature and drought, using soil testing formula fertilization technology, pay attention to the reasonable collocation of nitrogen, phosphorus and potassium, so as to avoid partial application of nitrogen fertilizer or excessive application of nitrogen fertilizer. On this basis, we should pay attention to supplement calcium and manganese, can spray 0.7% water calcium chloride and 0.7% manganese sulfate, choose to spray heart leaves in the 8-10 leaves of cauliflower, the effect of calcium and manganese is better.

The above is the introduction of the causes and control methods of broccoli dry heartburn. I hope it can help you. If you want to know more about it, please follow us.