What causes fertilizer burn in blueberries?
Blueberries are grown on a very large area in our country and are popular with many people. The current market price of blueberries is also relatively high, and the profit margin is fairly large, so more and more people are starting to grow them. And when growing blueberries, the phenomenon of blueberry fertilizer burn often occurs. It seriously affects the growth of blueberries, so what causes blueberry fertilizer burn? Below, the editor will give you a brief introduction, let's take a look!
1. Poor fertilizer quality
When we apply farmyard manure, it is generally mainly based on various manures. These manures contain very rich organic matter. If they are not fully decomposed before being applied to the soil, then a large amount of heat will be produced, causing fertilizer burn to the roots and the appearance of root rot and other problems. In addition, when applying organic fertilizer, many fertilizers are made from industrial and agricultural waste or sludge. Although the labeled amounts of these substances can reach the nutrient levels of organic matter and nitrogen, phosphorus and potassium, many of the raw materials themselves also contain large amounts of harmful substances such as heavy metals, causing serious damage to the roots.
2. Improper chemical fertilizer use
During the growth of blueberries, when applying chemical fertilizers, if fertilizers such as ammonium nitrate, phosphorus and potassium nitrate nitrogen fertilizers, and chlorine fertilizers are used, then it is very easy to cause damage to blueberries. Moreover, many people may ignore the quality of chemical fertilizers when buying them and use some inferior chemical fertilizers. The toxic and harmful substances in some inferior chemical fertilizers exceed the standard, and after use they can very easily cause root rot at the fertilization site, yellow leaves, decline in tree vigor, and so on. In severe cases, they can also cause the branches and leaves to dry up and die, seriously affecting yield and blueberry quality.
3. Wrong fertilization position
When fertilizing, we should pay attention to controlling the fertilization position well. If the fertilization position is wrong, then the impact on the growth of blueberries is also very great. When applying chemical fertilizers, if hole application or trench application is used and it is too concentrated, then it will cause the local concentration to be too high, thereby causing root burn and death and the appearance of fertilizer burn. If the fertilization position is too close to the large roots of blueberries, then when too much fertilizer is applied, it is generally very easy to cause fertilizer burn, with part of the root system rotting, causing harm to the growth vigor and yield of blueberries.
4. Excessive fertilization amount
The economic value of blueberries is relatively high, and many people are happy to invest. However, when planting, especially for various beginners, the misunderstanding of blind fertilization is widespread. Many people, in order to let blueberry trees grow as quickly as possible, use the method of excessive fertilization, thereby causing too much fertilizer and the appearance of fertilizer burn. Therefore, when fertilizing, everyone must pay attention to controlling the amount of fertilizer according to the growth stage of blueberries, and must not fertilize excessively, so as to ensure the normal growth of blueberries.
The above is a brief introduction to what causes fertilizer burn in blueberries. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!