What are the prevention methods for blueberry fertilizer burn? Latest measures explained
Blueberry is a relatively common berry fruit in daily life in our country, and it has a very large planting area in our country. When growing blueberries, fertilization is indispensable. However, when fertilizing, you must also pay close attention. If fertilization is improper, blueberries are highly prone to fertilizer burn. So how should it be prevented when growing blueberries? Below, the editor brings you the preventive measures for blueberry fertilizer burn. Let's take a look together!
1. Reasonable fertilization
Blueberry is a tree species that prefers ammonium nitrogen. If nitrate nitrogen is applied, not only will it be unable to absorb it, but it will also cause poor growth of the blueberry tree, so nitrate nitrogen must not be applied. At the same time, attention should also be paid to the application of chlorine fertilizer, and chlorine-containing fertilizers must not be applied. When applying farmyard manure, make sure it is fully decomposed to avoid fertilizer burn. When fertilizing, ensure the proportion of nitrogen, phosphorus, and potassium fertilizers and various medium and trace elements in the fertilizer, and apply reasonably according to the different growth stages of blueberries to meet the nutritional needs of the blueberry tree at different growth periods.
⟦NL>2. Fully decompose organic fertilizer
Organic matter in the soil has various effects such as improving the soil, increasing soil looseness, and maintaining soil moisture and nutrients, and it is also a main condition for improving blueberry quality. In many blueberry orchards, however, the soil's organic matter content is relatively low. Therefore, during production, we should pay attention to increasing the application of organic fertilizer to raise the soil's organic matter content. The types of organic fertilizer should mainly be those rich in cellulose, fully decomposed, and low in salt content. Be sure not to apply fertilizer that has not been fully decomposed directly into the orchard, otherwise fertilizer burn is very likely to occur.
3. Fertilization amount
When fertilizing, we should control the amount well according to various factors such as tree age, growth condition, and blueberry yield. The nutritional needs of the blueberry tree can be judged based on leaf analysis. Control the proportion of each nutrient element well, and do not over-apply or bias-apply a certain fertilizer. At the same time, fertilization can also be carried out according to the target yield. Through extensive production practice, it has been found that, generally, for a blueberry orchard producing about 100 kg per mu, the annual demand for pure nitrogen per mu is about 12 kg, and for organic fertilizer, about 1-2 kg is applied per 1 kg of fruit. Therefore, in production, we can control the fertilization amount according to this data to avoid excessive fertilization.
4. Fertilization method
The fertilization method is also very important. If the fertilization method is incorrect, then blueberries are also highly prone to fertilizer burn. The roots of blueberries are generally distributed relatively shallowly, usually in the soil layer at about 1-20 cm. Therefore, when fertilizing, especially with organic fertilizer, we should mainly apply shallow fertilizer on the soil surface. It is best to carry out integrated water and fertilizer management, dissolving fertilizer in water. Then provide it to the roots through drip irrigation, which can greatly enhance fertilization safety.
The above is a brief introduction to the preventive measures for blueberry fertilizer burn. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!