What are the preventive measures for blueberry fertilizer burn? A detailed explanation
Blueberry is a relatively common berry fruit in our country's daily life, and it has a very large planting area in our country. When growing blueberries, fertilization work is indispensable. But when fertilizing, you also need to pay a lot of attention. If fertilization is improper, blueberries are very prone to fertilizer burn. So how should it be prevented when growing blueberries? Below, the editor has brought you the preventive measures for blueberry fertilizer burn. Let's take a look together!
1. Reasonable fertilization
Blueberry is a tree species that likes ammonium nitrogen. If nitrate nitrogen is applied, not only can it not be absorbed, but it will also cause poor growth of blueberry trees, so nitrate nitrogen must not be applied. At the same time, pay attention to the application of chloride fertilizer, and do not apply chlorine-containing fertilizers. When applying farmyard manure, make sure it is fully decomposed to avoid fertilizer burn. When fertilizing, ensure the proportion of nitrogen, phosphorus, 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 blueberry trees at different growth periods.
2. Fully decompose organic fertilizer
The organic matter in the soil has various effects such as improving the soil, increasing soil looseness, and maintaining soil moisture and nutrients. It is also the main condition for improving blueberry quality. In many blueberry orchards, the soil organic matter content is relatively low. So during production, we should pay attention to increasing the application of organic fertilizer to increase the soil 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 directly apply fertilizer that has not been fully decomposed into the orchard, otherwise it is very prone to fertilizer burn.
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 blueberry trees can be judged based on leaf analysis. Control the proportion of each nutrient element well, and do not over-apply or apply only a single type of fertilizer. At the same time, fertilization can also be carried out according to the target yield. Through a large amount of 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 these data to avoid excessive fertilization.
4. Fertilization method
The fertilization method is also very important. If the fertilization method is incorrect, it can also very easily cause blueberry fertilizer burn. The roots of blueberries are generally distributed relatively shallowly, usually in the soil layer about 1-20 cm deep. So when fertilizing, especially with organic fertilizer, we should mainly apply shallow fertilizer to the soil surface layer. It is best to carry out integrated water and fertilizer management, dissolving the fertilizer in water. Then provide it to the roots through drip irrigation, which can greatly enhance the safety of fertilization.
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 I hope it can help everyone!