Matters needing attention in foliar fertilizer spraying

When growing crops, no matter what they are, they all need fertilizer to provide nutrition. When applying fertilizer, we should not only apply fertilizer in the root, but also pay attention to the spraying of foliar fertilizer. Foliar fertilizer is the key to supplement trace elements for crops, and when spraying foliar fertilizer, there are many things we need to pay attention to. Today, the editor brings you some notes on foliar fertilizer spraying, let's take a look at it!

1. Pay attention to concentration

When we spray foliar fertilizer, like fertilization, we should pay attention to control the concentration of foliar fertilizer. The concentration of foliar fertilizer is too high and too low is very disadvantageous to its growth. If the concentration is too high, then after spraying to the leaves, the heat generated is too large, which can easily lead to leaf burns, affect the growth of leaves, serious can lead to withered leaves and fallen leaves and other phenomena. If the concentration is too low, it will not only increase labor costs, but also can not guarantee the nutritional requirements of crops. Therefore, when we spray foliar fertilizer, we should prepare suitable foliar fertilizer according to the actual situation of fertilizer variety, crop type and so on.

2. Spraying time

When spraying foliar fertilizer, we should pay attention to natural environmental factors such as temperature, humidity, wind and so on. Because these factors have a direct impact on the effect of foliar fertilizer spraying. When spraying foliar fertilizer, try to do it when there is no wind, cool, high humidity and low evaporation. It should usually be done before nine o'clock and after 16:00. After spraying, if it rains, then make up the spray in time. Then we have to understand the demand for nutrients according to the growth stage of crops, and choose the nutrients that are most needed by crops to focus on spraying to ensure the effect of spraying.

3. Combined fertilization

When spraying foliar fertilizer, we should also pay attention to the traditional fertilization work. And mainly by fertilization, supplemented by foliar fertilizer. Because the root of the crop can be absorbed more strongly and more perfectly than the leaf. And the demand for nutrients such as nitrogen, phosphorus and potassium will be greater, so foliar fertilizer needs to be sprayed at least ten times to reach the total amount of nutrients absorbed by the root. Therefore, spraying foliar fertilizer can not completely replace root fertilization, so we must pay attention to spraying foliar fertilizer in combination with root fertilization.

4. Spraying position

Finally, when spraying foliar fertilizer, we should also pay attention to the spraying of foliar fertilizer. With different crops, the growth ability of the upper, middle and lower parts of the plant is different, and the growth center of gravity is also different. And because the upper, middle and lower leaves and stems of the plant, their metabolic activities are not consistent. Therefore, there is a big difference in the ability to absorb nutrients. Therefore, we need to choose the appropriate spraying site according to the planted crops to improve the absorption and utilization of foliar fertilizer and ensure the nutritional requirements of crops.

The above is a brief introduction to the matters needing attention in foliar fertilizer spraying. That's all for today's introduction. This article is for reference only. I hope it can help you all.