Benefits of extra-root topdressing of fruit trees

Topdressing is essential when we plant fruit trees. Reasonable topdressing is to meet the nutritional needs of the growth and development of fruit trees, and the topdressing methods of fruit trees are divided into many kinds. For example, ditch application, strip application and so on. One of the more special is extra-root topdressing, which is spraying foliar fertilizer, which is very beneficial to the growth of fruit trees. So what are the benefits of topdressing fruit trees beyond their roots? Let's take a look at it with the editor.

1. Direct absorption

The main fertilization method of extra-root topdressing is to apply foliar fertilizer, because the leaf growth ability of most fruit trees is relatively strong. If foliar fertilizer is applied, the leaves can absorb nutrients directly. Then provide nutrition for the plant and transport it directly to all growth parts of the plant. It can also enhance the growth ability of leaves, improve the photosynthesis of leaves, and increase the accumulation of photosynthetic matter in plants. If it is topdressing in the root, then there may be the phenomenon that the fertilizer is fixed in the soil, which reduces the conversion rate of fertilizer and leads to the decline of fertilizer efficiency.

2. Enhance fertilizer efficiency

The absorptive capacity of the roots of some fruit trees is relatively weak, if only fertilizing in the roots. So for those fruit trees with weak root absorptive capacity, not only the conversion rate is very low, but also consume too much fertilizer and increase planting costs. Therefore, for these crops, the reasonable application of foliar fertilizer can effectively increase the fertilizer efficiency, improve the fertilizer conversion rate, promote flowering and fruit, and ensure planting efficiency. And a reasonable increase in the proportion of phosphorus and potassium fertilizer in foliar fertilizer will have an obvious effect on increasing production.

3. Leaf transformation is fast.

The leaf not only has a strong ability to absorb nutrients, but also the transformation of fertilizer is much higher than that of the root. To be able to meet the nutritional needs of fruit trees in time, for example, when we apply calcium fertilizer to the roots, the transformation time is about 5 days. However, if the foliar fertilizer containing calcium is applied to the leaves, then the transformation time will only take about two days. Therefore, for some fruit trees or other crops with element deficiency, foliar fertilizer can supplement the lack of nutrition in fruit trees as soon as possible and promote the growth of fruit trees.

4. Mechanization

Compared with root topdressing, extra-root topdressing is more convenient to operate, can be mechanized, economical and effective. When topdressing outside the root, the amount of fertilizer used is generally only about 1 × 10 of the amount of topdressing at the root. Moreover, foliar fertilizer and water-soluble fertilizer can be mixed with some pesticides, which not only provides nutrition for the plant, but also enhances the disease resistance of the plant. And the efficiency of mechanized fertilization is good, and the overall cost is relatively small. It is suitable not only for fruit trees, but also for tea, vegetables and so on.

The above is a brief introduction to the benefits of extra-root topdressing of fruit trees. Although there are many benefits of extra-root topdressing of fruit trees, we can not all use the method of extra-root topdressing. It should be combined with topdressing in the root in order to ensure that the growth and nutrition of fruit trees is adequate and comprehensive. This is the end of today's introduction, this article is for reference only, I hope it can be helpful to everyone!