In the peak period of root growth, in order to make fruit trees grow better and increase the yield and quality of fruit trees, farmers need to pay attention to the basal fertilizer of fruit trees-potassium fulvic acid.

In order to better fertilize fruit trees, it is necessary to understand the needs of water and fertilizer when the fruit trees grow, and to supplement the nutrients needed by the fruit trees in time. The following is a detailed introduction of the use of fruit tree base fertilizer.

The growth characteristics of fruit trees.

Fertilize the roots of fruit trees in time in autumn. At this time, the root system of the fruit tree has a strong absorption capacity, and if it is injured, it is easy to heal by fertilization. Cut off some fine roots to make wounds heal faster and promote the development of new roots of fruit trees.

Applying basal fertilizer to fruit trees at this time can also loosen orchard soil, increase soil porosity, improve the state of fertilizer, water, air, and heat in orchard soil, facilitate the activity of microorganisms in the soil, and provide time and conditions for the decomposition and transformation of basal fertilizer.

Applying basal fertilizer to fruit trees in time can also provide nutrients to the roots of the fruit trees in a timely manner, so that the roots can be better absorbed and utilized, increase the ground temperature of the orchard, and prevent freezing damage. After being decomposed in autumn and winter, fruit trees can absorb some nutrients and increase the nutrient accumulation of fruit trees.

2. Key points of using potassium fulvic acid as a base fertilizer for fruit trees.

When using base fertilizer for fruit trees, it should be adjusted in time according to the condition of the tree. For deciduous fruit trees, applying base fertilizer in autumn is more suitable, mainly because the climate is mild after autumn, temperature, humidity, and light are more suitable for plant growth, and photosynthetic efficiency is high. Fertilization at this time is conducive to nutrient accumulation, and the fertilizer efficiency is higher.

After autumn, especially after the fruit trees are picked, the fruit trees will enter the stage of nutrient accumulation. If root fertility is supplemented at this stage, leaf senescence can be delayed, leaf photosynthetic capacity can be improved, and fruit nutrient reserves can be increased.

Mineral potassium fulvic acid is a nutrient rich in humic acid and organic matter. As a base fertilizer for fruit trees, black gold crystal can be applied to help the growth of fruit tree roots, so that fruit trees can better increase production and quality, maintain fruit tree roots, and promote fruit tree roots growth.

For evergreen fruit trees, the application time of base fertilizer should be more flexible. Taking citrus as an example, many farmers have applied autumn fertilizer, winter fertilizer, and batch application, and it is better to put middle and late citrus varieties as base fertilizer for autumn shoots.