In winter and spring, the use of biological fungi not only activates the nutrients that are fixed in the soil, but also facilitates the growth of roots, but it should not be used blindly. It should be determined according to the soil environment of different greenhouses, otherwise it will probably cost money. But we can't get any results. Today, let's take a look at the techniques of winter bacterial fertilizer application.
Winter and spring low temperature period fertilizer use technology:
Soil moisture: If the soil moisture content is too large or insufficient, it will affect the application effect of biological fertilizer. Because most of the biological bacteria in the biological fertilizer are aerobic bacteria, it is active when the soil sees dryness and wetness. Therefore, after applying biological bacterial fertilizer, we must pay attention to reasonable watering. It is best to choose small water in the morning on sunny days, so that not only can the ground temperature be increased, but also the air can be drained. Pay attention to the best way to water after watering, in order to increase soil permeability, which is conducive to the effect of biological bacteria.
Soil temperature: The biological bacteria in the biological fertilizer generally have the most active life activity when the soil is between 18 °C and 25 °C. When the temperature is below 15 °C, the life activity begins to decrease. When the temperature is below 10 °C, the activity capacity is very weak, even in a dormant state. Therefore, after applying the fertilizer to the greenhouse vegetables in the winter and spring seasons, it is necessary to pay attention to the regulation of the ground temperature. First, control the temperature in the shed, and use the temperature to promote the temperature rise.
Soil pH: Soil acid or alkali is not conducive to the growth and reproduction of biological bacteria. When the soil pH is between 6.5 and 7.5, it is most suitable for the reproduction of biological bacteria. The vegetable farmers can be modified according to the soil conditions, so that the soil pH value reaches 6.5-7.5, ensuring the large-scale reproduction of the biological bacteria.
Adding organic fertilizer: After applying biological fertilizer, pay attention to adding organic fertilizer. Because the bacteria can only exert their effects under the premise that the soil is rich in organic matter. Therefore, vegetables must be paid attention to the application of organic fertilizer before planting, generally about 5000 kg per acre.
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