Under what conditions permafrost feeding will be the most effective - expert advice

09/03/2023 09:37

The beginning of March was marked by a sharp warming in most regions of Ukraine. In winter, they need fertilizing by permafrost, but positive temperatures raise doubts among farmers about the possibility and expediency of applying fertilizers in this way.

This was told by Dr. S.-G. of Sciences, chief researcher of the Institute of Plant Breeding named after V.Ya. Yuryeva NAAS Serhiy Avramenko, writes SuperAgronom.com.

"The fact is that winter crops need fertilizers specifically for permafrost, because last year they entered the winter unrooted, in the phases of seedlings, stilts, 1-3 leaves. Such crops are the most in need of permafrost fertilization, or autumn fertilization," the specialist said.

According to him, permafrost feeding has its own difficulties.

"In particular, it is important to catch the time when the application of fertilizers is best absorbed, that is, so that it gets into the rhizosphere zone of plants. After all, if the fertilizer is distributed incorrectly, it flows through microcracks of the soil into lowlands, ravines and eventually ends up in wells," Serhiy Avramenko explained.

For example, in his video, the specialist showed a field where the soil had already thawed to a depth of 2-3 cm, which is enough for the applied fertilizers to enter the soil, be fixed and absorbed by the plant root system after the spring vegetation resumes. Therefore, permafrost fertilization should be done closer to the recovery of spring vegetation. But the problem is that it is currently difficult to enter such soil without compaction. Therefore, the specialist advises to take advantage of night and early morning frosts so that the soil freezes, and then you can apply.

"Follow the weather forecast for the next 2-3 days. As a rule, a three-day weather forecast is the most accurate. Ideal conditions are created when the soil freezes at night, and on the contrary, thaws during the day and the temperature rises to 5°C and above, which allows fertilizer to be better absorbed. Such a moment is difficult to catch, but it is possible," said Serhiy Avramenko.

The beginning of March was marked by a sharp warming in most regions of Ukraine. In winter, they need fertilizing by permafrost, but positive temperatures raise doubts among farmers about the possibility and expediency of applying fertilizers in this way.
This was told by Dr. S.-G. of Sciences, chief researcher of the Institute of Plant Breeding named after V.Ya. Yuryeva NAAS Serhiy Avramenko, writes SuperAgronom.com.
"The fact is that winter crops need fertilizers specifically for permafrost, because last year they entered the winter unrooted, in the phases of seedlings, stilts, 1-3 leaves. Such crops are the most in need of permafrost fertilization, or autumn fertilization," the specialist said.
According to him, permafrost feeding has its own difficulties.
"In particular, it is important to catch the time when the application of fertilizers is best absorbed, that is, so that it gets into the rhizosphere zone of plants. After all, if the fertilizer is distributed incorrectly, it flows through microcracks of the soil into lowlands, ravines and eventually ends up in wells," Serhiy Avramenko explained.
For example, in his video, the specialist showed a field where the soil had already thawed to a depth of 2-3 cm, which is enough for the applied fertilizers to enter the soil, be fixed and absorbed by the plant root system after the spring vegetation resumes. Therefore, permafrost fertilization should be done closer to the recovery of spring vegetation. But the problem is that it is currently difficult to enter such soil without compaction. Therefore, the specialist advises to take advantage of night and early morning frosts so that the soil freezes, and then you can apply.
"Follow the weather forecast for the next 2-3 days. As a rule, a three-day weather forecast is the most accurate. Ideal conditions are created when the soil freezes at night, and on the contrary, thaws during the day and the temperature rises to 5°C and above, which allows fertilizer to be better absorbed. Such a moment is difficult to catch, but it is possible," said Serhiy Avramenko.
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