Energy dose of sunflower seed treatment in a magnetic field
DOI:
https://doi.org/10.31548/energiya2021.02.017Abstract
Abstract. Pre-sowing treatment of sunflower seeds in a magnetic field makes it possible to improve the sowing quality of seeds and increase the yield of sunflower without the use of mineral fertilizers and chemical plant protection products.
Compared to other electrophysical methods, pre-sowing treatment of seeds in a magnetic field is a highly productive, energy-consuming, safe method for operating personnel and the environment.
It has now been established that the yield and biometric indicators of agricultural crops depend on the dose of magnetic treatment.
Therefore, the aim of the study was to determine the optimal energy dose for processing sunflower seeds in a magnetic field.
An analytical expression has been obtained for determining the energy dose of sunflower seed treatment in a magnetic field. It contains all the operating parameters of seed treatment in a magnetic field. It has been established that the energy dose of sunflower seeds treatment in a magnetic field depends in direct proportion to the square of the magnetic induction and pole division and inversely to the speed of the seeds in the magnetic field.
The carried out multifactorial experiment made it possible to determine the sunflower seeds germination energy and germination at various energy doses of treatment. This made it possible to determine the optimal mode of sunflower seeds treatment in a magnetic field.
It was found that the optimal mode of pre-sowing treatment of sunflower seeds in a magnetic field is a magnetic induction of 0.065 T, four-fold re-magnetization, pole division 0.23 m, a seed velocity of 0.4 m/s, providing an energy treatment of 3.8 J‧s/kg. With the optimal treatment of sunflower seeds in a magnetic field, the germination energy increased by 28 %, the germination – by 24 %, and the yield – by 26 %.
Key words: sunflower, pre-sowing treatment, magnetic field, magnetic induction, pole division, velocity of seed movement, energy dose of treatment
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