At the moment, a new technique is often used in the technology of potato production and that is pre-treatment of seed material, which is done with the help of chemical, biological and physical methods in complex. Stimulation of plants in the initial period of the growing season requires a special approach. On the one hand, plants need nutrients and, on the other hand, they do not have a developed root system for their production. Therefore, foliar treatment of plants with protective stimulating preparations is an alternative to fertilizer application. Potassium mobilizing bacteria are able to mobilize potassium present in the soil in the root zone of plants. Liquid fertilizers based on humic acids are natural immunomodulators and stimulators of the formation, growth and development of plants, as well as antidepressants and complex nutrition additive. They are suitable for organic farming. Potato seedes were treated with hot fog of protective stimulants at temperatures from 40° C to 60° C immediately before planting. As a result of the studies, the effects of protective-stimulating preparations on plant biometry during the growing season (accumulation of aerial mass) and yield were studied. Hot fog treatment of potato seed tubers with POTASSIUM HUMATE and AZOTOVIT preparations showed the best dynamics of increasing the height of shoots of potato bushes, which exceeded the control by 5.3% and 8.2%. Pre-treatment of potato seed tubers with hot fog of protective-stimulating preparations is an effective method of increasing productivity and it contributes to better products.
The goal of the research was the theoretical justification and practical implementation of the device for improving the separation of potato impurities with the help of a transverse rotary agitator of a potato digger. The proposed technical solution is simple to construct, and when used, the technological process of soil separation is improved, not only on light soils, but also on heavy waterlogged soils.
Combined feeds form the basis of the ration in pig breeding (up to 70% of the diet) and poultry farming (up to 90% of the diet) and serve as complementary feed in other branches of livestock and poultry farming. At the moment, there is a task to increase the shelf life of compound feed while maintaining their quality and nutritional value. The article discusses various ways of storing and preparing compound feed.
To optimize energy costs during the cutting process, a mathematical model is constructed and the calculation results are studied to optimize the cutting process. The proposed model is built for the operation of the rotor of the haulm shredder, but the technique of its construction can be used for any systems in which rotational movements are used to cut plants. A method for constructing a rotation model of the haulm shredder rotor with respect to two centers of rotation is presented. The method is based on the solution of differential equations of motion, the theorem on the center of mass of the system and the energy conservation law. To obtain an analytical expression, differential equations were solved that related the deviation of the cutting element of the haulm shredder from a radial position. Modeling showed that in the operating mode, at an angular velocity co of rotor rotation of more than 100 rad s1, the dependence is almost linear and can be replaced by the formula in the characteristic mass range of rotating knives 0.7-1.5 kg in relation to T ∼ 0.6-0.001co.
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