Relevance. The Volgograd region is one of the major producing regions of table carrots with a difficult climate, therefore, regional adaptation of technology parameters and optimization of reclamation regimes under drip irrigation is necessary. According to most researchers, it is important to take into account the weak development of the root system of carrots in the initial periods of plant growth and development, so the differentiation of the moistened soil layer will allow more rational and productive use of soil moisture.Materials and methods. The working hypothesis of the studies was the assumption that it is possible to intensify the production process of carrots when managing water and mineral nutrition by drip irrigation against the background of high-quality soil preparation with the formation of ridges and the use of modern sowing units. In accordance with the hypothesis put forward, the research program is based on the assessment of threshold values of the conditions for the appointment of vegetation irrigation with drip irrigation and doses of mineral fertilizers.Results. The determination coefficient of the estimated dependences of the carrot water consumption coefficient on the duration of maintaining the starting irrigation regime and mineral nutrition conditions is 0.87-0.94, which characterizes a strong relationship between the indicators included in the equation. it was beneficial for Cordoba F1 hydride to maintain the starting regime of carrot irrigation, oriented to moisten the calculated 0.2-soil layer, to the stage of formation of the 2nd leaf, as well as to apply mineral fertilizers with a dose of N240P90K315 of the planned yield level, 120 t/ha was not received. The productivity of other hybrids studied in the experiment did not exceed 100 t/ha; therefore, it is advisable to introduce mineral fertilizers with a dose of N190P75K245, calculated specifically for this level of planned yield.
The use of a drip irrigation system allows the most efficient use of irrigation water, since it is delivered directly to the root space. In recent years, the production of drip tape at domestic enterprises has significantly increased by introducing additional capacities at existing plants and commissioning new production facilities, which will halve the import of drip tape and related equipment and fittings. However, the share of lands occupied by drip irrigation among the territories using irrigation measures has practically not increased and amounts to 2-4 %. The design of drip irrigation systems, taking into account the peculiarities of the growing season of a particular agricultural crop, its dynamics of water consumption throughout the life cycle, and the planting scheme, will help to change the situation and expand the use of drip irrigation. One of the limiting factors is the low degree of mechanization when laying the drip tape. The use of handicraft devices for these purposes leads to an uneven tension of the tape and, as a consequence, its breakage and twisting during the laying process. To eliminate this drawback, the working equipment for laying the drip tape into the potato comb was developed and installed on the Grimme GF-75/4 comb shaper. Traction resistance increased by 6-8 %, without affecting the performance of the machine. During the tests, a brake system was installed that maintains the belt tension within acceptable limits and prevents the coil from spinning when the machine stops suddenly. The use of a drip tape stacker based on the Grimme GF-75/4 ridge former has increased the productivity of work by 32–36 %.
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