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Information × Registration Number 0219U004356, 0115U007238 , R & D reports Title Scientific substantiation of resource-saving technologies of growing the corn and the sugar corn on the irrigated lands, geoinformation support of environmentally sound use of water for irrigation and reclamation of irrigation alkalinization soil in the conditions of the northern Steppe of Ukraine popup.stage_title Head Onoprienko Dmitriy Michailovych, Registration Date 04-06-2019 Organization Dnipro State Agrarian and Economic University popup.description2 The research work was carried out in accordance with the individual plans of the scientific and pedagogical staff of the department of exploitation of hydromelioration systems and technology of construction and individual plans of work of graduate students and applicants. During the research work on the theme used the following methods: the theory - the study of the nature of physical processes in the areas of scientific research; hypothesis - acceptance of certain conditions at achievement of result in experiment, for example at refinement of schemes of field experiments; analysis and synthesis - the study of information and the creation of electronic databases in the direction of research for their further processing; mathematical statistics - processing of the results of field experiments to assess the suitability and accuracy of the proposed methodology. In the course of the research, the base of the PCA of the department of agricultural hydrotechnical melioration DSAEU, the agrochemical laboratories, experimental fields, fields in the farm of the Synelnikovo district were used. The practical application of the developed technology of corn irrigation will facilitate the introduction of science and technology, new technologies and best practices in the production of science and technology. In irrigated agriculture, it is necessary to introduce new effective agrotechnologies, which involve reducing the dose of mineral fertilizers and increasing their payback in 1,5-2 times due to optimization of terms and methods of introduction. When growing corn under intensive technology on irrigated lands, it is advisable to make nitrogen fertilizers with irrigation water in the following proportions: 40 % of the total dose in the period of 10-12 leaves, 40 % - in the phase of discharging vodka and 20 % in the phase of milk ripeness of the grain. For such use of nitrogen fertilizers, the average grain yield of corn increased by 2.72-4.36 t/ha than without fertilizer application. A tendency of increase in the content of protein in corn grain is noted during the introduction of nitrogen fertilizers with irrigation water. Application of high norms of mineral fertilizers and the fractional introduction of nitrogen fertilizers with irrigation water did not affect the content of nitrates in grain, did not degrade its qualitative indicators. For fertigation, up to 0.5-0.6 kg/ha of fuel is saved, and its consumption by 1 ton of corn grain yield is reduced by 8.5 % compared with the traditional spreading method of introduction. Growing corn sugar in a drip irrigation method is economically beneficial when harvesting at a level of 18 t/ha or more. Such productivity of the cabins provides irrigation with the introduction of the required amount of mineral fertilizers together with irrigation water at a rate of 25 kg d.r. per 1 ha for one entry. The results of the research show that the combination of irrigation with the introduction of mineral fertilizers is an effective way to save energy and material resources, increase the yield and quality of corn grain, protect the soil from degradation. Industrial studies were carried out in 2016-2018, when the yield of corn grain during irrigation increased by 6.91 t/ha, and for the introduction of urea together with irrigated water (fertigation) - by 7.63 t/ha, in comparison with the variant where fertilizers were not introduced at all. For fertigation, production costs per hectare with the same doses of mineral fertilizers and the same irrigation rates decreased by UAH 45.34, the total cost of 1 cent. Of products decreased by 4.14 UAH, the cost of grown products per 1 hectare decreased by 20.34 UAH. , while the conditionally net income from 1 hectare increased by 1714.14 UAH compared with the introduction of dry mineral fertilizers in a superficial way. The profitability level has increased from 191 % for the traditional way of applying nitrogen fertilizers to 198 % for fertigation. Product Description popup.authors Ківер Володимир Хомич Макарова Тетяна Костянтинівна Ткачук Андрій Васильович Хорешков Сергій Анатолієвич popup.nrat_date 2020-04-02 Close