N. N. Shapovalova, E. A. Men’kina, A. A. Voropaeva, D. A. Akhmedshina
{"title":"Effect of the Aftereffect of Long-Term Use of Mineral Fertilizers on Yield and Quality of Sunflower Seeds in the Conditions of the Stavropol Territory","authors":"N. N. Shapovalova, E. A. Men’kina, A. A. Voropaeva, D. A. Akhmedshina","doi":"10.3103/s1068367423090161","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The research aimed to study the effect of various doses of hydrogel on the yield of cultivated crops in ordinary chernozems. The work was carried out in 2012–2021 under the conditions of the Central Ciscaucasia. In the link of crop rotation (green manure fallow –winter wheat–winter wheat) with various methods of basic tillage (mouldboard ploughing, surface tillage—disking) of the soil, the effect of hydrogel (100–400 kg/ha) was determined on a fertilized background and without fertilizers. The optimal dose of hydrogel for the annual application of N<sub>60</sub>P<sub>60</sub>K<sub>60</sub> was 400 kg/ha. For nine years, it provided a total increase in the yield of conditional grain, depending on the method of cultivation, 12.58–13.50 t/ha, a conditional net income of 64 196–70 866 rubles/ha, with a profitability of 107–118%. The use of hydrogel in its pure form (without fertilizers) is not economically justified. At the same time, it significantly increases the efficiency of mineral fertilizers: the net income for the period of research varied from 52 498 (surface tillage) and 65 506 rubles/ha (moldboard ploughing) when applying 100 kg/ha of the polymer to 120 542–143 405 rubles/ha in the variant with a dose of 400 kg/ha. The profitability of fertilizers at an increasing dose of hydrogel 100–400 kg/ha with traditional ploughing increased from 100 to 220%, with surface tillage from 80 to 185%. The total conditional net income from the increase in the amount of applied hydrogel and mineral fertilizers against the background of moldboard ploughing increased from 50 775 to 135 721 rubles/ha, the level of profitability varied within 63–108%. When disking, the profitability was 1.4–2.3 times less.</p>","PeriodicalId":21531,"journal":{"name":"Russian Agricultural Sciences","volume":"117 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Agricultural Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3103/s1068367423090161","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The research aimed to study the effect of various doses of hydrogel on the yield of cultivated crops in ordinary chernozems. The work was carried out in 2012–2021 under the conditions of the Central Ciscaucasia. In the link of crop rotation (green manure fallow –winter wheat–winter wheat) with various methods of basic tillage (mouldboard ploughing, surface tillage—disking) of the soil, the effect of hydrogel (100–400 kg/ha) was determined on a fertilized background and without fertilizers. The optimal dose of hydrogel for the annual application of N60P60K60 was 400 kg/ha. For nine years, it provided a total increase in the yield of conditional grain, depending on the method of cultivation, 12.58–13.50 t/ha, a conditional net income of 64 196–70 866 rubles/ha, with a profitability of 107–118%. The use of hydrogel in its pure form (without fertilizers) is not economically justified. At the same time, it significantly increases the efficiency of mineral fertilizers: the net income for the period of research varied from 52 498 (surface tillage) and 65 506 rubles/ha (moldboard ploughing) when applying 100 kg/ha of the polymer to 120 542–143 405 rubles/ha in the variant with a dose of 400 kg/ha. The profitability of fertilizers at an increasing dose of hydrogel 100–400 kg/ha with traditional ploughing increased from 100 to 220%, with surface tillage from 80 to 185%. The total conditional net income from the increase in the amount of applied hydrogel and mineral fertilizers against the background of moldboard ploughing increased from 50 775 to 135 721 rubles/ha, the level of profitability varied within 63–108%. When disking, the profitability was 1.4–2.3 times less.
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