The impact of onion cultivation at irrigation on the productivity of spring barley in the system of dry farming in the North-Western Pre-Caspian
| Autor: | O. V. Kalmykova, Yury Nikolaevich Petrov, Viktor Bisengalievich Narushev, Natalya Ivanovna Matveeva, E.V. Kalmykova |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | The Agrarian Scientific Journal. :19-26 |
| ISSN: | 2587-9944 2313-8432 |
| DOI: | 10.28983/asj.y2019i6pp19-26 |
| Popis: | They are given technological schemes for the rational development of the agricultural lands of the periodic irrigation of the North-Western Pre-Caspian. Experimental studies were carried out to study the water and physical properties of periodically irrigated light chestnut soils in the system of dry farming in the North-Western Pre-Caspian. Observations, accounting and economic calculations were carried out in accordance with generally accepted methods. During all the years of research, barley yields on periodically irrigated plots, regardless of the meteorological conditions of the growing season, were higher than the corresponding indicators on rainfed plots by 1,5...3,0 times. The average yield of barley grain was 2.43 t / ha - after onion, 0.91 t / ha –after autumn ploughing. Crops after onions with drip irrigation were distinguished by high profitability - from 57.5 to 173.4% (on average – 129.5%), whereas, crops on dry-farming land were unprofitable from eight years in three because of the dry conditions of the vegetation period. The developed technology of periodic irrigation in conjunction with climatic factors and soil conditions of the North-Western Pre-Caspian, as well as the technical means of its implementation, makes it possible to significantly reduce the degradation processes of the irrigated soils of the region and reduce the cost of producing spring grain crops. |
| Databáze: | OpenAIRE |
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