scholarly journals Drip irrigation of onions

2021 ◽  
Vol 843 (1) ◽  
pp. 012064
Author(s):  
V V Vybornov ◽  
V A Zaitsev

Abstract From 2017 to 2020, research was conducted in the Volgograd region in order to improve the efficiency of water and mineral nutrition management of onions by justifying the calculated layer of soil moisture and agrotechnical methods of cultivation on light chestnut soils to obtain 110 t/ha of marketable products. The main objectives of the research include the rationale for the formation of the water regime of the soil and drip irrigation regimes depending on the wetted soil, the study of patterns of growth, development and yield formation of onion depending on the studied factors, economic and environmental assessment of drip irrigation technology, the quality of the bulbs, depending on the studied factors. The field experience included the following options: water regime of the soil (factor A), mineral nutrition regime (factor B), promising onion hybrids (factor C).The studies were carried out on onion crops C1 – Migros F1; C2 – Dragon F1 ; C3 - Dammica F1. Against the background of the introduction of N180P80K70, the Migros F1 hybrid provides an average of 94.3 t/ha of onions in 3 years of research, which is 16.6 t/ha more in comparison with the Dragon F1 onion; and 2.2 t/ha more in the Dammica F1 hybrid.

Author(s):  
V.V. Vybornov

Представлены данные по площадям посева репчатого лука в мире, России и Волгоградской области. Наибольшие площади посева лука в России отмечены в Волгоградской области - 6,48 тыс. га. Цель исследований -повышение эффективности управления водным и минеральным питанием репчатого лука за счет обоснования расчетного слоя увлажнения почвы и агротехнических приемов возделывания на светло-каштановых почвах для получения 110 т/га товарной продукции. Полевой опыт включает следующие варианты: водный режим почвы (фактор А), режим минерального питания (фактор В), перспективные гибриды лука (фактор С). Исследования проводятся на посевах репчатого лука ВалероF1 МанасF1 ПандероF1 УниверсоF1 БлустерF1 СедонаF1.Data on the areas of onion sowing in the world, Russia and the Volgograd region are presented. The largest areas of onion sowing in Russia were recorded in the Volgograd region of 6.48 thousand ha. The aim of the research is to increase the efficiency of water and mineral nutrition management of onions by substantiating the calculated soil moisture layer and agrotechnical methods of cultivation on light chestnut soils to obtain 110 t / ha of commercial products. Field experience includes the following options: soil water regime (factor A), mineral nutrition regime (factor B), promising onion hybrids (factor C). Research is conducted on onions onion Valero F1 Manas F1 Pandero F1 Universo F1 Bluster F1 Sedona F1.


2014 ◽  
Vol 14 (5) ◽  
pp. 841-849 ◽  
Author(s):  
Ye. V. Angold ◽  
V. A. Zharkov

Irrigation techniques and technology based on principle of regular accumulation of moisture in active layer (surface irrigation, regular sprinkler irrigation) are most common in science and in practice. More progressive is principle of non-stop water supply of plants and soil in conformity to their water consumption. Drip irrigation and impulse sprinkling are based on this principle. The main advantage of drip irrigation is establishment of optimal water and nutritive regime directly in the plant root system. However, such irrigation is not effective enough under conditions of high air temperatures (over 25–35 °С), as growing process of several agricultural plants is known to slow down at 30–35 °С and photosynthesis, consequently, stops, which, in turn, affects plants yielding capacity. Sprinkling irrigation provides improvement of both microclimate in plant's environment and their water regime. Combination of drip and sprinkling irrigation permits the positive characteristics of each individual technology to be united, and to remove a series of disadvantages of their separate use as well as to use drip-sprinkler irrigation technology to create optimal conditions for plant development. Drip-sprinkler irrigation technology facilitates saving of irrigation water through drip irrigation in the main vegetation period and through improvement of microclimate and water regime of agricultural plants with additional sprinkling irrigation within the period of high temperatures and low air humidity that affects the growing process and increases yielding capacity of grown cultures.


2021 ◽  
Vol 282 ◽  
pp. 05001
Author(s):  
Evgeny Khodiakov ◽  
Askar Akhmedov ◽  
Evgeny Borovoy ◽  
Sergey Milovanov ◽  
Kirill Bondarenko

Long-term researches on the cultivation of vegetable crops with different methods of irrigation in the Volgograd region have shown that their yield was primarily closely related to the improvement of the water regime of the soil. Its efficiency using drip irrigation increased with the introduction of mineral fertilizers, and using subsurface irrigation - with an improvement of the location of the irrigation network. The highest yield of beet with drip irrigation (82.4 t / ha) was obtained with an increase of the Soil Pre-Irrigation Moisture (SPIM) to 85% of Full Moisture Capacity (FMC) and fertilization doses - to N235P140K130 kg/ha. The highest yield of courgettes with drip irrigation of 83.7 t / ha was obtained while maintaining the similar irrigation regime and the quantity of fertilizers N240P99K110 kg/ha.The maximum cabbage yield in our experience with drip irrigation of 83.1 t / ha was achieved using the option that combines the maintenance of the irrigation regime 80-90-80 %FMC with the application of fertilizers at doses of N110P50K140 kg / ha. The highest yield of radish with subsurface irrigation of 79.8 t / ha was obtained while maintaining SPIM 85 % FMC in the field with the location of subsurface humidifiers at a distance of 1.2 m from each other.


2019 ◽  
pp. 29-37
Author(s):  
Natalya Ivanovna Matveeva ◽  
Elena Vladimirovna Kalmykova ◽  
Yuriy Nikolaevich Petrov ◽  
Vladimir Vyacheslavovich Zvolinsky ◽  
Viktor Bisengalievich Narushev

The results of many years of research on the development of elements of onion cultivation technology with drip irrigation, providing optimal control of water and food regimes for obtaining high yields are presented. A comprehensive assessment of the main crop-forming factors and elements of the technology of onion cultivation with drip irrigation in the Astrakhan region is given. The best time for sowing, regardless of the variety is the II decade of April. The total yield of onions varied on average over three years, depending on the variety, from 90 to 180 t / ha. Of the forms of fertilizers and methods of their application, the most effective fertilizer we considered was 3 (option 3: autumn application of ammophos (400 kg / ha) + 30 kg / ha of sulfoammophos in the seedbed + N200P200K300 during the growing season) and fertilizer 4 (in autumn for plowing 400 kg of ammophos + 30 kg / ha of sulfoammophos in presowing application + 300 kg / ha of ammonium nitrate during the growing season). Irrigation in the Astrakhan region is the main condition for obtaining turnip onions. Proper irrigation contributes to higher yields. In our study of varieties only for the Pandero F1 hybrid, the best was higher and differentiated irrigation: the yield was 187 and 164 t / ha, respectively, according to irrigation regimes. For other varieties, the best irrigation regime was increased, i.e. during the growing season until the leaves lodging 80 ... 85% HB.


2020 ◽  
pp. 51-56
Author(s):  
B. M. Kizyaev ◽  
V. V. Borodychev ◽  
A. A. Martynova

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.


Author(s):  
Rumiana Kireva ◽  
Roumen Gadjev

The deficit of the irrigation water requires irrigation technologies with more efficient water use. For cucumbers, the most suitable is the drip irrigation technology. For establishing of the appropriate irrigation schedule of cucumbers under the soil and climate conditions in the village of Chelopechene, near Sofia city, the researchеs was conducted with drip irrigation technology, adopting varying irrigation schedules and hydraulic regimes - from fully meeting the daily crops water requirements cucumbers to reduced depths with 20% and 40%. It have been established irrigation schedule with adequate pressure flows in the water source, irrigation water productivity and yields of in plastic unheated greenhouses of the Sofia plant.


2018 ◽  
Author(s):  
V.A. Borisov ◽  
I.Yu. Vasjuchkov ◽  
A.A. Kolomiets ◽  
O.N. Uspenskaya ◽  
A.V. Kornev

Установлено, что на пойменных почвах использование методов диагностики минерального питания растений моркови «по почве» и «по черешку» в фазу начала образования корнеплодов позволяет значительно (на 36–42%) снизить расход минеральных удобрений, обеспечивая урожайность моркови на уровне 70 т/га с долей стандартной продукции 78–81% без существенного изменения качества корнеплодов.It was found that in floodplain soils, the use of methods of diagnosis of mineral nutrition of carrot plants «on the soil» and «on the petiole» in the phase of the beginning of the formation of root crops can significantly (by 36–42%) reduce the consumption of mineral fertilizers, ensuring the yield of carrots at the level of 70 t/ha with a share of standard production of 78–81% without significantly changing the quality of root crops.


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