Drip Irrigation Technology: Principles, Design, and Evaluation

2020 ◽  
pp. 275-303
Author(s):  
Mostafa Fayed
Keyword(s):  
Drip Irrigation ◽  
Irrigation Technology

IRRIGATION SCHEDULE OF LONG-FRUIT CUCUMBERS AND HYDROAMELIORATIVE REQUIREMENTS FOR DRIP IRRIGATION IN PLASTIC GREENHOUSE

2019 ◽  
pp. 307-313
Author(s):  
Rumiana Kireva ◽  
Roumen Gadjev
Keyword(s):  
Irrigation Water ◽  
Drip Irrigation ◽  
Water Productivity ◽  
Irrigation Schedule ◽  
Water Source ◽  
Climate Conditions ◽  
Irrigation Technology ◽  
Irrigation Technologies ◽  
Pressure Flows ◽  
Efficient Water Use

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.

Special features of drip-sprinkler irrigation technology

2014 ◽  
Vol 14 (5) ◽  
pp. 841-849 ◽  
Author(s):  
Ye. V. Angold ◽  
V. A. Zharkov
Keyword(s):  
Drip Irrigation ◽  
Water Regime ◽  
Plant Root ◽  
Sprinkler Irrigation ◽  
Vegetation Period ◽  
Yielding Capacity ◽  
Irrigation Technology ◽  
Air Temperatures ◽  
Agricultural Plants ◽  
Plant Root System

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.

Modeling the effect of flood and drip irrigation on groundwater recharge

2020 ◽  
Author(s):  
Sandra Pool ◽  
Félix Francés ◽  
Alberto Garcia-Prats ◽  
Cristina Puertes ◽  
Manuel Pulido-Velázquez ◽  
...  
Keyword(s):  
Water Balance ◽  
Groundwater Recharge ◽  
Drip Irrigation ◽  
Hydrological Model ◽  
Agricultural Area ◽  
Annual Rainfall ◽  
Irrigated Agriculture ◽  
Irrigation Technology ◽  
Simulation Results ◽  
Irrigation Modernization

<p>Irrigation modernization, here defined as the replacement of traditional flood irrigation systems by pressurized drip-irrigation technology, has been widely promoted with the aim to move towards a more sustainable use of freshwater resources in irrigated agriculture. However, the scale sensitivity of irrigation efficiency challenged the predominantly positive value attributed to irrigation modernization and asked for an integrated evaluation of the technological change at various scales. The aim of this study is therefore to contribute to an improved understanding of the hydrological functioning in a landscape under irrigation modernization. We used local field observations to propose a regional scale modeling approach that allowed to specifically simulate the difference in water balance as a function of irrigation method and crop type. The approach focused on the modification of the spatial input data and had therefore the benefit of being relatively independent of the final choice of the hydrological model. We applied the proposed approach to the semi-arid agricultural area of Valencia (Spain), where regional information about the use of irrigation technologies and irrigation volumes at farm level were available. The distributed hydrological model Tetis was chosen to simulate the daily water balance from 1994 to 2015 for an area of 913 km<sup>2</sup> at a spatial resolution of 200 m. Model simulations were based on a random selection of parameter values that were subsequently evaluated in a multi-objective calibration framework. Multiple process scales were addressed within the framework by considering the annual evaporative index, monthly groundwater level dynamics, and daily soil moisture dynamics for evaluation. Simulation results were finally analyzed with a focus on groundwater recharge, which is of particular interest for environmental challenges faced within the study area. Simulation results of groundwater recharge for the entire agricultural area indicated a considerable variability in annual recharge (values from 112 mm up to 337 mm), whereby recharge was strongly controlled by annual rainfall volumes. Annual recharge in flood-irrigated areas tended to exceed annual recharge in drip irrigated-areas except for years with above average rainfall volumes. The observed rainfall dependency could be explained by the fact that recharge in drip-irrigated areas almost exclusively occurred during rainy days, whereby a few heavy rainfall events could produce the majority of annual recharge. Our results indicated interesting differences but also commonalities in groundwater recharge for flood and drip irrigation, and therefore emphasized the importance of explicitly considering irrigation technology when modelling irrigated agricultural areas.</p>

DRIP IRRIGATION TECHNOLOGY TRANSFER FOR THE GREENHOUSE INDUSTRY IN ALMERIA (SPAIN)

1993 ◽  
pp. 563-568
Author(s):  
J. López-Gálvez ◽  
N. Castilla ◽  
F. Orgaz ◽  
E. Fereres
Keyword(s):  
Technology Transfer ◽  
Drip Irrigation ◽  
Irrigation Technology

scholarly journals Drip irrigation of onions

2021 ◽  
Vol 843 (1) ◽  
pp. 012064
Author(s):  
V V Vybornov ◽  
V A Zaitsev
Keyword(s):  
Mineral Nutrition ◽  
Drip Irrigation ◽  
Water Regime ◽  
F1 Hybrid ◽  
Nutrition Management ◽  
Irrigation Technology ◽  
Volgograd Region ◽  
Factor C ◽  
Yield Formation

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.

scholarly journals Knowledge level of drip irrigation farmers about drip irrigation technology

2020 ◽  
Vol 15 (4) ◽  
pp. 311-314
Author(s):  
Sushma Sahu ◽  
D.K. Surywanshi ◽  
M.A. Khan ◽  
Bhedu Prasad Sahu
Keyword(s):  
High Risk ◽  
Data Collection ◽  
Drip Irrigation ◽  
Knowledge Level ◽  
Personal Interview ◽  
Statistical Tools ◽  
Interview Schedule ◽  
Irrigation Technology ◽  
Level Of Knowledge ◽  
High Level

The present study was carried out during 2013 in the Durg district of Chhattisgarh state. This study was conducted in randomly selected 8 villages of two purposively selected blocks i.e. Durg and Dhamdha located in Durg district. The aim of this study was to assess the risk orientation and level of knowledge of drip irrigation farmers about drip irrigation technology. A total of 128 respondents including 64 drip irrigation farmers and 64 non-drip irrigation farmers were selected randomly. The data collection was done by the use of interview schedule through personal interview. Data were analyzed with help of suitable statistical tools. The findings revealed that majority of the respondents had high risk bearing capability and having high level of knowledge about equipments fitted in DIS. Majority of the DIF were having high level of knowledge regarding drip irrigation technology.

scholarly journals Initial results of watering plants via sub-irrigation technology

2021 ◽  
Vol 264 ◽  
pp. 03056
Author(s):  
Safo Vafoev ◽  
Ilkhomjon Turdibekov ◽  
Rustam Vafoev ◽  
Ozoda Vafoeva
Keyword(s):  
Drip Irrigation ◽  
Crop Yields ◽  
Sprinkler Irrigation ◽  
Soil Salinization ◽  
Agricultural Crops ◽  
Irrigation Technology ◽  
Processing Plants ◽  
Traditional Irrigation ◽  
The Stability ◽  
The Cost

In this developing world, saving water is the main problem for agricultural sciences. So, in this field, scientists are using many methods to save water-for instance, traditional irrigation, drip irrigation, sprinkler irrigation, sub-irrigation, and others. Solving irrigation and the problems in this article demonstrated the sub-irrigation method for agriculture plants in the Uzbekistan regions. According to watering theory in the field condition and compared to drip irrigation in the region, scientifically experiment was done. According to the results of the study, this method will automate the stability of soil moisture in the irrigation of agricultural crops: save 4 … 5 times water and prevent soil salinization; the cost of processing plants and fuels and lubricants with the help of technical means is sharply reduced; land use coefficient increases; hardening of crop rows and the number of their processing is sharply reduced; it is guaranteed to increase crop yields by mixing the juice with water; environmental pollution and soil salinity are sharply reduced. In the case of drip irrigation of agricultural crops, flexible plastic pipes with a diameter of 16… 20 mm are laid on the soil near the crop stalks, from which water holes or cracks are formed at certain intervals, from which water drips and irrigates crops. It is also possible to mix the juice of chemical and local fertilizers with water.

REGULATION OF THE HYDROTHERMAL REGIME OF EARLY POTATO PLANTINGS

1970 ◽  
pp. 30-33
Author(s):  
V. K. Gubin ◽  
V. A. Shevchenko ◽  
L. V. Kudryavtseva
Keyword(s):  
Drip Irrigation ◽  
Ground Level ◽  
Mineral Elements ◽  
Drainage Water ◽  
Tuber Formation ◽  
Moisture Loss ◽  
Hydrothermal Regime ◽  
Irrigation Technology ◽  
Formation Zone ◽  
Intensive Condensation

The article deals within matters of the mineral elements removal with drainage water on reclaimed lands, on the Central Russian and Volga Uplands in an unstable hydrothermal regime. The reuse of drainage water for irrigation with the use of sprinkler and drip irrigation are assessed. Taking the example of drip irrigation is being considered the possibility of the most effective influence during the plant growing season on the hydrothermal regime of the soil and the ground-level pollution both in a dry year and in case of excessive rainfall. The features of drip irrigation technology with use of a mulching screen made of a membrane film with selective moisture permeability are described. The proposed method of drip irrigation of early varieties of potatoes due to more intensive condensation of water vapor on the inner layer of the screen allows to maintain a more stable daily soil temperature. The screen opaqueness inhibits the germination of weeds in wet row spacing, capillary humidification of the tuber formation zone in combination with the screen permeability for air prevent anaerobic processes in this part of the furrows and its overmoisturazing. The application of the proposed method of potato cultivation during drip irrigation provides the rational use of rainfall, increasing the uniformity of field moistening and reducing moisture loss, and also prevents the soil overwetting in the zone of tuber formation and provides aeration of the soil under the screen.

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