Local Irrigation Research Articles

Case Study of Inheritance and Reorganization of Local Irrigation Water Management with ICT

Case Study of Inheritance and Reorganization of Local Irrigation Water Management with ICT

К вопросу о течении послеоперационного периода у пациентов с вазомоторным ринитом при применении топических стероидов в ходе предоперационной подготовки

The obstruction of nasal breathing due to vasomotor rhinitis is quite a common cause of visits to the ENT doctor. Today, it is believed that therapeutic measures should begin with the identification of possible causes that result in the formation of nasal hyperreactivity, and the treatment of the underlying disease. Medical treatment of vasomotor rhinitis can begin with the prescription of topical corticosteroids and antihistamines. The long-term observations have shown that the use of decongestants and topical steroids in the preoperative period reduces reactive phenomena in the nasal cavity after surgical treatment. To objectify the empirical observations, the authors have examined 20 patients after surgical intervention for vasomotor rhinitis in the scope of submucosal vasotomy. In the postoperative period, the patients were recommended regiminal and restrictive measures, and prescribed antihistamines and local irrigation therapy with warm saline. The authors assessed the transport function of the nasal cavity mucous membrane by the study of mucociliary transport rate in the test with coal dust and the respiratory function of the nasal cavity by the volumetric flow rate using anterior active rhinomanometry. The study revealed that the use of decongestants and topical steroids in the preoperative period reduces the reactive events in the postoperative period and shortens the patient’s rehabilitation period.

Modernization of irrigation systems in France: what potential water savings at plot level?

What is the real potential for water savings at plot level resulting from the change of irrigation equipment or the adoption of management tools in a given context? To answer this question, the authors of this article have compiled more than ninety-three references of experimental water consumption trials representative of a wide range of of soil and climate conditions and crops in metropolitan France. Their results show that the water savings potentially achievable by switching from sprinkling to a localised irrigation system are limited, if not impossible, in very dry years. On the contrary, irrigation control using soil water status sensors allows water savings that are less dependent on climatic conditions.

Economic analysis of photovoltaic energy in irrigating lettuce crops

Irrigated agriculture is extremely important for Brazil and this technology has increasingly spread among small producers in the country. Irrigation systems located in olive groves add high rates of productivity to plants, especially hardwood vegetables. However, it is necessary to invest in sustainable technologies which reduce energy costs in localized irrigation. Therefore, the objective of this work was to evaluate the technical and economic viability of photovoltaic energy through simulating a drip irrigation system for lettuce crops. Tests were carried out on a hydraulic bench with drip irrigation simulations and set performance curves of the set were compared with the energy from the conventional system (electric grid) and photovoltaic energy. To do so, a direct current electric motor pump and an alternating current electric motor pump were used. The results showed that the use of irrigation for the lettuce crop promoted by photovoltaic energy reduced energy costs by 83.80% when compared to conventional energy.

Phosphorus effluence in artificial water reservoirs of Kalmykiya from cattle breeding companies

Artificial water reservoirs in Kalmykiya, which has limited water resources, were developed for a potable water supply for the local population, cattle breeding, and irrigation. Currently, they are strongly contaminated by biogenic substances. Calculations are provided in this study that confirm the hypothesis that cattle breeding (watering points of cattle and run-off from cattle breeding areas) developed in the water catchment area suppl 12 tons or from 20 to 700 g of phosphorus per 1 m2 of water surface per year in the absence of other contaminants; this is the main reason that phosphorus content in all water reservoirs exceeds the maximum allowable concentration established for fishery water reservoirs (MACf) by tens of thousands of times. The highest proportion (80%) of the overall volume of incoming phosphorus originates from the bovine cattle. Phosphorus loads exceed the allowed and critical values for functioning of the water ecosystem by from 1 to 3 orders of magnitude, forming conditions for eutrophication and rendering water of these reservoirs unsuitable for potable water supply, including for cattle watering points.

Need of Automated System for Climatic Control and Irrigation

Abstract India is an agricultural country. Agriculture affects the economy of India. For better production, irrigation system must be well designed and auto-controlled. Irrigation is a technique used to supplement the rainwater of dry land. Irrigation is a technique for providing water supply to plants at needed interval. Irrigation of different regions of the country is done through different means, such as wells, reservoirs, canals, rivers, etc. There are various types of irrigation system namely surface, localized, drip, sprinkler, center pivot, lateral, sub and manual irrigation. According to World Bank collection of development indicators, India has 60.45% agriculture land. Agriculture contributes 17% of the total GDP of Indian economy. Agriculture plays a vital role in the Indian economy. 70% of the rural households depend on agriculture. Irrigation sector faces lots of issues and challenges viz regional imbalance of rainfall and water availability, faulty ground water policy, water resources face irregular climate change challenge, water shortage due to urbanization and industrialization, heavy subsidies provided by government intended to wasteful use of water. So, it is very essential to supply water in a controlled way. Lots of techniques have been developed to provide controlled automated irrigation system. This paper basically explores the requirements of automated system and various latest techniques for controlling irrigation and climate. Keywords: Irrigation, climate control, smart agriculture system, soil sensor, temperature sensor Cite this Article P Vyas, K Thakur. Need of Automated System for Climatic Control and Irrigation. Journal of Microcontroller Engineering and Applications. 2019; 6(3): 1–4p.

In Vitro Evaluation of Several Antiseptic Solutions Against Staphylococcus Aureus Biofilms: Antiseptics are Able to Fight Staphylococcus Aureus Biofilms on Vascular Grafts

Introduction - Bacterial biofilms have been studied widely and found to account for most antibiotic-resistant and recurrent infections. Prosthetic vascular graft infection is one of the conditions when biofilms form on an implant and cause persistent infection which is extremely difficult to eradicate without removing the graft itself. Currently many conservative treatment options are being explored to preserve the graft. One of these options is local wound irrigation with antiseptic solutions which so far has not been investigated widely enough. Our aim was to test the efficacy of several popular antiseptic solutions against Staphylococcus aureus biofilms in vitro as these bacteria are responsible for most prosthetic vascular graft infections in early postoperative period. Methods - Three series of experiments were performed to test the efficacy of octenidine dihydrochloride, povidone-iodine and chlorhexidine digluconate solutions against Staphylococcus aureus biofilms. Biofilms were grown on glass coverslips, in well-plates with Lubbock’s medium, mimicking the surroundings of the wound and on woven vascular grafts. Biofilms were then treated with antiseptics and their efficacy towards the biofilm’s structure and antimicrobial activity was evaluated. Results - Chlorhexidine digluconate showed outstanding results in destroying the structure of Staphylococcus aureus biofilm, grown on a glass coverslip (p=0.02). In simulated wound conditions, octenidine dihydrochloride and povidone-iodine eradicated biofilm-associated bacteria, while the efficacy of chlorhexidine digluconate was poor. All antiseptics showed positive antimicrobial effects against Staphylococcus aureus biofilms, grown on woven vascular grafts in simulated wound conditions (p=0.02). Additionally, octenidine dihydrochloride showed statistically significant superior effects comparing to povidone-iodine (p=0.009) and chlorhexidine digluconate solution (p=0.041). Conclusion - Chlorhexidine digluconate was most effective on glass coverslips. Both octenidine dihydrochloride and povidone-iodine eradicated biofilm-associated bacteria in simulated wound conditions. Octenidine dihydrochloride showed the strongest antimicrobial activity against Staphylococcus aureus biofilms formed on vascular grafts.

Water Distribution Uniformity in Driping System Under Growing Pressures

Increasing water use efficiency in agricultural systems is critical as it results in economic and environmental cost reductions, especially in localized irrigation, which depends on a number of factors, especially the flow rate of the emitters and proper uniformity of water distribution, both with respect to direct with the pressure of the emitters For this evaluation the use of coefficients of water uniformity, it is essential to indicate the best wetness management. The experiment was carried out in the Irrigation laboratory, in a test stand, using Christiansen uniformity coefficient - CUC, distribution uniformity coefficient - CUD and statistical uniformity coefficient - CUE. In the irrigation line, four pressures on the drip emitter (5, 10, 15 and 20 mca) were applied. The pressure variations obtained did not reduce the efficiency of the uniformity of water distribution by the drip system, falling into high efficiency ranges for all evaluated coefficients, representing adequate wetting rates.

Solar PV Fed Irrigation Pump

Agricultural growth has been severely affected due to the constraints in irrigation-energy deficits. Due to the availability of abundant solar energy especially in India for all days, solar powered irrigation technology has been a promising alternative source compared to canonical electricity and diesel focused pumping systems. How to furnish an electric power suitable to drive an irrigation pump for agricultural purposes in isolated areas using solar PV panels is the problem. This project deals with solving a local irrigation problem in countries. In this proposed project a simple design of simulation and analysis of a PMSM fed by a solar PV, modelled through DC/DC converter controlled by a MPPT and for utilizing the power from Solar. Compared to all converters, luo converters is the advanced technology. POSL luo converter are of new DC-DC step-up converter. This POSL luo converter performs positive to positive DC-DC voltage increasing conversion. The hardware implementation has been done for positive output super-lift luo converter respectively.

Metagenomic analysis of bacterial and viral assemblages from a freshwater creek and irrigated field reveals temporal and spatial dynamics

Lotic surface water sites (e.g. creeks) are important resources for localized agricultural irrigation. However, there is concern that microbial contaminants within untreated surface water may be transferred onto irrigated soil and crops. To evaluate this issue, water samples were collected between January 2017 and August 2018 from a freshwater creek used to irrigate kale and radish plants on a small farm in the Mid-Atlantic, United States. In addition, on one sampling date, a field survey was conducted in which additional water (creek source and point-of-use) and soil samples were collected to assess the viral and bacterial communities pre- and post- irrigation. All samples were processed for DNA extracts and shotgun sequenced on the Illumina HiSeq platform. The resulting metagenomic libraries were assembled de novo and taxonomic and functional features were assigned at the contig and peptide level. From these data, we observed that Betaproteobacteria (e.g. Variovorax) dominated the water, both at the source and point-of-use, and Alphaproteobacteria (e.g. Streptomyces) dominated both pre- and post-irrigated soil. Additionally, in the creek source water there were variations in the abundance of the dominant bacterial genera and functional annotations associated with seasonal characteristics (e.g. water temperature). Antibiotic resistance genes and virulence factors were also identified in the creek water and soil, with the majority specific to their respective habitat. Moreover, an analysis of clustered regularly interspaced short palindromic repeat (CRISPR) arrays showed the persistence of certain spacers through time in the creek water, as well as specific interactions between creek bacteriophages and their hosts. Overall, these findings provide a more holistic picture of bacterial and viral composition, dynamics, and interactions within a freshwater creek that can be utilized to further our knowledge on its suitability and safety for irrigation.

Impacts of Climate Change on Agriculture for Local Paddy Water Requirement Irrigation Barito Kuala, South Kalimantan, Indonesia

Increasing rice consumption demand in Indonesia has provided serious problems such as food insecurity. Being the major staple food, rice production is the main priority of medium and long term development planning in Indonesia. Local rice production is strongly affected by climate conditions, especially in South Kalimantan. Nowadays, the world must adjust to climate change. One of significant effects of changing climate on agriculture is related to productivity. Evapotranspiration is the major cause of loss of water needed, for agricultural requirements. The crop requires effective irrigation system with adequate water amount. The main objective of this research is to analyze the water requirements for the irrigation units in Barito Kuala, South Kalimantan concerning local rice cultivation under the climate change scenarios. Supposed rainfall during the 2050s and 2090s are obtained from four downscaled circulated models and one model for projected temperature under CMIP5 with RCPs 8.5 scenario. Penman-Monteith method was used to calculate the evapotranspiration value. Based on future effective rainfall water requirement is estimated. The result shows the impact of climate change on the water irrigation requirement of local paddy cultivation are 56% and 25 % higher than current condition in July and September October respectively.

Drip fertigation regimes for winter wheat in the North China Plain

To establish the optimum fertilization rate and propose an appropriate drip fertigation regime for winter wheat in the North China Plain (NCP), a three-year field experiment was conducted to evaluate the effects of drip fertigation levels on soil available nutrients, winter wheat growth, grain yield, partial factor productivity (PFP), and irrigation water use efficiency (IWUE) during 2014-2017. The experiment investigated five fertilization rates: 20%, 45%, 70%, 95%, and 120% of the local recommended fertilizer dose (336 kg/ha N and 169 kg/ha P2O5) for high grain yield. The results showed that with the increase of fertilization rates, the concentrations of the soil available nitrogen (N) and phosphorus (P) in the 0–140 cm layer increased, and especially the N in deep layer (100–140 cm) and the P in surface layer (0–20 cm) increased evidently by 0.64 and 0.06 mg/kg with each unit increased of fertilization rate, respectively. Compared with the initial available nutrient concentrations, the fertilization rate of 45%–70% could basically maintain the balance of soil available N, and the fertilization rate of 70% provided a good balance for soil available P. Different fertilization rates had significant effects on winter wheat plant height (H), maximum leaf area index (LAI), dry matter (DM), grain yield, PFP, and IWUE. With each unit of increase in the fertilization rate, the winter wheat yield increased rapidly by 0.61% in the fertilization rate from 20%–70% and slowly by 0.32% in the fertilization rate from 70%–120%. The PFP decreased according to a power function with the increasing fertilization rate. Compared to the average grain yield and PFP under the local surface irrigation regime, drip fertigation of 70% of the local recommended fertilizer dose resulted in a yield increase of 4.0% and a PFP increase of 48.5%. To achieve a relatively high grain yield, high fertilization use efficiency, and minimize risk of environment pollution, a reduction in the fertilization rate to 70% of the local recommended fertilization dose (235 kg/ha N and 118 kg/ha P2O5) was suggested for winter wheat production under drip fertigation in the NCP.

High-Altitude Agro-Pastoralism in the Kyrgyz Tien Shan: New Excavations of the Chap Farmstead (1065–825 cal b.c.)

ABSTRACTThe highlands of Central Asia posed considerable challenges to early agriculturalists, yet the processes of human subsistence strategies there remain poorly understood. In this paper, we present results from the excavation of the Chap in Kyrgyzstan. The recovery of a rich macrobotanical assemblage consisting of several crop species and crop processing debris, together with skeletal remains of pastoral livestock, indicate a localized agro-pastoral complex at 2000 masl dating to 1065–825 cal b.c. Aerial photogrammetry, magnetometry, and topographic modeling reveal local irrigation systems, while stone artifacts are linked with cultivation and crop processing. Furthermore, the ceramic assemblage reveals a local production tradition and stylistic similarities with communities of neighboring regions. Overall, data from Chap contribute to a new understanding of human ecology and agricultural development in the mountains of Central Asia, suggesting that domesticated plants and animals were integral for the intensive occupation of high-elevation valleys in Central Asia.

Temporal stability of soil moisture in banana cropping area in the Brazilian semiarid region

ABSTRACT Soil moisture is essential for agricultural production. Knowledge on its spatial-temporal variability is indispensable to support agriculture, and it is strongly influenced by cultural practices, soil cover conditions and irrigation methods. Thus, this study aimed to evaluate the temporal stability and spatial distribution of soil moisture as a function of the use of banana leaves as soil cover in a plot under conventional sprinkler irrigation and cultivated with banana in the Brazilian semiarid region. The study area was divided in two sectors, with and without covering using banana leaves. Soil moisture was monitored before and after irrigation, at 16 times, using FALKER HidroFarm sensors installed on a transect with 11 units spaced by 8 m, in each sector. The data were analyzed using descriptive statistics, temporal stability and Spearman correlation test. The morphology of the banana leaves and the irrigation system used contributed to lower soil moisture in the covered sector at all monitoring times. Variations in the physical-hydraulic properties of the soil promoted variations in soil moisture with the position of the sensors in the ground. The temporal stability technique allowed the identification of points that represent the mean behavior of soil moisture throughout the area. The use of banana leaf residues caused less soil wetting using sprinkler irrigation, indicating the need to pre-grind the material or use localized irrigation systems, practices that are not very accessible to small farmers.

Institutional Strategies for Adaptation to Water Stress in Farmer-Managed Irrigation Systems of Nepal

Institutions governing common-pool resources have survived decades of global change with mixed performance. However, we have limited knowledge on how local institutions cope with and adapt to combined environmental and socio-economic changes. Using the case of 12 farmer-managed irrigation systems (FMIS) in Central and Western Nepal, this paper explores the institutional coping and adaptation mechanisms to water stress. We find that local irrigation institutions manage water stress using diverse and integrated approaches broadly categorized as structural and operational measures. Structural measures include water-source expansion and infrastructure rehabilitation works whereas water re-allocation and drought continency rules are examples of operational measures. We find that integration of structural and operational measures is more prevalent in highly water-stressed irrigation systems than in less stressed ones. The choice of adaptation strategies has direct implications for agricultural productivity. FMIS that implemented structural measures harvested more crops per year than those systems that adopted only operational strategies or no adaptation strategies. However, the marginal benefit of adopting adaptation measures is particularly pronounced in water-stressed systems. Climate variability and change act as a threat multiplier because they compound the existing threats the FMIS face from social and economic changes. The key to effective integration of structural and operational measures that help FMIS to maintain their productivity during water stress are collective action and governance to overcome biophysical limitations.

TRANSITION FROM SURFACE TO DRIP IRRIGATION IN MOROCCO: ANALYSIS THROUGH THE MULTI-LEVEL PERSPECTIVE

Agriculture uses more than 80% of water resources in Morocco. The sector isinefficient in terms of water use due to the dominance of surface irrigation. Toaddress this issue, there have been efforts in Moroccan strategies to convert surfaceirrigation to localized one. This paper analyses the dynamics of conversion fromsurface irrigation to drip irrigation in Fez-Meknes region (north-eastern Morocco)through the lens of the Multi-Level Perspective (MLP) on socio-technicaltransitions. MLP framework suggests that transitions are the results of dialecticinteractions among a niche (cf. novelty of drip irrigation), a regime (cf. traditionalsystem of surface irrigation) and the socio-technical landscape (e.g. policies). MLPwas complemented with a multi-capital approach to better assess transitionimpacts. Results show that the area equipped with drip irrigation in Fez-Meknesregion increased from 2174 ha in 2008 to 39290 ha in 2016. Different programshave been implemented in the framework of the Green Morocco Plan to fosterirrigation transition e.g. the National Irrigation Water Saving Program (PNEEI),launched in 2007, aims to convert 550,000 ha to localized irrigation (e.g. dripirrigation) in 15 years. Thanks to these programs, financial and technical supporthas been provided to farmers to promote the adoption of water-saving irrigationtechniques and practices. Farm-level results show that transition to localizedirrigation decreases irrigation water use, increases yields and profitability (cf. grossmargin per ha), and improves water productivity. Despite an enabling policylandscape and positive transition impacts, surface irrigation is still maintained inthe region and farmers are reluctant to change for many reasons (e.g. age andeducation level, unclear land tenure, financial and administrative difficulties).Efforts are still needed to train farmers on irrigation scheduling and on the use ofsmart irrigation techniques to save water. Further research is required to betterunderstand current bottlenecks in the irrigation transition process and designappropriate and context-specific transition governance strategies.

Farmers’ autonomous management or state regulation? The consolidation of local irrigation associations in Spain (nineteenth to twentieth centuries)

AbstractThe collective management of irrigation is an essential factor in agrarian development, both present and past. However, the relationship of irrigation associations with the state remains underexplored, despite the increasingly important role played by water policies in the modern world. The present article examines this relationship in Spain over the last two centuries. Our results suggest that, first, the state played a decisive part in the emergence and evolution of irrigation associations, and this belies the assumption of the traditional origin of these institutions; second, that farmers, despite being subject to the regulatory framework, enjoyed substantial autonomy in the management of water resources; and, third, that the relationship between local associations and the state changed over time, in response to political regime changes and the transformation of irrigation agriculture. When the state tried to impose authoritarian policies upon irrigation users, these reacted by developing unprecedented forms of organisation.

Pedal Powered Water Pump Application To Support Irrigation Activities In Carat Village, Gempol District, Pasuruan Regency, East Java Province

In this PKM program, our partner is a fruit farmer in Carat Village, which is the name of a village in GempolDistrict, Pasuruan Regency, East Java Province. This village actually has the opportunity to develop in the plantation sector with its main plants cucumber, cantaloupe, cucumber mas, and roses. However, it is constrained by the condition of very barren rice fields and plantations covering an area of 60 hectares, due to the lack of support for the local irrigation system currently being implemented. Based on interviews and observations in the field, there are 2 main focuses of the problems currently faced by partners, namely: 1) The production sector is caused by the large amount of energy that must be spent to drawwater from the well with the distance of the water source to the plantation using simple equipment and 2). Field of management due to the under-optimal distribution of crop yields and monitoring functions of yields in each period. Some of the things planned by the PKM team are innovating bicycles which are named pedal power as plantation irrigation equipment and solutions in the field of production, as well as providing training and mentoring in financial reporting as a solution in the field of management. The purpose of this activity is to realize a system improvement, increase crop production, and create effective, efficient and competitive management. This activity was realized with an approach in the form of making a sustainable cooperation program untilthe end of PKM, creating a family atmosphere between the two and understanding that the problems experienced werea shared problem so that they could be solved together according to the level of responsibility to achieve the expectedbenefits, namely increased yields, production and productivity and competitiveness, independence and welfare of thecommunity.

Reduced irrigation and nitrogen coupled with no-tillage and plastic mulching increase wheat yield in maize-wheat rotation in an arid region

Irrigation, nitrogen (N) fertilization, and tillage practices for spring wheat following plastic-mulched maize were studied to provide a basis for optimizing production technology to achieve high wheat yield in arid irrigated regions. No-tillage, plastic mulching, water-nitrogen interactions, and crop rotation are the important valuable strategies for improving grain yield (GY) in arid regions, but there is lack of theoretical basis on whether no-tillage in combination with plastic film mulching from the previous crop can enhance GY of following wheat. A field experiment was conducted in an arid region of northwestern China during the 2016 and 2017 growing seasons, which evaluated all combinations of two tillage practices, two levels of irrigation, and three levels of N application. Two tillage practices included no-tillage with previous plastic mulching retained (NT), and conventional tillage (CT). Two levels of irrigation included the local conventional irrigation amount, 2400 m3 ha−1 (high: I2), and the local conventional irrigation amount reduced by 20%, 1920 m3 ha−1 (low: I1). Three levels of N application included the local conventional N amount, 225 kg N ha−1 (high: N3), the local conventional N amount reduced by 20%, 180 N kg ha−1 (medium: N2), and the local conventional N amount reduced by 40%, 135 kg N ha−1 (low: N1). Compared with CT, NT increased GY, biomass yield (BY), and leaf area index (LAI) during the two study years by 10.1–10.4%, 5.4–15.1%, and 22.8–28.5%, respectively. Grain yield was 2.4–4.3% greater with I1 compared to I2, but BY was not significantly different between irrigation levels. Net assimilation rate (NAR) was 5.8–6.7% greater with N2 compared to N3, but LAI were not affected by N rate. A 20% reduction in both irrigation and N application, combined with no-tillage and retention of plastic film mulching from the previous maize crop (NTI1N2), increased GY, BY, and LAI by 15.2–22.0%, 7.8–9.7%, and 17.9–26.1%, respectively, compared to high levels of irrigation and nitrogen with conventional tillage (CTI2N3). The NTI1N2 treatment significantly increased spike number (SN), kernel number per spike (KNS), and thousand-kernel weight (TKW). Path analysis confirmed that increased SN and TKW was the main reason for improved GY with the NTI1N2 treatment. Simultaneous reduction of irrigation and N application, combined with NT and retention of residual plastic film mulching from the previous maize crop, could be considered a favorable strategy for sustainable intensification of wheat production in arid regions.

Effects of micro-sprinkling with different irrigation amount on grain yield and water use efficiency of winter wheat in the North China Plain

It’s very important to guarantee the wheat production and improve water productivity in the North China Plain (NCP). In order to reduce irrigation and ensure the crop production in the NCP, a two-year field experiment of winter wheat was conducted in 2016–2018 using micro-sprinkling irrigation including different irrigation amount treatments (60 mm, MI60; 90 mm, MI90; 120 mm, MI120; and 150 mm, MI150), and the local traditional water-saving and productive flooding irrigation method (TI120) was as a control. The grain yield (GY), dry matter accumulation (DM), root system distribution and water utilization were investigated. The results showed that, the GY of MI60 decreased by 5.1–13.4% compared with TI120; GY of MI90 was comparable with TI120, while that of MI120 and MI150 increased significantly. The higher GY in micro-sprinkling treatments was mainly due to the significant increase of 1,000-grain weight (TGW), which was the result of the significant delay of the senescence in flag leaves during grain filling and then the increase in the post-anthesis DM. In addition, the roots mainly distributed in the 0−60 cm soil profile, and micro-sprinkling ensured the soil water supply in this areas at the critical growth stages; what’s more, micro-sprinkling with reducing irrigation treatments significantly promoted the growth of root system to the deep soil layer, which improved the absorption and utilization of moisture stored in soil. Compared with TI120, the same irrigation amount treatment under micro-sprinkling (MI120) significantly increased water use efficiency (WUE) due to higher GY and lower seasonal evapotranspiration (ET); the 125% irrigation amount treatment (MI150) increased WUE due to higher GY and comparable ET; the 75% irrigation amount treatment (MI90) obtained the similar WUE to TI120; the 50% irrigation amount treatment (MI60) got similar or lower WUE to TI120. Overall, suitable reduction of irrigation amount under micro-sprinkling (MI90) can ensure the grain yield of winter wheat and efficient utilization of irrigation water in the NCP.