2,725 results match your criteria amount irrigation

Biochar and alternate wetting-drying cycles improving rhizosphere soil nutrients availability and tobacco growth by altering root growth strategy in Ferralsol and Anthrosol.

Sci Total Environ 2021 Sep 22;806(Pt 1):150513. Epub 2021 Sep 22.

Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegaard Alle 13, 2630 Taastrup, Denmark; Sino-Danish Center for Education and Research, Eastern Yanqihu Campus, University of Chinese Academy of Sciences, 380 Huaibeizhuang, 101400 Beijing, China. Electronic address:

Biochar has been advocated as a sustainable and eco-friendly practice to improve soil fertility and crop productivity which could aid in the mitigation of climate change. Nonetheless, the combined effects of biochar and irrigation on tobacco growth and soil nutrients in diverse soil types have been incompletely explored. We applied a split-root experiment to investigate the impacts of amendment with 2% softwood- (WBC) and wheat-straw biochar (SBC) on growth responses and rhizosphere soil nutrients availability of tobacco plants grown in a Ferralsol and an Anthrosol. Read More

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September 2021

Predicting adverse scenarios for a transboundary coastal aquifer system in the Atacama Desert (Peru/Chile).

Sci Total Environ 2021 Sep 17;806(Pt 1):150386. Epub 2021 Sep 17.

Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Eugenio Garza Sada 2501, Monterrey 64849, Nuevo Leon, Mexico. Electronic address:

The Caplina/Concordia transboundary coastal aquifer system, located in the Atacama Desert, is the primary source of water supply for domestic use and irrigation for La Yarada-Los Palos (Peru) and Concordia (Chile) agriculture districts, and to a lesser extent, for Tacna province public supply use (Peru). Despite the scarce amount of rainfall (<20 mm/year) in the area and the limited recharge coming from the Andean highlands, this transboundary aquifer system has been overexploited mainly for agriculture since before the 2000s on the Peruvian side. Consequently, this has caused groundwater depletion and seawater intrusion. Read More

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September 2021

Effect of potassium fertilizer on the growth, physiological parameters, and water status of Brassica juncea cultivars under different irrigation regimes.

PLoS One 2021 23;16(9):e0257023. Epub 2021 Sep 23.

Department of Biology, College of Sciences, Taif University, Taif, Saudi Arabia.

Abiotic stress, especially a lack of water, can significantly reduce crop yields. In this study, we evaluated the physiological and biochemical effects of potassium sulfate (K2SO4) fertilizer and varied irrigation regimes on the economically significant oilseed crop, Brassica juncea L, under open field conditions. Two cultivars (RH-725 and RH-749) of B. Read More

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September 2021

Potassium fertilization improves growth, yield and seed quality of sunflower (Helianthus annuus L.) under drought stress at different growth stages.

PLoS One 2021 20;16(9):e0256075. Epub 2021 Sep 20.

Department of Biology, College of Sciences, Taif University, Taif, Saudi Arabia.

Water scarcity is a major concern for sunflower production in the semi-arid and arid regions of the world. Potassium (K) application has been found effective to alleviate the influence of drought stress; however, the impact of drought stress on seed quality of sunflower has not been reported frequently. Therefore, a field experiment was performed to determine the optimum K requirement for mitigating the adverse effects of water stress and improving growth and seed quality of spring-planted sunflower. Read More

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September 2021

Effects of Irrigation at Different Fractions of Crop Evapotranspiration on Water Productivity and Flavonoid Composition of Cabernet Sauvignon Grapevine.

Front Plant Sci 2021 1;12:712622. Epub 2021 Sep 1.

Department of Viticulture and Enology, University of California, Davis, Davis, CA, United States.

Climate change models predict lower precipitation and higher air temperatures that will negatively affect viticultural regions. Irrigation of vineyards will be crucial for mitigating abiotic stress during the growing season. However, the environmental impact of irrigation requires consideration for ensuring its sustainability in the future. Read More

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September 2021

Efficacy of Passive Ultrasonic Activation in Removing Calcium Hydroxide from Simulated Internal Resorption Cavities at Different Root Regions.

Niger J Clin Pract 2021 Sep;24(9):1289-1293

Department of Endodontics, Faculty of Dentistry, Eskişehir Osmangazi University, Turkey.

Aims: The aim of this study was to evaluate the effect of passive ultrasonic activation on calcium hydroxide removal from simulated internal root resorption (IRR) cavities at different root levels.

Methods And Material: Sixty mandibular canines were prepared and divided into 3 groups to create IRR cavities at apical, middle, coronal root levels. The cavities filled with calcium hydroxide (CH). Read More

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September 2021

Sodium alginate nanocomposite based efficient system for the removal of organic and inorganic pollutants from wastewater.

Int J Biol Macromol 2021 Sep 11;191:243-254. Epub 2021 Sep 11.

Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia. Electronic address:

An effective and selective catalytic system based on cerium oxide-stannous oxide (CeO-SnO) wrapped Na-alginate hydrogel was developed for the selective reduction of potassium ferricyanide (K[Fe(CN)]). Na-alginate hydrogel was used as a reacting container for CeO-SnO nanoparticles. Na-alginate wrapped CeO-SnO (Alg/CeO-SnO) was applied as a catalyst and examined toward the reduction of several hazardous pollutants, such as nitrophenols, dyes and K[Fe(CN)]. Read More

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September 2021

Modeling of an irrigation system in a virtual physical space.

Math Biosci Eng 2021 08;18(5):6841-6856

Plovdiv University "Paisii Hilendarski", Plovdiv 4000, Bulgaria.

One of the major challenges that smart agriculture is expected to address is the efficient use of water resources. The conservation and the efficient use of clean water is a long-term strategy worldwide. Modeling of smart agriculture systems is an important factor because the processes there are very slow and sometimes it takes a year or more for a full crop cycle. Read More

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Conservation agricultural practices for minimizing ammonia volatilization and maximizing wheat productivity.

Environ Sci Pollut Res Int 2021 Sep 10. Epub 2021 Sep 10.

Centre for Environment Science and Climate Resilient Agriculture (CESCRA), ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.

A large amount of ammonia volatilization from the agricultural system causes environmental problems and increases production costs. Conservation agriculture has emerged as an alternate and sustainable crop production system. Therefore, in the present study, ammonia losses from different agricultural practices were evaluated for the wheat crop under different tillage practices. Read More

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September 2021

Land gradient and configuration effects on yield, irrigation amount and irrigation water productivity in rice-wheat and maize-wheat cropping systems in Eastern India.

Agric Water Manag 2021 Sep;255:107036

International Rice Research Institute (IRRI), Los Baños, Laguna, The Philippines.

Laser land levelling is expanding rapidly in the rice-wheat (RW) and maize-wheat (MW) systems of the Indo-Gangetic Plains of India and Pakistan. Current practice is to level to zero (0%) gradient, whereas a small gradient (e.g. Read More

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September 2021

Analysis of aerosol production and aerosol dispersion during otologic surgery.

Eur Arch Otorhinolaryngol 2021 Sep 3. Epub 2021 Sep 3.

ENT Department, Servicio de Otorrinolaringología, Hospital Clínico San Carlos, Universidad Complutense, Calle Profesor Martin Lagos s/n. 5ª Planta, Madrid, Spain.

Background: As a respiratory disease, the transmission of Coronavirus disease (COVID-19) is mainly caused by small droplets and aerosols. Healthcare personnel are particularly exposed during otologic surgery given the continuity with the nasopharynx, where the viral load is high, and the use of high-speed instruments. The purpose of the present study is to test a model of droplet dispersion produced in the performance of a drilling procedure on human bone to provide information about its distribution and size of the deposit in similar conditions to those of an operating theatre, to design different preventive measures. Read More

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September 2021

Groundwater quality assessment for irrigation by adopting new suitability plot and spatial analysis based on fuzzy logic technique.

Environ Res 2021 Aug 31;204(Pt A):111729. Epub 2021 Aug 31.

Department of Earth sciences, Annamalai University, Annamalai Nagar, Tamilnadu, India.

This study was focused on identifying the region suitable for agriculture-based, using new irrigation groundwater quality plot and its spatio-temporal variation with fuzzy logic technique in a geographic information system (GIS) platform. Six hundred and eighty groundwater samples were collected during pre, southwest, northeast, and post monsoon periods. A new ternary plot was also attempted to determine the irrigation suitability of water by considering four essential parameters such as sodium adsorption ratio (SAR), permeability index (PI), Sodium percentage (Na %), and electrical conductivity (EC). Read More

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Energy-Efficient Wireless Communication Strategy for Precision Agriculture Irrigation Control.

Sensors (Basel) 2021 Aug 18;21(16). Epub 2021 Aug 18.

Tecnologico de Monterrey, School of Engineering and Science, Ave. Heroico Colegio Militar 4700, Chihuahua 31300, Mexico.

In smart farming, precision agriculture irrigation is essential to reduce water consumption and produce higher crop yields. Closed-loop irrigation based on soil moisture measurements has demonstrated the capability to achieve a considerable amount of water savings while growing healthy crops. Automated irrigation systems are typically implemented over wireless sensor networks, where the sensing devices are battery-powered, and thus they have to manage energy constraints by implementing efficient communication schemas. Read More

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Examining the Effect of Gravity on Different Irrigation Systems: An Study.

J Pharm Bioallied Sci 2021 Jun 5;13(Suppl 1):S692-S695. Epub 2021 Jun 5.

Department of Substitutive Dental Science, College of Dentistry, King Khalid University, Abha, Saudi Arabia.

Background: Periapical extrusion is frequently observed during endodontic therapy. It can lead to acute injury of periapical tissues, resulting in interappointment pain or swelling. The effect is pronounced in teeth with immature apex, which are more susceptible to the extrusion of irrigant. Read More

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A Comparative Assessment of Three Different Irrigating Systems in Root Canal Treatment: An Study.

J Pharm Bioallied Sci 2021 Jun 5;13(Suppl 1):S429-S431. Epub 2021 Jun 5.

Department of Pedodontics and Preventive Dentistry, Maharaja Gangasingh Dental College and Research Centre, Sri Gangangar, Rajasthan, India.

Background: Exact diagnosis, efficient cleaning, shaping as well as disinfection of the root canals lead to successful root canal treatment. The present study compared three different irrigating systems in root canal treatment.

Methodology: Sixty recently extracted permanent mandibular molars were classified into four groups: Group I, II, III, and IV with 15 teeth each. Read More

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Evaluation of functional parameters, patient-reported outcomes and workload related to continuous urinary bladder irrigation after transurethral surgery.

Transl Androl Urol 2021 Jul;10(7):2921-2928

Faculty of Medicine, Department of Urology, Medical Center - University of Freiburg, Freiburg, Germany.

Background: Continuous saline bladder irrigation (CBI) is a common procedure after transurethral surgery and to treat gross hematuria. We conducted this study to gather data on parameters of CBI, medical staff's work load associated with CBI monitoring, patients' feeling of safety and of patients' impairments during CBI.

Methods: We observed CBI taking place after transurethral surgery for a 2-9-hour period. Read More

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Arsenic contamination, impact and mitigation strategies in rice agro-environment: An inclusive insight.

Sci Total Environ 2021 Aug 9;800:149477. Epub 2021 Aug 9.

Department of Environmental Science, University of Kalyani, Nadia, West Bengal, India. Electronic address:

Arsenic (As) contamination and its adverse consequences on rice agroecosystem are well known. Rice has the credit to feed more than 50% of the world population but concurrently, rice accumulates a substantial amount of As, thereby compromising food security. The gravity of the situation lays in the fact that the population in theAs uncontaminated areas may be accidentally exposed to toxic levels of As from rice consumption. Read More

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Farmland composition and farming practices explain spatio-temporal variations in red-legged partridge density in central Spain.

Sci Total Environ 2021 Aug 2;799:149406. Epub 2021 Aug 2.

Instituto de Investigación en Recursos Cinegéticos (IREC) (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain.

Many farmland bird populations are declining, and their negative trends are often associated with changes in land-use or farming practices, including the use of agrochemicals. The red-legged partridge (RLP) is a Mediterranean farmland game species of high socio-economic importance whose populations are thought to have declined sharply since the mid-20th century associated with farmland changes. However, no large-scale studies have tested whether abundance or trends of RLP are related to farmland composition or management. Read More

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Assessing the mobility of veterinary drugs with column experiments using different soils and under controlled flow conditions.

Chemosphere 2021 Aug 19;277:130329. Epub 2021 Mar 19.

Laboratory of Pharmacology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece. Electronic address:

Veterinary pharmaceuticals are pollutants that received much attention during the last 20 years. Macrocyclic lactones are a class of drugs globally used in animal and human health, as well as crops protection. Some of its members are key substances for global food security. Read More

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Mitigating global warming potential while coordinating economic benefits by optimizing irrigation managements in maize production.

J Environ Manage 2021 Nov 4;298:113474. Epub 2021 Aug 4.

China Agricultural University, Beijing, 100094, PR China. Electronic address:

China is the second largest irrigated country in the world. Increasing irrigation intensity costs more water and energy, and produces more greenhouse gas (GHG). In the present study, the responses of maize economic and environmental benefits to different irrigation managements were analyzed in a 2-year field study. Read More

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November 2021

A narrative review on environmental impacts of cannabis cultivation.

J Cannabis Res 2021 Aug 6;3(1):35. Epub 2021 Aug 6.

Department of Health Sciences Environmental Health and Sustainability Program, Illinois State University, Normal, IL, 61790, USA.

Interest in growing cannabis for medical and recreational purposes is increasing worldwide. This study reviews the environmental impacts of cannabis cultivation. Results show that both indoor and outdoor cannabis growing is water-intensive. Read More

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Potato growth, photosynthesis, yield, and quality response to regulated deficit drip irrigation under film mulching in a cold and arid environment.

Sci Rep 2021 Aug 5;11(1):15888. Epub 2021 Aug 5.

College of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, 730070, China.

The effects of the amount and timing of regulated deficit drip irrigation under plastic film on potato ('Qingshu 168') growth, photosynthesis, yield, water use efficiency, and quality were examined from 2017 to 2019 in cold and arid northwestern China. In the four stages of potato growth (seedling, tuber initiation, tuber bulking, starch accumulation), eight treatments were designed, with a mild deficit was in treatments WD1 (seedling), WD2 (tuber initiation), WD3 (tuber bulking), and WD4 (starch accumulation); and a moderate deficit in WD5 (seedling), WD6 (tuber initiation), WD7 (tuber bulking), and WD8 (starch accumulation). The net photosynthetic rate, stomatal conductance, and transpiration rate decreased significantly under water deficit in the tuber formation and starch accumulation stages. Read More

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Perceptions on the use of recycled water for produce irrigation and household tasks: A comparison between Israeli and Palestinian consumers.

J Environ Manage 2021 Nov 30;297:113234. Epub 2021 Jul 30.

Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, College Park, MD, USA. Electronic address:

Water scarcity has resulted in extensive wastewater recycling for agricultural irrigation in both Israel and the Palestinian Territories. However, minimal data have been collected regarding perceptions about wastewater recycling between the populations in these two areas. While geographically close and economically linked, these two populations differ in terms of governance, income, and access to technology for wastewater recycling. Read More

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November 2021

Greywater as a sustainable source for development of green roofs: Characteristics, treatment technologies, reuse, case studies and future developments.

J Environ Manage 2021 Jul 3;295:112991. Epub 2021 Jul 3.

Department of Environmental Health Engineering, Kermanshah University of Medical Sciences, Kermanshah, Iran.

Municipal activities are one of the most important water users worldwide; thus, the treatment and reuse of greywater for non-potable purposes helps to reduce a remarkable amount of consumed water within urban communities. To achieve greywater reuse standards, and remove surfactants, micropollutants, organic matters, microorganisms and other pollutants various methods including physical, chemical and biological processes have been used. Treated greywater can be used on site for different purposes: carwash, toilet flushing, fire protection, green roofs, green walls, non-food irrigation etc. Read More

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A prospective study comparing side-firing KTP laser enucleation vs bipolar transurethral resection of bladder tumor for small bladder tumors in an outpatient setting.

Cent European J Urol 2021 10;74(2):215-221. Epub 2021 Apr 10.

Department of Anesthesia, Atal Bihari Vajpayee Institute of Medical Sciences & Dr. Ram Manohar Lohia Hospital, New Delhi, India.

Introduction: Laser therapy provides an alternative option for treating non-muscle-invasive bladder cancer. The clinical evidence for potassium-titanyl-phosphate (KTP) laser en bloc resection is still limited. Here, we evaluated the efficacy, safety profile, and outcomes of side-firing KTP laser enucleation with bipolar transurethral resection of bladder tumor (TURBT) in carefully selected patients with small bladder tumors in an office setting. Read More

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Simulating soil nitrogen fate in irrigated crop production with manure applications.

Sci Total Environ 2021 Nov 17;793:148510. Epub 2021 Jun 17.

USDA-ARS Rangeland Resources and Systems Research Unit, Fort Collins, CO 80526, United States of America.

Dairy manure is commonly applied to irrigated agricultural crops in the Magic Valley Region of southern Idaho, which has reported to impact the quality of surface and ground water. In this study, we used the Root Zone Water Quality Model (RZWQM2) to provide information about the long-term implications of manure applications. RZWQM2 was first calibrated and validated using 4 years of data from a long-term study with annual and biennial manure application rates of 18 Mg ha, 36 Mg ha, and 52 Mg ha, along with a control and conventional fertilizer treatment for crop yield, soil water and soil N. Read More

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November 2021

Excavated vs novel in situ soil washing as a remediation strategy for sandy soils impacted with per- and polyfluoroalkyl substances from aqueous film forming foams.

Sci Total Environ 2021 Nov 1;794:148763. Epub 2021 Jul 1.

Norwegian Geotechnical Institute (NGI), P.O. Box 3930, Ullevål Stadion, NO-0806 Oslo, Norway.

In situ soil washing at the field scale has not yet been investigated as a remediation strategy for soils impacted by per- and polyfluoroalkyl substances (PFAS). This remediation strategy is a promising low-cost alternative to other costlier remediation options like excavating, transporting and landfilling large amounts of PFAS contaminated soil. However, it is unclear if it is effective at the field scale, where large areas of heterogenous soil can be challenging to saturate with infiltration water and then pump to a treatment facility. Read More

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November 2021

Pollinators and plant nurseries: how irrigation and pesticide treatment of native ornamental plants impact solitary bees.

Proc Biol Sci 2021 07 28;288(1955):20211287. Epub 2021 Jul 28.

Department of Entomology, University of California, 900 University Ave, Riverside, CA 92521, USA.

A key conservation goal in agroecosystems is to understand how management practices may affect beneficial species, such as pollinators. Currently, broad gaps exist in our knowledge as to how horticultural management practices, such as irrigation level, might influence bee reproduction, particularly for solitary bees. Despite the extensive use of ornamental plants by bees, especially little is known about how irrigation level may interact with insecticides, like water-soluble neonicotinoids, to influence floral rewards and bee reproduction. Read More

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Strategic tillage achieves lower carbon footprints with higher carbon accumulation and grain yield in a wheat-maize cropping system.

Sci Total Environ 2021 Jul 22;798:149220. Epub 2021 Jul 22.

College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, PR China; Key Laboratory of Farming System, Ministry of Agriculture and Rural Affairs of China, Beijing 100193, PR China. Electronic address:

Continuous single tillage has the potential to increase greenhouse gas (GHG) emissions and decrease the accumulation of soil organic carbon (SOC), thus increasing carbon footprints (CFs). However, in a wheat-maize cropping system, limited information was available about the effects of strategic tillage on CFs. Thus, a four-year field experiment was conducted, including continuous rotary tillage (RT), continuous no-till (NT), RT + subsoiling (RS), and NT + subsoiling (NS), to investigate the effects of NS (strategic tillage) on the unit area and unit yield. Read More

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Development of a distributive Three Gorges Project input-output model to investigate the disaggregated sectoral effects of Three Gorges Project.

Sci Total Environ 2021 Nov 1;797:148817. Epub 2021 Jul 1.

China State Grid Integrated Energy Planning and D&R Institute, 100032 Beijing, China; State Grid Integrated Energy Group Co.Ltd, Beijing 100032, China.

Research on the overall social, economic and environmental (SEE) impacts of water resources projects (WRP) has gradually attracted attention. However, the WRP-related indirect impacts as linked through various supply chains from a number of disaggregated sectors and their interactive relationship are rarely studied. Here in this study, under a general disaggregated input-output (IO) framework, a distributive Three Gorges Project input-output (DTGIO) model is developed to investigate the composite effects of Three Gorges Project (TGP) based on a disaggregated TGP-IO table for the Yangtze River economic belt (YREB). Read More

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November 2021