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deficit irrigation; irrigation management; irrigation water, etc ; grain yield; rain; remote sensing; sprinkler irrigation; surface irrigation; sustainable agriculture; water conservation; wheat; Show all 11 Subjects
Abstract:
... Water-saving through deficit irrigation management is a prominent approach to improving water productivity (WP) in sustainable agriculture. However, it is not feasible to assess many irrigation scenarios and their impact on WP. Therefore, crop modeling is a valuable tool for evaluating the effect of different irrigation scenarios on yield and WP. No study has evaluated surface irrigation and trans ...
irrigation, etc ; artificial intelligence; canopy; drought; industry; model validation; phenotype; radiative transfer; remote sensing; summer; tomatoes; uncertainty; Show all 12 Subjects
Abstract:
... Drought management largely depends on the availability of timely, accurate and integrated information about its characteristics. Concurrently, biostimulants could represent a sustainable measure to foster the resilience of cropping systems under water-limited conditions. Nevertheless, scientific recognition of the potential of biostimulants has not grown as fast as the interest from industry: ther ...
irrigation rates; irrigation systems, etc ; employment; models; India; Show all 5 Subjects
Abstract:
... In the present study, a new optimization approach, intuitionistic fuzzy optimization (IFO), has been proposed for optimal cropping pattern in the Kakrapar Right Bank Main Canal command area of Ukai Kakrapar Water Resources Project in India. The IFO is an extension of the fuzzy optimization technique which considers, apart from the degree of acceptance, the degree of rejection and hesitation index ...
irrigation; irrigation water, etc ; certification; empirical research; water conservation; Show all 5 Subjects
Abstract:
... The unsustainable use of irrigation water is one of the most serious environmental problems in coffee farming. Rapid expansion of sustainability certifications and adoption of advanced irrigation technologies are expected to promote more sustainable water use through changes in water management practices in coffee farming. However, there lacks empirical evidence on the effects of those certificati ...
deficit irrigation; irrigation scheduling; irrigation water, etc ; corn; crop yield; evapotranspiration; models; water requirement; water security; water use efficiency; Iran; Show all 11 Subjects
Abstract:
... The DSSAT4.7-CERES model was employed to simulate plant-water nexus conditions in the future of Mazandaran province in Iran, using ensemble outputs of various GCMs and emission scenarios with LARS-WG 5.5 in the time period 2010–2100. The results showed during the 21ˢᵗ century, maize water requirement is expected to be reduced by 3.3–14.1%. Under climate change scenarios, both negative and positive ...
irrigation scheduling; irrigation water, etc ; cultivars; nutrient content; potatoes; starch; water supply; Show all 7 Subjects
Abstract:
... Apart from some works dealing with potato tuber growth and nutritional composition in response to water supply, no study on the effects of irrigation water saving strategies has been found in the literature. This study aimed to investigate the effects of four irrigation regimes: I0 dry control, I1 irrigation during the whole cycle, I2 irrigation from tuber initiation up to 50% of tuber growth, I3 ...
irrigation rates; irrigation scheduling; irrigation water, etc ; Calligonum; Haloxylon; freshwater; halophytes; microirrigation; saline groundwater; soil water; soil water storage; water conservation; Show all 12 Subjects
Abstract:
... Freshwater resources are in a shortage in arid regions worldwide, especially in extremely arid desert areas. To solve this problem, highly saline groundwater is used for drip irrigation of desert plants. Since more irrigation infiltrating into the deep soil cannot be absorbed and utilized by desert plants, it is crucial to determine optimal water-saving irrigation regimes. In this study, we examin ...
deficit irrigation; irrigation rates; irrigation water, etc ; Mentha piperita nothosubsp. piperita; essential oils; leaves; microirrigation; oils; rhizosphere; steam distillation; water conservation; Show all 11 Subjects
Abstract:
... The effects of varying irrigation volume and placement (regulated deficit irrigation that irrigated the entire root zone versus partial root zone drying that irrigated only half of the root zone at a time), on drip-irrigated peppermint (Mentha piperita L.) were studied. Treatments included full irrigation (FI) and regulated deficit irrigation receiving 85%, 70%, 55% and 40% of the irrigation volum ...
irrigation; irrigation water, etc ; Escherichia coli; Salmonella; chickens; farms; humans; lettuce; risk; Brazil; Show all 10 Subjects
Abstract:
... AIMS: To gather data on agricultural practices in organic farms in Sao Paulo, Brazil, and evaluate their relationship with the microbiological characteristics of samples collected along the production chain. METHODS AND RESULTS: Practices data were based on field observations and interviews with farmers in 10 selected organic lettuce producing farms. Counts of Enterobacteriaceae and surveys for Sa ...
irrigation; irrigation water, etc ; case studies; groundwater; rhizosphere; salinity; soil water; uncertainty; China; Show all 9 Subjects
Abstract:
... An integrated simulation-optimization framework is developed under uncertainty to enhance irrigation water productivity and control salinity in an arid area. A full fuzzy dependent linear fractional programming approach is formulated by incorporating fuzzy dependent-chance programming, fuzzy credibility-constrained programming and linear fractional programming within a general framework of irrigat ...
deficit irrigation; irrigation rates; irrigation water, etc ; Prunus dulcis; almonds; evapotranspiration; fruits; orchards; production functions; seeds; tree mortality; water allocation; water deprivation; Spain; Show all 14 Subjects
Abstract:
... A substantial area of the new almond plantations in Spain is under irrigation, but due to recurring severe droughts, the irrigation water allocation for agriculture can be drastically reduced eventually. This study assesses the physiological and yields effects of a single-season water deprivation (2017) over three seasons (2017–2019) on a previously well-irrigated mature almond [Prunus dulcis (Mil ...
deficit irrigation; irrigation rates; wastewater irrigation, etc ; air temperature; biomass production; carbon dioxide; conventional tillage; corn; freshwater; silage; soil temperature; wastewater; water reuse; Show all 13 Subjects
Abstract:
... It is necessary to understand and measure the impact of tillage and irrigation practices on CO₂ emissions from the soil with an environmental sensitivity, while wastewater irrigation increases crop biomass yield. The main objective of the present study was to investigate the changes and reasons in CO₂ emissions from soil conventional and conservative tillage under different levels of wastewater ir ...
irrigation management; surge irrigation, etc ; energy; fertilizer application; fertilizers; mechanization; profitability; rice; straw; China; Show all 10 Subjects
Abstract:
... This study performed energy analyses of fully mechanized rice production mode (FM) and semi-mechanized rice production mode (SM) in China. Fertilizer, fuel, and water were the three largest inputs, accounting for 92.02% of the total energy input. FM adopted side-deep fertilization with machine transplanting and implemented intermittent irrigation regime to improve water and fertilizer use efficien ...
furrow irrigation; irrigation rates; irrigation scheduling, etc ; Lactuca sativa var. angustana; case studies; field experimentation; lettuce; microirrigation; nitrogen; nitrogen fertilizers; risk; soil; volatilization; water; Show all 14 Subjects
Abstract:
... Nitrogen losses under different irrigation modes have been evaluated by many studies, yet it is not very clear whether the lost N sources are from the soil or fertilizer. In order to quantitatively investigate the effects of different irrigation modes on fertilizer N loss, we used the ¹⁵N-labeledurea (¹⁵N abundance of 19.6%) as fertilizer and the lettuce (Lactuca sativa var. angustana iris) as the ...
irrigation scheduling; irrigation water, etc ; crop insurance; farmers; issues and policy; mathematical models; water shortages; Show all 7 Subjects
Abstract:
... The design of federal crop insurance has attracted the interest and attention of many economists and policymakers in the United States. Moral hazard is a frequently cited concern, as insurance may reduce the incentive for farmers to manage properly their agricultural operation. Moral hazard could play a role in irrigation decisions by incentivizing a farmer to choose a riskier irrigation managemen ...
irrigation water; surface irrigation, etc ; USDA; economic investment; energy; furrows; soil profiles; systems engineering; water requirement; Show all 9 Subjects
Abstract:
... Surface irrigation methods need less capital investment and energy than pressurized systems, and therefore they have a wide range of use in many regions. However, inaccurate system design and irrigation applications lead to non-uniform distribution of water in the soil profile. Therefore, the water loss caused by deep percolation increases, and the water application efficiency decreases. In this i ...
irrigation; irrigation water, etc ; air temperature; crop coefficient; evapotranspiration; lysimeters; soil heat flux; water management; wheat; Show all 9 Subjects
Abstract:
... Accurate crop evapotranspiration simulation is vital for reasonable irrigation planning. The two-step method for crop evapotranspiration estimation has been widely used for irrigation water demand management. However, in the two-step method, the crop coefficient (Kc) is typically taken as a constant in crop growth stages, which may result in a certain error in evapotranspiration estimation. It is ...
irrigation rates; irrigation systems; irrigation water, etc ; Zea mays; crop yield; effective precipitation; groundwater; humans; neural networks; population growth; prediction; rain; uncertainty; water allocation; winter wheat; China; Show all 16 Subjects
Abstract:
... Due to population growth and human activities, water shortages have become an increasingly serious concern in the North China Plain, which has become the world’s largest underground water funnel. Because the yield per unit area, planting area of crops, and effective precipitation in the region are uncertain, it is not easy to plan the amount of irrigation water for crops. In order to improve the a ...
... Quantitatively assessing the feasibility of sprinkler irrigation at the regional level from the perspectives of water, food and economy could provide the basis for decision-making on how to implement sprinkler irrigation according to local conditions to alleviate the severe contradiction between groundwater shortages and food production. In this study, the distributed agro-hydrological model, afte ...
... A 2‐year study was conducted to assess the effects of irrigation regimes using saline water on soil salinization, yield, water productivity, and net income of faba bean (Vicia faba L.) under actual farming conditions in arid regions of Tunisia. Faba bean (cvs. Luz de Otono and local) was grown on a sandy soil and drip‐irrigated with water having an electrical conductivity of 6 dS m⁻¹. Two deficit ...