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furrowirrigation, etc ; furrows; hydraulic flumes; water; Show all 4 Subjects
Abstract:
... The hydraulic characteristics of the flow are measured using tools such as flumes, in the design and evaluation of furrow irrigation systems. Proper use of these tools, such as their immersion while working, is one of the important executive points in this field; in this study, trapezoidal flumes are used to measure the intensity of input and output flow in furrow irrigation. The proper method of ...
furrowirrigation, etc ; furrows; runoff; systems engineering; uncertainty; Show all 5 Subjects
Abstract:
... The design of tailwater recovery system design for furrow irrigation was examined. The analysis expands on procedures developed by previous authors and aims to account for the operation and performance of the irrigation system on tailwater system design. The method is demonstrated with a hypothetical test case which was examined under a range of inflow rates per furrow and target application depth ...
furrowirrigation, etc ; absorption; irrigation management; lettuce; microirrigation; nitrogen fertilizers; soil; urea; water; Show all 9 Subjects
Abstract:
... Soil residual N is a potential factor threatening the environment, but it is also an N fertilizer resource. Few studies have evaluated the fate of soil residual N under agronomic practice. The objective of this study was to investigate the distribution of residual N and its possible influencing factors with different irrigation regimes. Under three N residual situations created by the previous sea ...
furrowirrigation, etc ; agricultural industry; cucumbers; greenhouses; income; irrigation water; microirrigation; water use efficiency; China; Show all 9 Subjects
Abstract:
... The cultivation mode of planting offseason crops, such as cucumber, with drip irrigation has been widely used in greenhouses in North China to achieve high yields, obtain large economic benefits, and improve water use efficiency. The objectives of this study were to evaluate the effects of drip irrigation on the irrigation water amount, irrigation water use efficiency (IWUE), and cucumber yield an ...
furrowirrigation, etc ; harvest index; irrigation rates; irrigation water; models; soil water; water use efficiency; winter wheat; Show all 8 Subjects
Abstract:
... Irrigation regimes should be chosen to maximize crop yield and water use efficiency. To realize high yield and efficient water use with the appropriate furrow irrigation regime, the effects of two regimes (alternate furrow irrigation and conventional furrow irrigation) and three lower soil moisture limits (60, 70, and 80%) were studied on winter wheat yield and water consumption using a multi-leve ...
furrowirrigation, etc ; agricultural research; agronomy; arid lands; border irrigation; models; surface irrigation; surface water; technology; water conservation; water flow; China; Show all 12 Subjects
Abstract:
... Improving traditional surface irrigation technology and vigorously promoting water-saving surface irrigation are important ways to improve the efficiency of water resource utilization. In our study, we propose a new technology of surface irrigation, micro-furrow irrigation, which combines the advantages of furrow irrigation and border irrigation. The objective of this experiment was to evaluate th ...
... Naturally forming or mechanically induced hardpans limit water infiltration and crop productivity in many agricultural regions including the Mid-South U.S. This research was conducted to determine whether low-till parabolic subsoiling and furrow irrigation interact to influence soil water dynamics and maize production in the Mid-South. The factorial effects of subsoiling frequency (no subsoiling, ...
furrowirrigation, etc ; Glycine max; Gossypium hirsutum; chlorophyll; cotton; electron transfer; energy; furrows; gas exchange; photochemistry; photorespiration; photosystem II; soybeans; stomatal conductance; Show all 14 Subjects
Abstract:
... Soybean [Glycine max (L.) Merr.] and cotton (Gossypium hirsutum L.) are the major row crops in the USA, and growers are tending toward the twin-row system and irrigation to increase productivity. In a 2-year study (2018 and 2019), we examined the gas exchange and chlorophyll fluorescence parameters to better understand the regulatory and adaptive mechanisms of the photosynthetic components of cott ...
... This study aims to evaluate the water and economic productivity of wheat using different planting and irrigation methods under dry and wet seasons. They were carried out in randomized blocks according to the split-plot design with three replications for two growing seasons. The main plots were P₁: Conventional flat planting (CFP), P₂: Raised-bed planting (RBP); sub-plots were; I₀: Rainfed conditio ...
furrowirrigation, etc ; Alternaria solani; blight; computer software; cultivars; descriptive statistics; disease severity; furrows; integrated pest management; potatoes; principal component analysis; trifloxystrobin; Show all 12 Subjects
Abstract:
... Potato early blight disease, Alternaria solani and A. alternate, is of worldwide importance. It is necessary to take control measures, being economic, broadly applicable and well adapted by farmers. In this regard, for an integrated pest management programs, trails were conducted on irrigation types; sprinkler, drip and furrow systems, panting methods; one and two rows, delay in planting date, sus ...
furrowirrigation, etc ; furrows; irrigated farming; irrigation scheduling; overland flow; runoff; soil; streams; subsurface flow; sugarcane; surface irrigation; surface water; transpiration; water conservation; Iran; Show all 15 Subjects
Abstract:
... Surface irrigation worldwide exhibits low efficiency due to excessively deep percolation and runoff. To optimize surface irrigation practice, two questions must be answered simultaneously: when to irrigate and how to irrigate (what stream size to use and for how long) to meet crop water requirements. Current surface irrigation optimization models are one-dimensional, meaning they can only simulate ...
furrowirrigation, etc ; Lactuca sativa var. angustana; case studies; field experimentation; irrigation rates; irrigation scheduling; 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 ...
furrowirrigation, etc ; Zea mays; corn; evapotranspiration; fertigation; grain yield; irrigation rates; irrigation scheduling; irrigation water; microirrigation; nitrogen; water requirement; water stress; water use efficiency; Show all 14 Subjects
Abstract:
... Information and data about quantification and comparison of crop water productivity indices for various irrigation levels and methods and nitrogen (N) application timings “simultaneously” under the same conditions do not exist. Unprecedented and extensive field experiments were conducted for maize (Zea mays L.) in 2016 and 2017 under center pivot (CP), subsurface drip irrigation (SDI) and furrow i ...
furrowirrigation, etc ; agricultural soils; emissions factor; fertigation; fertilizers; field experimentation; highlands; microirrigation; nitrogen; nitrogen dioxide; nitrous oxide; plant growth; potatoes; soil solution; water management; Show all 15 Subjects
Abstract:
... Irrigation methods can affect nitrogen loss in agricultural soil. Exploring the effects of different irrigation methods on soil nitrogen losses in arid areas can provide a basis for more effective water and fertilizer management. A 2-year field experiment was performed, using a static chamber and soil solution extractor, to quantify nitrous oxide (N₂O) emissions and nitrogen leaching from upland s ...
furrowirrigation, etc ; Arachis hypogaea; agricultural land; ammonia; biochar; climate; crop yield; environment; field experimentation; microirrigation; mulching; nitrogen; nitrous oxide; peanuts; soil; soil minerals; volatilization; Show all 17 Subjects
Abstract:
... Nitrous oxide and ammonia emissions from farmland need to be abated as they directly or indirectly affect climate warming and crop yield. We conducted a two-year field experiment to investigate the effect of biochar applied at two rates (no biochar application vs. biochar applied at 10 t ha⁻¹) on gaseous nitrogen (N) losses (N₂O emissions and NH₃ volatilization), plant N uptake, residual soil mine ...
furrowirrigation, etc ; Populus tomentosa; abscission; autumn; canopy; irrigated farming; irrigation rates; leaves; logit analysis; microirrigation; phenology; rain; spring; tree growth; trees; vegetation index; wet season; Show all 17 Subjects
Abstract:
... Due to global warming, changes in plant phenology such as an early leaf spreading period in spring, a late abscission period in autumn, and growing season extension are commonly seen. Here, near-earth remote sensing images were used to monitor the canopy phenology of Populus tomentosa B301 in planted forests under full drip irrigation, full furrow irrigation, and no irrigation (rain fed). Experime ...
furrowirrigation, etc ; Albaqualfs; Oryza sativa; conventional tillage; cultivars; drought tolerance; flood irrigation; greenhouse gases; nitrous oxide; no-tillage; paddies; rice; silt loam soils; water management; Arkansas; Show all 15 Subjects
Abstract:
... The development of drought-resistant hybrid rice (Oryza sativa) cultivars has allowed furrow-irrigated rice production systems to become an increasingly popular alternative to traditional flood-irrigation. However, potential environmental implications, such as greenhouse gas emissions, specifically nitrous oxide (N₂O), have yet to be evaluated. This study evaluated the effects of site position (i. ...
furrowirrigation, etc ; equations; furrows; infiltration rate; infiltrometers; Show all 5 Subjects
Abstract:
... The Kostiakov–Lewis equation is one of the commonly used infiltration equations in furrow irrigation. Elliott and Walker developed a two‐point method to estimate coefficients of the Kostiakov–Lewis equation. The basic infiltration rate (fₒ) in the Kostiakov–Lewis equation is usually calculated by the inflow–outflow method to determine the other two Kostiakov–Lewis parameters. In that method the en ...
furrowirrigation, etc ; Zea mays; agricultural productivity; corn; fertigation; furrows; grain yield; growth and development; irrigation rates; leaf area index; microirrigation; nitrogen; plant height; soil; spring; water quality; Show all 16 Subjects
Abstract:
... Water availability and water quality problems negatively impact agricultural productivity due to improper nitrogen (N) and irrigation management, which can also negatively affect environmental services. Coupled irrigation and N management practices must be developed and practiced for alleviating these challenges. Investigating crop growth and development and yield response to coupled irrigation an ...
furrowirrigation, etc ; Glycine max; alluvial aquifer; cultivars; decline; flood irrigation; forage; grain yield; irrigation water; profitability; soil types; soybeans; turf management; valleys; water use efficiency; Mississippi; Show all 16 Subjects
Abstract:
... The type of irrigation delivery system used in the mid‐southern United States can have an effect on crop–water relationships and withdrawal from the Mississippi River Valley Alluvial Aquifer. This study was conducted to determine whether converting from flood irrigation to an optimized furrow irrigation delivery system improves soybean [Glycine max (L.) Merr.] grain yield, net returns, and irrigat ...