Results 171 to 180 of about 2,148 (214)

Evaluating Furrow and Corrugation Irrigation

Journal of the Irrigation and Drainage Division, 1959
Many farm irrigation systems are poorly adapted to soils and topography; wasteful use of water and irreparable land damage from soil erosion; principles of furrow and corrugation irrigation, and simplified procedure for making tentative or preliminary evaluations are presented.
openaire   +1 more source

Economic Optimization of Furrow Irrigation

Journal of Irrigation and Drainage Engineering, 1997
A seasonal furrow irrigation model was constructed from soil moisture, kinematic-wave hydraulic, and economic optimization models to study the effects of heterogeneity in water balance, soil water holding properties and rooting depth, and infiltration functions on furrow irrigation design (flow rate and cutoff time), bean yield, and net return to water.
N. S. Raghuwanshi, W. W. Wallender
openaire   +1 more source

Comparison of Deficit Irrigation Management in the Method of Alternate Furrow Irrigation, Furrow Irrigation and Tape Drip Irrigation for Potato Crop

Sustainable Agricultural Science Research,4(2 ...
Haghighati, Bijan, Sayadi shahraki, Atefeh   +1 more
openaire   +1 more source

Dimensionless Formulation of Furrow Irrigation

Journal of Irrigation and Drainage Engineering, 1985
The equations governing the flow of water in irrigation furrows are put in nondimensional form by expressing each variable therein in ratio to an appropriate reference variable. Two systems of reference varibles are considered, one based on normal depth in the given furrow geometry at the given inflow, the other on the given inflow and cutoff time. The
openaire   +1 more source

Muskingum Model for Furrow Irrigation

Journal of Irrigation and Drainage Engineering, 1988
A mathematical model, based on volume balance and Muskingum type storage‐discharge relation, is presented for design and evaluation of furrow irrigation systems. Three field data sets from Colorado farms are used to test the model. The Muskingum model is simple and found to effectively simulate the hydraulics of every phase of furrow irrigation.
Vijay P. Singh, Yu‐Cheng He
openaire   +1 more source

Optimization of the furrow irrigation efficiency

Global NEST Journal, 2013
Furrow irrigation is used for row crops. S.C.S., based on a great number of field experiments, under different circumstances and soil families, has developed design equations for furrow irrigation. These equations have been used for steady flow rate or for flow rate with one reduction when the water reaches the end of the furrow.
openaire   +1 more source

Furrow irrigation design for vertisols

Agricultural Water Management, 1984
Abstract Due to the particular characteristics of vertisols, furrow irrigation on these soils shows features which differ from those on normal soils. The initial water intake in the dry, cracked soil is extremely high, while by the time the soil has been fully replenished, the infiltration rate has fallen to a negligible low value, making the ...
openaire   +1 more source

Simulation of furrow irrigation practices (SOFIP): a field-scale modelling of water management and crop yield for furrow irrigation

Irrigation Science, 2005
Because of the spatial and temporal variabilities of the advance infiltration process, furrow irrigation investigations should not be limited to a single furrow irrigation event when using a modelling approach. The paper deals with the development and application of simulation of furrow irrigation practices (SOFIP), a model used to analyse furrow ...
Mailhol, J.C., Ruelle, Pierre, Popova, Z.   +2 more
openaire   +1 more source

The Role of Irrigation and Wastewater: Comparison of Subsurface Drip Irrigation and Furrow Irrigation

2003, Las Vegas, NV July 27-30, 2003, 2003
This study was conducted to compare two different irrigation systems, subsurface drip irrigation (SDI) and furrow irrigation (FI) in terms of water use efficiency as well as viral contamination and survival when tertiary effluent is used for irrigation water. The effluent was injected with bacteriophages of PRD1 and MS2.
null Inhong Song, null Scott Stine, null Jose Pimentel, null Christopher Y. Choi, null Charles Gerba   +4 more
openaire   +1 more source

Comparison and selection of furrow irrigation models

Agricultural Water Management, 1984
Abstract The capability of hydrodynamic, zero-inertia, kinematic-wave and volume-balance models to predict advance and recession phases in furrow irrigation were compared against two sets of field data, providing a wide range of soil conditions and field slopes.
E.A. Holzapfel, M.A. Mariño, J. Chavez-Morales   +2 more
openaire   +1 more source