Author:
Publisher: UCANR Publications
ISBN: 160107445X
Category :
Languages : en
Pages : 10
Book Description
Excess irrigation water that runs off a farm field ("tailwater") is regulated by California law, since it may be carrying sediments, nutrients, and agricultural chemicals. Learn about options for safely recycling tailwater back into your farm operation.
Reducing Runoff from Irrigated Lands: Tailwater Return Systems
Author:
Publisher: UCANR Publications
ISBN: 160107445X
Category :
Languages : en
Pages : 10
Book Description
Excess irrigation water that runs off a farm field ("tailwater") is regulated by California law, since it may be carrying sediments, nutrients, and agricultural chemicals. Learn about options for safely recycling tailwater back into your farm operation.
Publisher: UCANR Publications
ISBN: 160107445X
Category :
Languages : en
Pages : 10
Book Description
Excess irrigation water that runs off a farm field ("tailwater") is regulated by California law, since it may be carrying sediments, nutrients, and agricultural chemicals. Learn about options for safely recycling tailwater back into your farm operation.
Sizing Tailwater Recovery Systems to Utilize Runoff from Precipitation on Irrigated Lands
Author: Harry L. Manges
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 46
Book Description
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 46
Book Description
Reducing Runoff from Irrigated Lands
Author:
Publisher: UCANR Publications
ISBN: 160107431X
Category :
Languages : en
Pages : 10
Book Description
Publisher: UCANR Publications
ISBN: 160107431X
Category :
Languages : en
Pages : 10
Book Description
Sizing Tailwater Recovery Systems to Utilize Runoff from Precipitation on Irrigated Lands
Author: Liang-Tsi Mao
Publisher:
ISBN:
Category : Runoff
Languages : en
Pages : 176
Book Description
Publisher:
ISBN:
Category : Runoff
Languages : en
Pages : 176
Book Description
Sizing Tailwater Recovery Systems to Utilize Runoff from Precipitation on Irrigated Lands
Author: Harry L. Manges
Publisher:
ISBN:
Category : Irrigation water
Languages : en
Pages : 35
Book Description
Publisher:
ISBN:
Category : Irrigation water
Languages : en
Pages : 35
Book Description
Reducing Runoff from Irrigated Lands: Causes and Management of Runoff from Surface Irrigation in Orchards
Author: Lawrence J Schwankl
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Minimizing runoff from surface irrigation is a balance between adequate irrigation and tailwater runoff. This publication discusses how surface runoff can occur and management methods that can minimize the amount of water leaving a property.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Minimizing runoff from surface irrigation is a balance between adequate irrigation and tailwater runoff. This publication discusses how surface runoff can occur and management methods that can minimize the amount of water leaving a property.
Efficacy of Tailwater Recovery Systems as an Approach to Water Resource Conservation
Author: Austin R. Omer
Publisher:
ISBN:
Category :
Languages : en
Pages : 206
Book Description
Water conservation practices are being widely implemented to alleviate sediment and nutrient losses from agricultural land and unsustainable groundwater use for irrigation. Tailwater recovery (TWR) systems are conservation practices being implemented to collect and store runoff to reduce nutrient losses and provide a source of irrigation water. This collection of research is focused on evaluating TWR systems through the following actions: 1) investigate ability to reduce solids and nutrients delivery to downstream systems, 2) compare differences in solid and nutrient concentrations in surface water samples from TWR systems to irrigation water from a TWR systems; 3) determine the potential to irrigate water containing solids and nutrients; 4) quantify a water budget for TWR systems; 5) conduct cost and benefit analyses of TWR systems; and 6) analyze economic cost to reduce solids and nutrients and to retain water. Tailwater recovery systems did not significantly reduce concentrations of solids and nutrients; however, loads of solids, P, and N were significantly reduced by 43%, 32% and 44%, respectively. Mean nutrient loads per hectare available to be recycled onto the landscape were 0.20 kg ha-1 P and 0.86 kg ha-1 N. Water budget analyses show these systems save water for irrigation but were inefficient. Net present value (NPV) and benefit cost ratios were positive and >1 for producers who owned the land, but remained
Publisher:
ISBN:
Category :
Languages : en
Pages : 206
Book Description
Water conservation practices are being widely implemented to alleviate sediment and nutrient losses from agricultural land and unsustainable groundwater use for irrigation. Tailwater recovery (TWR) systems are conservation practices being implemented to collect and store runoff to reduce nutrient losses and provide a source of irrigation water. This collection of research is focused on evaluating TWR systems through the following actions: 1) investigate ability to reduce solids and nutrients delivery to downstream systems, 2) compare differences in solid and nutrient concentrations in surface water samples from TWR systems to irrigation water from a TWR systems; 3) determine the potential to irrigate water containing solids and nutrients; 4) quantify a water budget for TWR systems; 5) conduct cost and benefit analyses of TWR systems; and 6) analyze economic cost to reduce solids and nutrients and to retain water. Tailwater recovery systems did not significantly reduce concentrations of solids and nutrients; however, loads of solids, P, and N were significantly reduced by 43%, 32% and 44%, respectively. Mean nutrient loads per hectare available to be recycled onto the landscape were 0.20 kg ha-1 P and 0.86 kg ha-1 N. Water budget analyses show these systems save water for irrigation but were inefficient. Net present value (NPV) and benefit cost ratios were positive and >1 for producers who owned the land, but remained
National Irrigation Return Flow Research and Development Program
Author: James P. Law
Publisher:
ISBN:
Category : Irrigation water
Languages : en
Pages : 40
Book Description
The status of the National Irrigation Return Flow Research and Development Program is presented. Current research projects and future program development are discussed. The report represents the position of the Environmental Protection Agency (EPA) with regard to the development of effective controls on the quality of irrigation return flows. Program goals and milestones are outlined. A number of potential control measures are discussed. Improvements in the water delivery system, on-the-farm water management, and the water removal system are considered with respect to improving the quality of irrigation return flows and decreasing the degradation of receiving waters. Research and investigations are needed to evaluate the effectiveness of potential control measures. Demonstrations and educational activities will be required to overcome institutional, political, and legal constraints to water management reform.
Publisher:
ISBN:
Category : Irrigation water
Languages : en
Pages : 40
Book Description
The status of the National Irrigation Return Flow Research and Development Program is presented. Current research projects and future program development are discussed. The report represents the position of the Environmental Protection Agency (EPA) with regard to the development of effective controls on the quality of irrigation return flows. Program goals and milestones are outlined. A number of potential control measures are discussed. Improvements in the water delivery system, on-the-farm water management, and the water removal system are considered with respect to improving the quality of irrigation return flows and decreasing the degradation of receiving waters. Research and investigations are needed to evaluate the effectiveness of potential control measures. Demonstrations and educational activities will be required to overcome institutional, political, and legal constraints to water management reform.
Irrigation Return Flow Water Quality as Affected by Irrigation Water Management in the Grand Valley of Colorado
Author: Harold Ray Duke
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 140
Book Description
This study was designed to meet the specific needs of the Environmental Protection Agency consistent with the interests and research goals of the ARS. The specific objectives of the study are: (1) to identify variables needed to predict effects of deep percolation, tailwater runoff, and lateral seepage on the quality of return flows. Includes evaluation of quantity and quality of various components of field water balance. (2) To define the effect of irrigation water management on the quality of runoff and deep percolation leaving the farm unit, and determine the reduction in both water and salt losses achievable through improved irrigation technology. (3) To identify mechanisms by which the salt load of return flow water is modified after it leaves the farm unit and moves toward the Colorado River; to attempt to determine the most practicable control methods for salt accretion. (4) To evaluate the experimental methods used in the above studies with regard to their applicability in other similar irrigated river valleys.
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 140
Book Description
This study was designed to meet the specific needs of the Environmental Protection Agency consistent with the interests and research goals of the ARS. The specific objectives of the study are: (1) to identify variables needed to predict effects of deep percolation, tailwater runoff, and lateral seepage on the quality of return flows. Includes evaluation of quantity and quality of various components of field water balance. (2) To define the effect of irrigation water management on the quality of runoff and deep percolation leaving the farm unit, and determine the reduction in both water and salt losses achievable through improved irrigation technology. (3) To identify mechanisms by which the salt load of return flow water is modified after it leaves the farm unit and moves toward the Colorado River; to attempt to determine the most practicable control methods for salt accretion. (4) To evaluate the experimental methods used in the above studies with regard to their applicability in other similar irrigated river valleys.
IPM in Practice, 2nd Edition
Author: Mary Louise Flint
Publisher: University of California Agriculture and Natural Resources
ISBN: 1601077858
Category : Technology & Engineering
Languages : en
Pages : 308
Book Description
IPM in Practice features IPM strategies for weed, insect, pathogen, nematode, and vertebrate pests and provides specific information on how to set up sampling and monitoring programs in the field. This manual covers methods applicable to vegetable, field, and tree cops as well as landscape and urban situations. Designed to bring you the most up-to-date research and expertise, this manual draws on the knowledge of dozens of experts within the University of California, public agencies, and private practice.
Publisher: University of California Agriculture and Natural Resources
ISBN: 1601077858
Category : Technology & Engineering
Languages : en
Pages : 308
Book Description
IPM in Practice features IPM strategies for weed, insect, pathogen, nematode, and vertebrate pests and provides specific information on how to set up sampling and monitoring programs in the field. This manual covers methods applicable to vegetable, field, and tree cops as well as landscape and urban situations. Designed to bring you the most up-to-date research and expertise, this manual draws on the knowledge of dozens of experts within the University of California, public agencies, and private practice.