The Green Side of the Water Cycle: New Advances in the Study of Plant Water Dynamics
The Green Side of the Water Cycle New Advances in the Study of Plant Water Dynamics
Source: http://www.frontiersin.org/
Precision irrigation is becoming a crucial management approach for environmentally and
economically sustainable fruit tree production. The vast majority of fruit crops need irrigation
supply as rainfall does not match crop water requirements (Stöckle et al., 2011; Snyder, 2017).
In most cases of fruit crops cultivated in dry areas, rainfed agriculture is not sustainable and
deficit irrigation (DI) is a reasonable strategy to improve water use efficiency. Fereres and
Soriano (2007) highlighted the benefits of regulated DI as a strategy to reduce agricultural
water use. The main purpose of regulated DI is to reduce irrigation at specific developmental
stages of the crop with no or limited effects on yield. The use of DI in different phenological
stages of fruit crops started in the 1980s by Chalmers et al. (1981, 1986).
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Irrigation Engineering
Purpose of Irrigation
Some of the main purposes of irrigation are enlisted below:
1. To supply essential moisture for plant growth
2. Transportation of fertilizers (Fertigation)
3. To leach or dilute salts in the soil
4. To help in field preparation, dust control, etc.
5. Other benefits of irrigation include cooling the soil and atmosphere to create a more favorable environment for crop growth and frost control.
Irrigation Engineering
Purpose of Irrigation
Some of the main purposes of irrigation are enlisted below:
1. To supply essential moisture for plant growth
2. Transportation of fertilizers (Fertigation)
3. To leach or dilute salts in the soil
4. To help in field preparation, dust control, etc.
5. Other benefits of irrigation include cooling the soil and atmosphere to create a more favorable environment for crop growth and frost control.
Optimizing Plant Water Use Efficiency for a Sustainable Environment
The rising shortage of water resources in crop-producing regions worldwide and the need for irrigation optimisation call for sustainable water savings. The allocation of irrigation water will be an ever-increasing source of pressure because of vast agricultural demands under changing climatic conditions. Consequently, irrigation has to be closely linked with water-use efficiency with the aim of boosting productivity and improving food quality, singularly in those regions where problems of water shortages or collection and delivery are widespread. The present Special Issue (SI) showcases 19 original contributions, addressing water-use efficiency in the context of sustainable irrigation management to meet water scarcity conditions. These papers cover a wide range of subjects including (i) interaction mineral nutrition and irrigation in horticultural crops, (ii) sustainable irrigation in woody fruit crops, (iii) medicinal plants, (iv) industrial crops, and (v) other topics devoted to remote sensing techniques and crop water requirements, genotypes for drought tolerance, and agricultural management.
Optimizing Plant Water Use Efficiency for a Sustainable Environment
The rising shortage of water resources in crop-producing regions worldwide and the need for irrigation optimisation call for sustainable water savings. The allocation of irrigation water will be an ever-increasing source of pressure because of vast agricultural demands under changing climatic conditions. Consequently, irrigation has to be closely linked with water-use efficiency with the aim of boosting productivity and improving food quality, singularly in those regions where problems of water shortages or collection and delivery are widespread. The present Special Issue (SI) showcases 19 original contributions, addressing water-use efficiency in the context of sustainable irrigation management to meet water scarcity conditions. These papers cover a wide range of subjects including (i) interaction mineral nutrition and irrigation in horticultural crops, (ii) sustainable irrigation in woody fruit crops, (iii) medicinal plants, (iv) industrial crops, and (v) other topics devoted to remote sensing techniques and crop water requirements, genotypes for drought tolerance, and agricultural management.
Soil Water and Agronomic Productivity
The need for an efficient use of soil water is.also enhanced by the lack of availability of freshwater
supply for supplemental irrigation. Global water use for agriculture,.as a percentage of the total water
use,was 81.4% in 1900, 72.3% in 1950, 68.2% in 1975, and 56.7% in 2000. Global water use for urban
purposes (km 3/year) was 20 in 1900, 60 in 1950, 150 in 1975, and 440 in 2000. Similarly, global water
use (km 3/year) for industrial purposes was 30 in 1900, 190 in 1950, 630 in 1975, and 1900 in 2000
Availability of water for irrigation is also constrained by the diversion to fossil fuel production
and eutrophication/pollution of water resources. One liter of bioethanol production requires 3500L
of fresh water. Thus, there is a strong and prime need for conserving, recycling, and improving soil-
water resources to meet the food demands of the growing world population.
supply for supplemental irrigation. Global water use for agriculture,.as a percentage of the total water
use,was 81.4% in 1900, 72.3% in 1950, 68.2% in 1975, and 56.7% in 2000. Global water use for urban
purposes (km 3/year) was 20 in 1900, 60 in 1950, 150 in 1975, and 440 in 2000. Similarly, global water
use (km 3/year) for industrial purposes was 30 in 1900, 190 in 1950, 630 in 1975, and 1900 in 2000
Availability of water for irrigation is also constrained by the diversion to fossil fuel production
and eutrophication/pollution of water resources. One liter of bioethanol production requires 3500L
of fresh water. Thus, there is a strong and prime need for conserving, recycling, and improving soil-
water resources to meet the food demands of the growing world population.
Soil Water and Agronomic Productivity
The need for an efficient use of soil water is.also enhanced by the lack of availability of freshwater
supply for supplemental irrigation. Global water use for agriculture,.as a percentage of the total water
use,was 81.4% in 1900, 72.3% in 1950, 68.2% in 1975, and 56.7% in 2000. Global water use for urban
purposes (km 3/year) was 20 in 1900, 60 in 1950, 150 in 1975, and 440 in 2000. Similarly, global water
use (km 3/year) for industrial purposes was 30 in 1900, 190 in 1950, 630 in 1975, and 1900 in 2000
Availability of water for irrigation is also constrained by the diversion to fossil fuel production
and eutrophication/pollution of water resources. One liter of bioethanol production requires 3500L
of fresh water. Thus, there is a strong and prime need for conserving, recycling, and improving soil-
water resources to meet the food demands of the growing world population.
supply for supplemental irrigation. Global water use for agriculture,.as a percentage of the total water
use,was 81.4% in 1900, 72.3% in 1950, 68.2% in 1975, and 56.7% in 2000. Global water use for urban
purposes (km 3/year) was 20 in 1900, 60 in 1950, 150 in 1975, and 440 in 2000. Similarly, global water
use (km 3/year) for industrial purposes was 30 in 1900, 190 in 1950, 630 in 1975, and 1900 in 2000
Availability of water for irrigation is also constrained by the diversion to fossil fuel production
and eutrophication/pollution of water resources. One liter of bioethanol production requires 3500L
of fresh water. Thus, there is a strong and prime need for conserving, recycling, and improving soil-
water resources to meet the food demands of the growing world population.
Soil Water Flow And Irrigated Soil Water Balance In Response To Powder River Basin Coalbed Methane Product Water
In the soil columns experiment, A and B horizon materials from sandy loam, silt loam, and clay loam soils were pre-treated with water having salinity and sodicity typical of PRB CBM water or of Powder River (PR) water currently used for irrigation in the basin. Tension infiltrometer measurements were used to determine infiltration flux, first using pre-treatment water, and subsequently deionized (DI) water, simulating rainwater. Measurements were compared by pre-treatment water, horizon, and soil type. Under pre-treatment water testing, the sandy loam and clay loam soils pre-treated with CBM water exhibited smaller infiltration flux values than when pre-treated with PR water. Only the sandy loam soil showed a greater decrease in infiltration flux with DI water on soils pre-treated with CBM relative to PR water pre-treated soils. There was no difference in infiltration flux decrease with DI water between A and B horizon soils, or between smectite and non-smectite soils.
Soil Water Flow And Irrigated Soil Water Balance In Response To Powder River Basin Coalbed Methane Product Water
In the soil columns experiment, A and B horizon materials from sandy loam, silt loam, and clay loam soils were pre-treated with water having salinity and sodicity typical of PRB CBM water or of Powder River (PR) water currently used for irrigation in the basin. Tension infiltrometer measurements were used to determine infiltration flux, first using pre-treatment water, and subsequently deionized (DI) water, simulating rainwater. Measurements were compared by pre-treatment water, horizon, and soil type. Under pre-treatment water testing, the sandy loam and clay loam soils pre-treated with CBM water exhibited smaller infiltration flux values than when pre-treated with PR water. Only the sandy loam soil showed a greater decrease in infiltration flux with DI water on soils pre-treated with CBM relative to PR water pre-treated soils. There was no difference in infiltration flux decrease with DI water between A and B horizon soils, or between smectite and non-smectite soils.
Modern Fruit Industry
The effectiveness on several fruits by the application of alternative methods against fungi is summarized in the present chapter. Several investigations have reported the efficacy of these technologies for controlling fungal infections. Currently, high post-harvest loses have been reported due to several factors such as inefficient management, lack of training for farmers, and problems with appropriate conditions for storage of fruits and vegetables. Even now, in many countries, post-harvest disease control is led by the application of chemical fungicides.
Modern Fruit Industry
The effectiveness on several fruits by the application of alternative methods against fungi is summarized in the present chapter. Several investigations have reported the efficacy of these technologies for controlling fungal infections. Currently, high post-harvest loses have been reported due to several factors such as inefficient management, lack of training for farmers, and problems with appropriate conditions for storage of fruits and vegetables. Even now, in many countries, post-harvest disease control is led by the application of chemical fungicides.
Soil Hydrology for a Sustainable Land Management
Soil hydrology determines the water–soil–plant interactions in the Earth’s system because porous medium acts as an interface within the atmosphere and lithosphere; regulates main processes such as runoff discharge, aquifer recharge, movement of water, and solutes into the soil; and ultimately the amount of water retained and available for plants growth. Soil hydrology can be strongly affected by land management. Therefore, investigations aimed at assessing the impact of land management changes on soil hydrology are necessary, especially to optimize water resources. This Special Issue collects 12 original contributions addressing the state-of-the-art advances in soil hydrology for sustainable land management.
These contributions cover a wide range of topics including (i) the effects of land use change, (ii) water use efficiency, (iii) erosion risk, (iv) solute transport, and (v) new methods and devices for improved characterization of soil physical and hydraulic properties. They include both field and laboratory experiments as well as modelling studies. Different spatial scales, i.e., from field to regional scales, and a wide range of geographic regions are also covered. The collection of these manuscripts presented in this Special Issue provides a relevant knowledge contribution for effective saving water resources and sustainable land management.
Soil Hydrology for a Sustainable Land Management
Soil hydrology determines the water–soil–plant interactions in the Earth’s system because porous medium acts as an interface within the atmosphere and lithosphere; regulates main processes such as runoff discharge, aquifer recharge, movement of water, and solutes into the soil; and ultimately the amount of water retained and available for plants growth. Soil hydrology can be strongly affected by land management. Therefore, investigations aimed at assessing the impact of land management changes on soil hydrology are necessary, especially to optimize water resources. This Special Issue collects 12 original contributions addressing the state-of-the-art advances in soil hydrology for sustainable land management.
These contributions cover a wide range of topics including (i) the effects of land use change, (ii) water use efficiency, (iii) erosion risk, (iv) solute transport, and (v) new methods and devices for improved characterization of soil physical and hydraulic properties. They include both field and laboratory experiments as well as modelling studies. Different spatial scales, i.e., from field to regional scales, and a wide range of geographic regions are also covered. The collection of these manuscripts presented in this Special Issue provides a relevant knowledge contribution for effective saving water resources and sustainable land management.
Chemigation Backflow Prevention
Introduction
The purpose of this guide is to familiarize those injecting pesticides into irrigation systems with the federal government's equipment requirements on the pesticide label.
The guide will cover the legal requirements as well as discuss practical ways to meet the requirements.
Chemigation Backflow Prevention
Introduction
The purpose of this guide is to familiarize those injecting pesticides into irrigation systems with the federal government's equipment requirements on the pesticide label.
The guide will cover the legal requirements as well as discuss practical ways to meet the requirements.
Watering Floodplain Wetlands in the Murray–Darling Basin to Benefit Native Fish A Discussion with Managers
This report describes the content and outcomes of a workshop entitled ‘Watering Floodplain Wetlands of the Murray–Darling Basin for Fish: A Discussion with Managers’ held on 5 March 2008 at Wonga Wetlands in Albury (NSW). The workshop was part of a four-year, National Water Commission funded project aimed at optimizing wetland environmental watering protocols to maximize benefits to native fish populations.
Watering Floodplain Wetlands in the Murray–Darling Basin to Benefit Native Fish A Discussion with Managers
This report describes the content and outcomes of a workshop entitled ‘Watering Floodplain Wetlands of the Murray–Darling Basin for Fish: A Discussion with Managers’ held on 5 March 2008 at Wonga Wetlands in Albury (NSW). The workshop was part of a four-year, National Water Commission funded project aimed at optimizing wetland environmental watering protocols to maximize benefits to native fish populations.
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