Assessing Irrigation Scheduling Using Mississippi Irrigation Scheduling Tool (MIST) and Soil Moisture Sensors PDF Download
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Author: Hazel Buka
Publisher:
ISBN:
Category :
Languages : en
Pages : 61
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Book Description
By using the Soil Conservation Service (SCS) “polynomial” method for corn in the Mississippi Irrigation Scheduling Tool (MIST), the total number of irrigations required during the growing season can be reduced depending on the variety, growing degree days required to reach maturity, and the length of the growing season. Results showed that even though the SCS method called for irrigations earlier in the season, the method did not trigger irrigation events after the crop reached physiological maturity. In addition, although changing the timing of model initiation (planting vs emergence) was not important on the total crop water use, it may have other benefits. Lastly, Watermark 200SS sensors generally did not trigger similar irrigation events, especially around the mid-season, but shallower sensors somewhat matched and showed similar trends with the MIST modeled results and irrigation records. Therefore, using MIST with sensors may be beneficial when making precise irrigation scheduling decisions.
Author: Hazel Buka
Publisher:
ISBN:
Category :
Languages : en
Pages : 61
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Book Description
By using the Soil Conservation Service (SCS) “polynomial” method for corn in the Mississippi Irrigation Scheduling Tool (MIST), the total number of irrigations required during the growing season can be reduced depending on the variety, growing degree days required to reach maturity, and the length of the growing season. Results showed that even though the SCS method called for irrigations earlier in the season, the method did not trigger irrigation events after the crop reached physiological maturity. In addition, although changing the timing of model initiation (planting vs emergence) was not important on the total crop water use, it may have other benefits. Lastly, Watermark 200SS sensors generally did not trigger similar irrigation events, especially around the mid-season, but shallower sensors somewhat matched and showed similar trends with the MIST modeled results and irrigation records. Therefore, using MIST with sensors may be beneficial when making precise irrigation scheduling decisions.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
By using the Soil Conservation Service (SCS) polynomial method for corn in the Mississippi Irrigation Scheduling Tool (MIST), the total number of irrigations required during the growing season can be reduced depending on the variety, growing degree days required to reach maturity, and the length of the growing season. Results showed that even though the SCS method called for irrigations earlier in the season, the method did not trigger irrigation events after the crop reached physiological maturity. In addition, although changing the timing of model initiation (planting vs emergence) was not important on the total crop water use, it may have other benefits. Lastly, Watermark 200SS sensors generally did not trigger similar irrigation events, especially around the mid-season, but shallower sensors somewhat matched and showed similar trends with the MIST modeled results and irrigation records. Therefore, using MIST with sensors may be beneficial when making precise irrigation scheduling decisions.
Author: Jennifer Laffan
Publisher: NSW Agriculture
ISBN: 1742568068
Category : Reference
Languages : en
Pages : 96
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Book Description
Scheduling irrigation is about planning when and how much water to apply to a crop to achieve crop production or a particular quality. The principles of scheduling water apply to all crops, however the critical timing, methods and techniques can vary with the crop. This book is about: · the ways in which specific crops respond to stress and the effects of the timing and degree of stress and the growth stage of the crop · evapotranspiration (ET) and crop water use to schedule irrigations · developing an irrigation schedule · terms used to describe the amount of water available to a crop · soil moisture probes and where to locate them · water quality issues to consider. TABLE OF CONTENTS Chapter 1: Introduction Chapter 2: Safety Chapter 3: Environmental Impacts Of Irrigation Chapter 4: The Need For Water Varies Chapter 5: Factors Affecting Evapotranspiration Chapter 6: Scheduling Irrigations Chapter 7: How Soil Holds Water Chapter 8: Data From Soil Moisture Probes Chapter 9: Do You Need A Calibrated Probe? Chapter 10: Implementing A Deficit Strategy Chapter 11: Placement Of Soil Probes Chapter 12: Irrigation Water Quality Appendix 1: Determining PAWC Appendix 2: Determining RAW From Soil Texture Appendix 3: Determining Starting And Final Soil Moisture Appendix 4: Calibration Of Soil Moisture Monitoring Tools Appendix 5: IrriSAT – Weather based scheduling tool Further Information
Author: Blaine Hanson
Publisher: University of California, Agriculture and Natural Resources
ISBN: 9781601074812
Category : Technology & Engineering
Languages : en
Pages : 58
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Book Description
Monitoring soil moisture is an alternate method to water-based balance methods of managing irrigation water. Using this method you can "see" what is going on in the soil and determine answers to some key irrigation management questions: Did enough water infiltrate the soil? Is too much water being applied? What is the water uptake pattern of the roots? When should irrigation take place? What was the depth reached by the irrigation? Includes 24 figures and 7 tables, metric conversions, and an appendix of typical root depths. One of a series of water management handbooks prepared by the UC Irrigation Program.
Author:
Publisher:
ISBN:
Category : Irrigation efficiency
Languages : en
Pages : 120
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Book Description
Author: Abdelfettah Berrada
Publisher:
ISBN:
Category : Irrigation efficiency
Languages : en
Pages : 38
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Book Description
Author: Blaine Hanson
Publisher: UCANR Publications
ISBN: 1601078870
Category : Technology & Engineering
Languages : en
Pages : 220
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Book Description
his handy guide will help you schedule your irrigation needs so you can make every drop count. Inside you'll find sections on the relationship between crop evapotranspiration and yield, how to measure crop evapotranspiration by measuring soil moisture, and how to interpret those readings. One of a series of water management handbooks prepared by the University of California Irrigation Program.
Author: Ethan Gage Cartwright
Publisher:
ISBN:
Category :
Languages : en
Pages : 244
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Book Description
Irrigation has the potential to significantly mitigate downside production risk in agriculture by optimizing the distribution of irrigation to satisfy crop needs. Additionally, soil-moisture sensors (SMS) may improve water-use efficiency (WUE) by improving irrigation scheduling and preventing overwatering compared to more rudimentary irrigation scheduling techniques. These benefits of SMS are important in the U.S. state of Georgia, where recent drought events and ongoing litigation concerning water use in the Apalachicola-Chattahoochee-Flint (ACF) River Basin have increased producer and public concern about future water availability. This research evaluates producer and farm characteristics related to the utilization of SMS and assesses the impact of SMS-utilization on producer perceptions of on-farm use as a way to inform government and extension programming aimed at improving WUE.
Author: Stephen Mark Thomas
Publisher:
ISBN:
Category : Irrigation farming
Languages : en
Pages : 133
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Book Description
Author: Michael Thomas Plumblee
Publisher:
ISBN:
Category :
Languages : en
Pages : 80
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Book Description
Through proper irrigation scheduling and management of damaged cotton, sustainable agricultural withdrawal from the Mississippi River Valley Alluvial Aquifer can be achieved while maximizing net returns. This research was conducted to 1) develop a sensor based irrigation strategy that maximized cotton lint yield and quality, irrigation, and water use efficiency (IWUE) and 2) quantify the effects of timing of damage, intensity, and foliar N on cotton growth and development. Lint yield, fiber quality, and IWUE were optimized using a season-long irrigation threshold of -90 kPa and irrigation terminated 2-weeks before cracked boll. Regardless of cotton variety (early- or latematuring) or timing of damage, plant height, number of nodes, and lint yield were negatively correlated with the intensity of damage. Moreover, the application of foliar nitrogen to damaged cotton had no effect on plant growth, lint yield, or fiber quality, regardless of N application timing. These data indicate that lint yield, and fiber quality are optimized when cotton varieties are selected based on yield potential, irrigated at -90 kPa threshold, and irrigations are terminated two weeks before cracked boll.
