Effects of Irrigation Scheduling Using Soil Moisture Sensors, Irrigation Termination, and Simulated Damage on Plant Development and Yield on Cotton (Gossypium Hirsutum L.) in the Mid-South PDF Download
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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.
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.
Author:
Publisher:
ISBN:
Category : Irrigation efficiency
Languages : en
Pages : 120
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Book Description
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: Marvin E. Jensen
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 104
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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: R. Troy Peters
Publisher:
ISBN:
Category : Irrigation farming
Languages : en
Pages : 6
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Book Description
Good irrigation water management will increase yields, improve crop quality, conserve water, save energy, decrease fertilizer requirements, and reduce non-point source pollution. Using soil moisture measurements is one of the best and simplest ways to get feedback to help make improved water management decisions. However, the installation, calibration, and interpretation of the data from these instruments is often overwhelming or not deemed valuable for most busy growers. Here's an attempt to provide practical recommendations for using these sensors.
Author: Timothy Coolong
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 0
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Book Description
Numerous tools have been developed with the aim of improving irrigation scheduling. Some methods involve using soil moisture sensors and irrigating based on soil moisture thresholds. Others may be based on evapotranspiration models. More novel techniques include irrigating based on the water status within the target crop. However, growers have been reluctant to adopt many of these irrigation scheduling methods because they may be too cumbersome to use, require specialized equipment, or are perceived as too risky compared to traditional methods. Recently, smartphone applications have been developed that schedule irrigation based on crop coefficients and real-time weather data. Called the SmartIrrigation,Ѣ application (smartirrigationapps.org), these tools have the potential to aid farmers in conserving water and nutrients, while maintaining crop yields. These applications were developed by the University of Florida and include such crops as citrus (Citrus spp.), cotton (Gossypium hirsutum), turfgrass, blueberries (Vaccinium darrowii), and several vegetables. These applications can be downloaded for free by the public and utilize real-time data from nearby weather stations in Georgia and Florida. To determine the efficacy of the new SmartIrrigation,Ѣ applications for watermelons and tomatoes, trials were conducted over 2¬†years in southern Georgia, USA.
Author: W.B. DeOreo
Publisher:
ISBN:
Category :
Languages : en
Pages : 45
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Book Description
Author: Sally L. Wallace
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 370
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Book Description
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.
