Featured Research

from universities, journals, and other organizations

Precision Irrigation Built Into Sprinkler Booms Controls Water Usage, Optimizes Crop Growth

Date:
April 24, 2008
Source:
US Department of Agriculture
Summary:
A system that turns irrigation water on and off automatically based on leaf temperature is being developed by Agricultural Research Service soil scientists. They are developing time-temperature threshold technology that is based in part on the discovery that plants grow best at certain narrow temperature ranges that vary by crop species.

Agricultural engineers Susan O'Shaughnessy and Nolan Clark adjust the field of view for wireless infrared thermometers mounted on a center pivot irrigation system. The wireless sensors are used to measure crop canopy temperature for indications of water stress.
Credit: Photo by Peggy Greb

A system that turns irrigation water on and off automatically based on leaf temperature is being developed by Agricultural Research Service (ARS) soil scientist Steven Evett and colleagues in Texas.

Evett, a soil scientist at Bushland, Texas, and cooperators are developing time-temperature threshold (TTT) technology that is based in part on a discovery by Evett's colleagues at Lubbock, Texas, that plants grow best at certain narrow temperature ranges that vary by crop species.

Later developments by Evett and his colleagues led to invention of an irrigation control system that uses feedback from the crop, in terms of leaf temperatures, to control irrigation and crop water use efficiency.

Evett's colleague Susan O'Shaughnessy, an agricultural engineer at the ARS Soil and Water Management Research Unit at Bushland, has developed wireless infrared thermometers mounted on center pivot irrigation arms as well as in the field. She is also integrating sensors that can help determine whether to skip watering parts of a field because plants are suffering from disease rather than drought or because no plants have survived in that part of the field.

Ultimately, she and Evett will seek a cooperative research and development agreement with a center pivot manufacturing company that can build the sensors and control system into their equipment.

This research is part of the Ogallala Aquifer Program started in 2004, a partnership between ARS and the Ogallala region's universities. The Ogallala Aquifer underlies eight states from Texas to South Dakota and is one of the world's major aquifers. The goal of the Ogallala Aquifer Program is to protect the towns and their livelihoods, including agricultural industries, by stopping the depletion of the aquifer.

Water availability is key to farming in the Ogallala region. Automated irrigation systems are seen as one major way to move towards sustainable use of the aquifer because they can reduce water use while enhancing profitability due to the reduction in pumping costs.


Story Source:

The above story is based on materials provided by US Department of Agriculture. Note: Materials may be edited for content and length.


Cite This Page:

US Department of Agriculture. "Precision Irrigation Built Into Sprinkler Booms Controls Water Usage, Optimizes Crop Growth." ScienceDaily. ScienceDaily, 24 April 2008. <www.sciencedaily.com/releases/2008/04/080420111817.htm>.
US Department of Agriculture. (2008, April 24). Precision Irrigation Built Into Sprinkler Booms Controls Water Usage, Optimizes Crop Growth. ScienceDaily. Retrieved August 21, 2014 from www.sciencedaily.com/releases/2008/04/080420111817.htm
US Department of Agriculture. "Precision Irrigation Built Into Sprinkler Booms Controls Water Usage, Optimizes Crop Growth." ScienceDaily. www.sciencedaily.com/releases/2008/04/080420111817.htm (accessed August 21, 2014).

Share This




More Plants & Animals News

Thursday, August 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Possible Ebola Patient in Isolation at California Hospital

Possible Ebola Patient in Isolation at California Hospital

Reuters - US Online Video (Aug. 20, 2014) — A patient who may have been exposed to the Ebola virus is in isolation at the Kaiser Permanente South Sacramento Medical Center. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Flower Power! Dandelions Make Car Tires?

Flower Power! Dandelions Make Car Tires?

Reuters - Business Video Online (Aug. 20, 2014) — Forget rolling on rubber, could car drivers soon be traveling on tires made from dandelions? Teams of scientists are racing to breed a type of the yellow flower whose taproot has a milky fluid with tire-grade rubber particles in it. As Joanna Partridge reports, global tire makers are investing millions in research into a new tire source. Video provided by Reuters
Powered by NewsLook.com
Unsustainable Elephant Poaching Killed 100K In 3 Years

Unsustainable Elephant Poaching Killed 100K In 3 Years

Newsy (Aug. 20, 2014) — Poachers have killed 100,000 elephants between 2010 and 2012, as the booming ivory trade takes its toll on the animals in Africa. Video provided by Newsy
Powered by NewsLook.com
Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Newsy (Aug. 19, 2014) — Scientists have developed a new device that mimics the way octopuses blend in with their surroundings to hide from dangerous predators. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins