Featured Research

from universities, journals, and other organizations

Analyzing agroforestry management

Date:
June 28, 2011
Source:
American Society of Agronomy
Summary:
Scientists have developed a model to help manage agroforestry systems. Improved diagnosis of appropriate nutrient usage will help increase yields and also reduce financial and environmental costs. To achieve this, a management support system that allows for site-specific evaluation of nutrient-production imbalances is needed.

Shade tree light levels in an agroforestry system play a significant role in production and nutrient cycling.
Credit: Image courtesy of American Society of Agronomy

The evaluation of both nutrient and non-nutrient resource interactions provides information needed to sustainably manage agroforestry systems. Improved diagnosis of appropriate nutrient usage will help increase yields and also reduce financial and environmental costs. To achieve this, a management support system that allows for site-specific evaluation of nutrient-production imbalances is needed.

Related Articles


Scientists at the University of Toronto and the University of Saskatchewan have developed a conceptual framework to diagnosis nutrient and non-nutrient interactions in agroecosystems. This work was partially financed by the Natural Science and Engineering Research Council of Canada and The Norwegian Agency for Development Cooperation through the PANTIL program at SUA.

The scientists revisited vector analysis, a model used to see changes in yield and nutritional response in a single graph. The result is an outline for diagnosing these interactions. The complete results from this study can be found in the special issue on Agroforestry and Environmental Quality from the Journal of Environmental Quality.

The current model does not consider non-nutrient resource effects on growth, such as light conditions and soil moisture content. In this study, scientists analyzed data from field trials of cocoa and pigeon pea intercropping systems using vector analysis. They quantified nutrient and non-nutrient interactions, illustrating the application of this analysis for managing agroforestry systems.

Using their advanced model, scientists were able to increase the yields of both cocoa and pigeon pea rotated with maize. Additionally, phosphorus concentrations declined, reducing environmental impact. These improvements were attributed to better light conditions for the cocoa and alleviated soil moisture competition for the pigeon pea crop.

These results helped in the production of an agroforestry management system that considers both nutrient and non-nutrient interactions. This advancement allows for an accurate way to correct nutrient imbalances, and helps sustain productivity while reducing environmental risks.

Scientist Marney Isaac explains, "Linking crop performance to appropriate nutrient application, as well as quantifying existing nutrient cycles and interactions, will not only have the economic advantage of increasing yields but will also diminish financial and environmental costs."

Further research is currently being conducted at the University of Toronto and the University of Saskatchewan to gather data on nutrient and non-nutrient interactions in agroforestry/multispecies systems to advance diagnostic techniques.


Story Source:

The above story is based on materials provided by American Society of Agronomy. Note: Materials may be edited for content and length.


Journal Reference:

  1. Marney E. Isaac, Anthony A. Kimaro. Diagnosis of Nutrient Imbalances with Vector Analysis in Agroforestry Systems. Journal of Environment Quality, 2011; 40 (3): 860 DOI: 10.2134/jeq2010.0144

Cite This Page:

American Society of Agronomy. "Analyzing agroforestry management." ScienceDaily. ScienceDaily, 28 June 2011. <www.sciencedaily.com/releases/2011/06/110628132601.htm>.
American Society of Agronomy. (2011, June 28). Analyzing agroforestry management. ScienceDaily. Retrieved April 18, 2015 from www.sciencedaily.com/releases/2011/06/110628132601.htm
American Society of Agronomy. "Analyzing agroforestry management." ScienceDaily. www.sciencedaily.com/releases/2011/06/110628132601.htm (accessed April 18, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Saturday, April 18, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Nervous Return to Everest a Year After Deadly Avalanche

Nervous Return to Everest a Year After Deadly Avalanche

AFP (Apr. 18, 2015) In the Himalayan town of Lukla, excitement mingles with fear as mountaineers make their way up to Everest a year after an avalanche killed 16 guides and triggered an unprecedented shut-down of the world&apos;s highest peak. Duration: 00:37 Video provided by AFP
Powered by NewsLook.com
L.A. Water Cops Remind Residents of Water Conservation

L.A. Water Cops Remind Residents of Water Conservation

Reuters - US Online Video (Apr. 18, 2015) "Water cops" in Los Angeles remind the public about water conservation methods amid California&apos;s prolonged drought. Julie Noce reports. Video provided by Reuters
Powered by NewsLook.com
Planet Defence Conference Tackles Asteroid Threat

Planet Defence Conference Tackles Asteroid Threat

AFP (Apr. 17, 2015) Scientists gathered at a European Space Agency (ESA) facility outside Rome this week for the Planetary Defence Conference 2015 to discuss how to tackle the potential threat from asteroids hitting Earth. Duration: 00:54 Video provided by AFP
Powered by NewsLook.com
Gulf Scarred, Resilient 5 Years After BP Spill

Gulf Scarred, Resilient 5 Years After BP Spill

AP (Apr. 17, 2015) Five years after the Deepwater Horizon spill in the Gulf of Mexico, splotches of oil still dot the seafloor and wads of tarry petroleum-smelling material hide in pockets in the marshes of Barataria Bay. (April 17) Video provided by AP
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:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

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