Featured Research

from universities, journals, and other organizations

No-tillage Plus: Cover Crops Offer A Model For Sustainability In Tropical Soils

Date:
July 29, 2008
Source:
American Society of Agronomy
Summary:
Tropical soils often behave differently than temperate soils when being farmed. In tropical regions, soils lose nutrients quickly when cultivated. With food shortages looming and soil quality declining rapidly, new farming techniques are needed to make tropical and sub-tropical farming more productive and sustainable. New research from Agronomy Journal shows that no-till management combined with a winter cover crop is most effective in retaining nutrients in tropical soils.

Tropical soils often behave differently than temperate soils when being farmed. In tropical regions, soils lose nutrients quickly when cultivated. With food shortages looming and soil quality declining rapidly, new farming techniques are needed to make tropical and sub-tropical farming more productive and sustainable. New research from Agronomy Journal shows that no-till management combined with a winter cover crop is most effective in retaining nutrients in tropical soils.

An international team of scientists from Brazil, France, and the U.S. studied the impact of different cover crops, crop rotation, and tillage on soil organic carbon storage after 19 years of crop production on a tropical soil in southern Brazil.

The results, published in the July-August issue of Agronomy Journal, show that no-tillage management combined with crop rotations including winter cover crops with high amounts of crop residues returned annually to the soil, will most likely maintain soil organic carbon stocks, and most likely mimic natural forested condition for tropical and subtropical areas.

This crop management, if adopted by farmers in tropical and sub-tropical regions, can help to keep land productive and sustainable.

Scientist Bill Hargrove from Kansas State University said, “These results have broad implications for agricultural production in tropical areas in Africa, Asia, and Latin America. We can manage soils in ways that allow profitable crop production while mimicking natural vegetative conditions under which land is not degraded at accelerated rates.”


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. Calegari et al. Impact of Long-Term No-Tillage and Cropping System Management on Soil Organic Carbon in an Oxisol: A Model for Sustainability. Agronomy Journal, 2008; 100 (4): 1013 DOI: 10.2134/agronj2007.0121

Cite This Page:

American Society of Agronomy. "No-tillage Plus: Cover Crops Offer A Model For Sustainability In Tropical Soils." ScienceDaily. ScienceDaily, 29 July 2008. <www.sciencedaily.com/releases/2008/07/080728192942.htm>.
American Society of Agronomy. (2008, July 29). No-tillage Plus: Cover Crops Offer A Model For Sustainability In Tropical Soils. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2008/07/080728192942.htm
American Society of Agronomy. "No-tillage Plus: Cover Crops Offer A Model For Sustainability In Tropical Soils." ScienceDaily. www.sciencedaily.com/releases/2008/07/080728192942.htm (accessed April 23, 2014).

Share This



More Plants & Animals News

Wednesday, April 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Monkeys Are Better At Math Than We Thought, Study Shows

Monkeys Are Better At Math Than We Thought, Study Shows

Newsy (Apr. 23, 2014) A Harvard University study suggests monkeys can use symbols to perform basic math calculations. Video provided by Newsy
Powered by NewsLook.com
Raw: Leopard Bites Man in India

Raw: Leopard Bites Man in India

AP (Apr. 22, 2014) A leopard caused panic in the city of Chandrapur on Monday when it sprung from the roof of a house and charged at rescue workers. (April 22) Video provided by AP
Powered by NewsLook.com
Iowa College Finds Beauty in Bulldogs

Iowa College Finds Beauty in Bulldogs

AP (Apr. 22, 2014) Drake University hosts 35th annual Beautiful Bulldog Contest. (April 21) Video provided by AP
Powered by NewsLook.com
805-Pound Shark Caught Off The Coast Of Florida

805-Pound Shark Caught Off The Coast Of Florida

Newsy (Apr. 22, 2014) One Florida fisherman caught a 805-pound shark off the coast of Florida earlier this month. 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