Featured Research

from universities, journals, and other organizations

Growing Corn Using Precision Agriculture

Date:
September 1, 2007
Source:
Soil Science Society of America
Summary:
Scientists in China have been attempting to answer corn producers concerns about precision agriculture, nitrogen fertilizer and their impacts on corn yield, grain quality, resource efficiency, profit and contamination reduction. Precision agriculture is defined as the usage of available technology to develop custom management of soil and crops to fit specific conditions of a small area that is within a larger unit, such as a field.

As of late, many uncertainties have been sprouting up in corn production. Researchers and producers have been wondering if precision agricultural technologies can improve crop yield and quality or reduce their variability. Farmers have been asking a number of questions from, which hybrid should I plant for best yield and quality, to does applying nitrogen fertilizer at a uniform rate produce a better crop outcome, and if not, what nitrogen fertilization strategy does produce a better crop in yield and quality?

Scientists at China Agricultural University, the Precision Agriculture Center of University of Minnesota and Mosaic Crop Nutrition have been attempting to answer those questions by investigating the potential impact of precision nitrogen management on corn yield, protein content and test weight in a new study.

Precision agriculture is defined as the usage of available technology to develop custom management of soil and crops to fit specific conditions of a small area that is within a larger unit, such as a field. This practice has revolutionized modern farming by allowing farmers to choose the best management strategy at a specific time and place in their fields.

It has the potential to increase agricultural resource use efficiency, reduce environmental contamination, and maintain or increase crop yield. Corn farmers use this application by varying the rate of fertilizer depending on differences in potential crop yield, soil type and landscape features across the field. As grain markets shift to a greater emphasis on ethanol, more attention is being directed to optimizing grain quality, where traditionally the emphasis was on quantity.

The significant variability of abundance in a given area and abundance over a period of time in crop yield and grain quality has not influenced use efficiency or profit of products made from the crops, but made it difficult for farmers to get premium prices for their products.

The study was conducted on two commercial corn fields in eastern Illinois in 2001 and 2003 involving two corn hybrids and five different N fertilizer application rates across the landscape. Nitrogen response of corn yield and quality were fitted at different within-field locations, and the potential impacts of different N management strategies were evaluated against a uniform rate of N application that is a common farmer's practice in the region.

The results indicated that one hybrid was found to have higher yield, quality and distribution to suppliers than the other hybrid under either a uniform or varied nitrogen application. Results also showed that varying nitrogen applied to localized within-field conditions and hybrid differences could either increase corn yield with similar or higher nitrogen rates or maintain yield with less nitrogen application, without any significant improvement of grain quality.

The results from this study are published in the September-October 2007 issue of the Soil Science Society of America Journal.The study was funded by Cargill Crop Nutrition (now Mosaic Company), Cargill Dry Corn Ingredients and Pioneer Hi-Bred International, Inc.


Story Source:

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


Cite This Page:

Soil Science Society of America. "Growing Corn Using Precision Agriculture." ScienceDaily. ScienceDaily, 1 September 2007. <www.sciencedaily.com/releases/2007/08/070831123423.htm>.
Soil Science Society of America. (2007, September 1). Growing Corn Using Precision Agriculture. ScienceDaily. Retrieved September 16, 2014 from www.sciencedaily.com/releases/2007/08/070831123423.htm
Soil Science Society of America. "Growing Corn Using Precision Agriculture." ScienceDaily. www.sciencedaily.com/releases/2007/08/070831123423.htm (accessed September 16, 2014).

Share This



More Plants & Animals News

Tuesday, September 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

AFP (Sep. 16, 2014) Since the arrival of Ebola in Ivory Coast, Ivorians have been abandoning their pets, particularly monkeys, in the fear that they may transmit the virus. Duration: 00:47 Video provided by AFP
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