Quick Menu

Upcoming Journals
  • No Upcoming Journals

Journal of Experimental Agriculture International

Journal of Experimental Agriculture International, ..,Vol.: 14, Issue.: 6


Original Research Article


Evaluation of the Relationship and Impact of Climatic Factors on West Tennessee Corn and Soybean Yields from 1955 to 2013



William Michael Vestal1*, Rachna Tewari1, Barbara Darroch1 and Joey Mehlhorn1

1University of Tennessee at Martin, Martin, Tennessee, USA.




This study was designed to determine if a relationship existed between corn (Zea mays) and soybean (Glycine max) yields and climate factors in West Tennessee from 1955 to 2013. Yield data was obtained from National Agricultural Statistics Service (NASS) annual crop surveys for the twenty one counties in United States Department of Agriculture (USDA) West Tennessee and Delta Districts.  Climate data was obtained from National Climatic Data Center (NCDC). Only climate data from April through October was used in calculations to more accurately reflect corn and soybean growing seasons. Correlations, linear regressions, and multiple regressions were developed to compare crop yields with climate factors for the year as well as three phases of the crop production process (planting, growing, and harvesting). Significant relationships were found to exist between corn yield and minimum temperature (r = 0.32; P = .01), precipitation (r = 0.29; P = .26), Palmer Z-Index (r = 0.26; P = .47), and one month Standardized Precipitation Index (r = 0.26; P = .049). Significant relationships were found between soybean yield and maximum temperature (r = -0.32; P = .01), precipitation (r = 0.43; P < 0.001), Palmer Drought Severity Index (r = 0.28; P = .03), Palmer Z-Index (r = 0.43; P < .001), and one month Standardized Precipitation Index (r = 0.46; p < .001).  The study found that yields were dependent on multiple climatic factors due to the abundance of significant multiple regression models compared to linear regression models.  However, West Tennessee corn and soybean yields were not statistically influenced by average temperature or climate factors during the planting stage of production. Overall, growing season temperature and precipitation factors were important and will continue to impact corn and soybean yields in West Tennessee.


Keywords :

Corn; soybean; climate; agriculture; crop; temperature; precipitation; climate variability.


Full Article - PDF    Page 1-15    Article Metrics

Review History    Comments

Search this site

Advanced Search

Announcement & News

SCOPUS selected Annual Research & Review in Biology (ARRB)

We are delighted to inform that famous indexing organization SCOPUS (from Elsevier) selected  A...

Index Copernicus Evaluation Result Released

We are delighted to inform that Index Copernicus (a leading indexing organization from Pol...

Journal Repository (JR): Permanent Digital Archiving of SDI journals

SDI is happy to announce that all our journals are now permanently archived in Journal Repository (J...

Index Copernicus Value of British Journal of Medicine and Medical Research

  We are delighted to inform that Index Copernicus (a leading indexing organization ...

SDI journal got 35th ranking in Publons

We are delighted to announce (as of 04/01/2016) that British Journal of Medicine and Medical Re...

Growth of SDI and world publication market

As of 2014, total 25,064 journals are competing in World market of journal publication. In 2011, tot...

Publication and site statistics (up to Sept, 2015)

  Number of submission: 22181 (Total up to Sept, 2015) Number of published paper: 10949&n...

Index Medicus selected 15 SDI journals

We are delighted to inform that Index Medicus (IMSEAR) has selected following 15 SDI journals for in...

SCIENCEDOMAIN international received 5844 submissions in 2013

SCIENCEDOMAIN international is pleased to announce that it has received 5844 submissions in 2013, ac...

Science (IF: 31) report confirmed the high standard of SDI journal

As per a recent report (Link) of Science journal (present Impact factor 31), one of our journal (Bri...


  • No Awards listed.

Browser Compatibility : Mozila firefox, Google Crome and IE 7 & above. Creative Commons License Terms & Condition   |   Privacy Policy   |   Join Us   |   Help   |   Contact Us
© Copyright 2010-2017, SCIENCEDOMAIN international. All rights reserved.