Evaluation of the Relationship and Impact of Climatic Factors on West Tennessee Corn and Soybean Yields from 1955 to 2013
Journal Title: Journal of Experimental Agriculture International - Year 2016, Vol 14, Issue 6
Abstract
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.
Authors and Affiliations
William Michael Vestal, Rachna Tewari, Barbara Darroch, Joey Mehlhorn
Keywords
Related Articles
- EP ID EP351371
- DOI 10.9734/JEAI/2016/30574
- Views 82
- Downloads 0
Investigation of Phytochemical Components and Bioautography of Garcinia mangostana L. Methanol Leaf Extract
The aim of this work to identify chemical components of Garcinia mangostana leaves and test the antibacterial effect on Pseudomonas syringe pv. tomato and Xanthomonas oryzae pv. oryzae using bioautographic procedure. Phy...
Development and Properties of Green Tea with Reduced Caffeine
Caffeine is one of the main components of green tea and has side effects such as sleeplessness. Senior citizens, children, and pregnant woman should avoid tea despite its known beneficial effects. In this study, we devel...
A Series of Consumer Workshops: Informing Alabama Consumers about Organic Agriculture
A series of consumer-oriented workshops were conducted to inform Alabamians about organic agriculture. Workshops (N =10) were conducted by the participation of 257 farmers and consumers in nine Alabama, USA cities using...
Factors Affecting the Involvement of Women in Income Generating Activities in Sabon-Gari Local Government Area of Kaduna State, Nigeria
This study examines factors affecting the involvement of women in income generating activities. Data for this study were obtained by the use of structured questionnaire. A total of 120 respondents were interviewed consis...
Assessment of Yield Attributes and Industrial Quality Parameters of Oat Cultivars (Avena sativa L.) Using Multivariate Techniques (PCA, PLS-DA and OLS-R)
Triazoles and strobilurins group of fungicides have been reported to have dual properties (growth regulator and fungicide) and have been used to prevent the plant lodging. In this study four subsequent field experiments...