Journal of Food, Agriculture and Environment

The effect of direct and traditional seeding methods and different water levels on the water–yield relationship of drip irrigated corn

Author(s):

Ali Beyhan Uçak ¹, Cafer Gençoğlan ², Hasan Değirmenci ²

Recieved Date: 2013-07-29, Accepted Date: 2013-10-26

Abstract:

This research, conducted as a field study in order to determine the potential outcome of the irrigation issues, was formed on six different levels, on crop yields under direct and traditional sowing. The study was conducted in the Eastern Mediterranean Institute of Agricultural Research on a trial basis throughout the growing season of the maize during 2010 and 2011. The different irrigation levels included in the study were formed of full irrigation in which the 100% of the water consumed once a week on a 90-cm soil profile was applied (I₁₀₀, control matter), partial irrigation in which 80% (I₈₀), 60% (I₆₀), 40% (I₄₀), and 20% (I₂₀) of the full irrigation were applied and 0% (I₀) in which no irrigation was applied. Thus, the study consisted of a total of six irrigation issues, one of which was full irrigation, four different irrigation levels and one without any irrigation. ADA-9516 hybrid corn was used as a plant material in the study. The leaf area index, the dry matter content and the plant height decreased with the plant water stress index increasing. The grain yield of maize begun decreasing and the irrigation CWSI threshold value determined through the observations of infrared thermometer set at 0.23. The highest chlorophyll content during the trial period was 57.91 SPAD in the case of fully-irrigated direct sowing (I₁₀₀), and lowest as 39.44 SPAD using a compact traditional planting on anhydrous irrigation (I₀). In the first year 6.16 kg/da and in the second year 18.71 kg/da more net income were obtained from the direct sowing method compared to the traditional sowing method. At the end of the study a maximum 20% decrease in the irrigation and the utilization of drip irrigation will lead to cultivation with less investment and more profit under the conditions where irrigation water is scarce or expensive.

Keywords:

Corn, drip irrigation, deficit irrigation, crop water consumption, grain yield

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Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Agriculture
Pages: 828-833

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