Effect of different irrigation levels on some quantitative and qualitative traits of maize and soybean in intercropping

Subject Areas : Journal of Plant Ecophysiology

Y. Ghazi-khanlou Sani ¹ , Kh. Jamshidi ² , M.R. Azimi Moghadam ³

1 - گروه زراعت و اصلاح نباتات، دانشگاه زنجان، زنجان، ایران
2 - گروه زراعت و اصلاح نباتات، دانشگاه زنجان، زنجان، ایران
3 - گروه زراعت و اصلاح نباتات، دانشگاه زنجان، زنجان، ایران

Received: 2015-09-24 Accepted : 2015-09-24 Published : 2015-09-01

Keywords: Corn, soybean, Grain yield, replacement intercropping, Additive intercropping, water shortage,

Abstract :

In order to evaluation of yield and yield components of corn and soybean intercropping under different irrigation condition, a field experiment was conducted in research field of University of Zanjan as split plot based on randomized complete block design with three replications. The levels of irrigation containing 7days, as control, 9 days and 11 days were the main factors and pattern cropping as sub factors included sole cropping of corn, sole cropping of soybean, additive intercropping and replacement intercropping. The results showed that the highest yield obtained in control and 9 days irrigation regimens. There were not any significant differences in yield components between the control and 9 days irrigation regimen. The highest grain yield was obtained from the additive intercropping pattern. Irrigation levels had no effect on yield of soybean, and the highest yield was obtained in sole cropping of soybean, but, it did not show significant difference with intercropping. The interaction between irrigation and cropping pattern was not significant in any of the parameters in soybean and corn. In general, intercropping had significant advantages compared to monoculture. Nine days irrigation regimen was the best irrigation method for  grain yield in intercropping system.