Evaluation of yield and some physiological traits of forage corn affected by chemical and biological nitrogen fertilizers intercropped with sweet basilReport as inadecuate




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Journal of Central European Agriculture, Vol.18 No.2 June 2017. -

In order to evaluate yield and some physiological traits of forage corn under nitrogen fertilizers biological, chemical and integrated in additive intercropping with basil a field experiment was carried out in the Experimental Farm of Faculty of Agriculture, Lorestan University during 2014-2015 growing seasons. Treatments were arranged in a factorial experiment based on randomized complete blocks design with three replications. Experimental treatments were 100% chemical fertilizer N, bio-fertilizer nitroxin, integration of bio-fertilizer + 50% chemical fertilizer and control in different intercropping systems consisted of sole cropping corn and the additive intercropping of corn + 25% sweet basil, corn + 50% sweet basil, corn + 75% sweet basil and corn + 100% sweet basil. The results showed that integration of bio-fertilizer + 50% chemical fertilizer had the highest number of green leaves per plant 11.72 and leaf area index LAI 3.75 and there was no significant difference between this treatment and using 100% chemical fertilizer N in plant height, stem dry weight, chlorophyll a, chlorophyll b and carotenoids contents. Among different intercropping systems the highest plant height 179.25 cm, number of green leaves per plant 11.4, leaf dry weight 5.64 ton*ha-1, ear dry weight 7.19 ton*ha-1, stem dry weight 6.11 ton*ha-1, total dry weight 19.22 ton*ha-1, chlorophyll a 0.62 mg*g-1 FW, chlorophyll b 0.42 mg*g-1 FW, and total chlorophyll 1.04 mg*g-1 FW were obtained from sole cropping pattern. However, sole cropping pattern in terms of mentioned traits except for number of green leaves per plant, ear dry weight and total dry weight had no significant difference with corn + 25% sweet basil and corn + 50% sweet basil treatments The results showed that integration of bio-fertilizer + 50% chemical fertilizer could be considered as an approach to reduce the consumption of chemical fertilizers for sustainable agriculture

additive intercropping; chlorophyll; dry forage yield; forage corn; nitroxin



Author: Sajad KORDI - ; Department of Ecophysiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran Jalil SHAFAGH KOLVANAGH -

Source: http://hrcak.srce.hr/



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