Journal of Food, Agriculture and Environment

Vol 11, Issue 1,2013
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Effect of legume biological nitrogen on cereals grain yield and soil nitrogen budget in double-cropping system 


Lina Sarunaite *, Zydre Kadziuliene, Irena Deveikyte, Leonas Kadziulis

Recieved Date: 2012-09-28, Accepted Date: 2013-01-16


To assess the possibility to associate cereals with legumes as an alternative double-cropping system for supplying biological N to cereals, an experiment was conducted in Lithuania in 2003/2005. Winter wheat was direct-drilled into pea stubble, white and red clovers and the control plots conventionally drilled after ploughing in barley and pea stubble, white and red clover and perennial ryegrass. While the winter wheat yield in double- cropping system was reduced by 50% or more when compared to the control plots sown conventionally, a significant positive effect of N amount in winter wheat grain yield was observed in the double-cropping. During the winter wheat growing stage, the concentration of soil Nmin in the autumn and spring varied depending on the preceding crops and sowing method. A positive correlation was found between the soil Nmin and the wheat grain yield. A significantly higher total biological N was accumulated in the soil in double-cropping system clover-winter wheat as compared to control plots sown conventionally. 


Clovers, peas, winter wheat, nitrogen, double-cropping

Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 1
Category: Agriculture
Pages: 528-533

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