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Nitrogen yield and nitrogen use of chickpea compared to pea, barley and oat in Central Europe | ||
International Journal of Plant Production | ||
مقاله 9، دوره 9، شماره 2، اردیبهشت 2015، صفحه 291-304 اصل مقاله (354.98 K) | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22069/ijpp.2015.2049 | ||
نویسندگان | ||
R.W. Neugschwandtner* 1؛ H. Wagentristl2؛ H.-P. Kaul3 | ||
1BOKU - University of Natural Resources and Life Sciences, Vienna, Department of Crop Sciences, Division of Agronomy, Konrad Lorenz-Str. 24, 3430 Tulln, Austria. | ||
2BOKU - University of Natural Resources and Life Sciences, Vienna, Department of Crop Sciences, Experimental Farm Groß-Enzersdorf, Schlosshoferstr. 31, 2301 Groß-Enzersdorf, Austria. | ||
3BOKU - University of Natural Resources and Life Sciences, Vienna, Department of Crop Sciences, Division of Agronomy, Konrad Lorenz-Str. 24, 3430 Tulln, Austria | ||
چکیده | ||
European agriculture suffers from a substantial deficit of protein sources for livestock and the projected changes in agro-climatic conditions in Central Europe include a higher risk of drought. To address these challenges, the drought resistant legume crop chickpea was compared with pea, barley and oat regarding its nitrogen (N) yield, protein yield and N use and utilization efficiency under Central European growing conditions. The two year trial was conducted in eastern Austria with calcium ammonium nitrate or the depot fertilizer Basacote® Plus 6M at two levels of N rate each besides an unfertilized control. In 2006, chickpea had the lowest grain yield and grain N yield among the four crops while under drought conditions in 2007 chickpea attained a higher grain protein yield that surpassed those of barley and oat. Under both, the more humid conditions in 2006 and the drier weather in 2007, chickpea maintained a constant partial factor N use efficiency (PFNUE: grain yield per unit fertilizer N) and a consistently high N utilization efficiency (NUtE: grain yield per unit N in the above-ground dry matter) for grain production whereas these parameters were severely decreased by drought with pea, barley and oat. Results indicate that chickpea could be an alternative in a future more dry climate for achieving a reasonable protein yield in Central Europe through its ability to maintain high PFNUE and NUtE under conditions of drought. | ||
کلیدواژهها | ||
Chickpea؛ Nitrogen use؛ Calcium ammonium nitrate؛ Basacote® Plus 6M؛ Protein yield؛ Central Europe | ||
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