@article{Karer_Wimmer_Zehetner_Kloss_Soja_2013, title={Biochar application to temperate soils: effects on nutrient uptake and crop yield under field conditions}, volume={22}, url={https://journal.fi/afs/article/view/8155}, DOI={10.23986/afsci.8155}, abstractNote={<p><span style="color: #211d1e; font-size: xx-small;"><span style="color: #211d1e; font-size: xx-small;">The benefits of biochar (BC) application to fertile, non-acidic soils in temperate climate regions might not always be as evident as for highly weathered tropical soils. The aim of our study was to investigate the effects of BC on soil characteristics, nutrient uptake and crop yield in field experiments on two temperate soils (Cambisol and Chernozem) in Austria. Maize and wheat (Cambisol), and barley and sunflower (Chernozem) were grown in successive vegetation periods following different BC application rates (0, 24 and 72 t ha</span></span><span style="color: #211d1e; font-size: xx-small;"><span style="color: #211d1e; font-size: xx-small;">-1 </span></span><span style="color: #211d1e; font-size: xx-small;"><span style="color: #211d1e; font-size: xx-small;">at the start of the experiment), sup</span></span><span style="color: #211d1e; font-family: Calibri,Calibri; font-size: xx-small;"><span style="color: #211d1e; font-family: Calibri,Calibri; font-size: xx-small;"><span style="color: #211d1e; font-family: Calibri,Calibri; font-size: xx-small;">plemented </span></span></span><span style="color: #211d1e; font-size: xx-small;"><span style="color: #211d1e; font-size: xx-small;">with identical mineral N supply in 33 m² plots. BC treatments showed varying impacts on nutrient uptake of the investigated crops. The first growing season in the Chernozem region was affected by a prolonged drought period, which resulted in positive effects of BC on soil water-holding capacity (WHC) and barley crop yield (+ 10%) for the 72 t ha</span></span><span style="color: #211d1e; font-size: xx-small;"><span style="color: #211d1e; font-size: xx-small;">-1 </span></span><span style="color: #211d1e; font-size: xx-small;"><span style="color: #211d1e; font-size: xx-small;">BC + N treatment compared to a control with identical nutrient supply but without BC. However, maize and wheat grain yield decreased by 46 and 70%, respectively, after the highest BC application rate (72 t ha</span></span><span style="color: #211d1e; font-size: xx-small;"><span style="color: #211d1e; font-size: xx-small;">-1</span></span><span style="color: #211d1e; font-size: xx-small;"><span style="color: #211d1e; font-size: xx-small;">) in an additional treatment without supplementary N-fertilisation. Still, even with high BC application rates we did not observe any adverse effects on crop yield and nutrient uptake, as long as the soil was supplied with sufficient N according to local agricultural practice. </span></span></p><span style="color: #211d1e; font-size: xx-small;"><span style="color: #211d1e; font-size: xx-small;"> </span></span>}, number={4}, journal={Agricultural and Food Science}, author={Karer, Jasmin and Wimmer, Bernhard and Zehetner, Franz and Kloss, Stefanie and Soja, Gerhard}, year={2013}, month={Dec.}, pages={390–403} }