Preceding crops influence agronomic efficiency in sugar beet cultivation
The choice of the crop succession influences the agronomic efficiency (yield per unit agronomic input) and is relevant for the sustainable intensification of crop cultivation. However, such effects are often ignored in assessments of agronomic efficiency. The aim of the study was to propose a concept for the assessment of and to publish data on (i) the effect of the preceding crop on
the amount of agronomic inputs used and the yield in sugar beet cultivation and (ii) the agronomic efficiency of the 2-year sum of preceding crop – sugar beet successions. As preceding crop (including catch crop) – sugar beet successions, we investigated (i) mustard – silage maize – sugar beet, (ii) phacelia – grain pea – mustard – sugar beet, and (iii) winter wheat – mustard – sugar beet in a field trial (Harste, Germany; 2011–2014). We found that fertilizer requirement of sugar beet was highest (108 kg nitrogen ha
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