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5 years ago

Die Wirksamkeit von Boden

Die Wirksamkeit von Boden

Performance of farmland

Performance of farmland terraces in maintaining crop productivity Figure 6.4 continued Comparisons of grain yield at different terrace age considering crop types showed variations with high standard deviation (Figure 6.5). For example, the average legumes (horse bean and field pea) yield showed an increasing trend, while cereals showed a nonlinear pattern. Barley, teff and emmer wheat slightly decreased, while wheat and maize tended to increase. However, in general, crop yield showed only very slight increases and decreases, which indicates stable conditions. Similarly, Herweg and Ludi (1999) reported that crop yields remained stable on the same plots between 1986 and 1989. 96

Performance of farmland terraces in maintaining crop productivity Figure 6.5 Different crops grain yield across terrace age� 97

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