A model for estimating crop yield losses caused by soil compaction
作者： Johan Arvidsson , Inge Håkansson
DOI: 10.1016/0167-1987(91)90046-Z
关键词:
摘要: A computerized empirical model for estimating the crop yield losses caused by machinery-induced soil compaction and value of various countermeasures is presented, along with some examples estimations made it. The based mainly on results Swedish field trials, predicts effects in a tillage system that includes mouldboard ploughing. It designed use at farm level four categories effects: (1) Effects recompaction after calculations are wheel track distribution relationship between “degree compactness” plough layer yield. (2) persisting Crop estimated from traffic intensity Mgkm ha−1 (Mgkm = product weight machine distance driven), moisture content, tyre inflation pressure clay content. (3) subsoil compaction. similar to those presented under point (2), but only vehicles high axle load considered. These most persistent. (4) ley crops. distribution, content several other factors.
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sci-hub.se 参考文章(4)
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