作者: Petri Ekholm , Eila Turtola , Juha Grönroos , Pentti Seuri , Kari Ylivainio
DOI: 10.1016/J.AGEE.2005.04.014
关键词:
摘要: … simple empirical model that relates the P surplus (or deficit) in … by the strong tendency of soil to bind P. When the input of … Programme only 75% of manure P is assumed to be ‘effective’. …