Taylor & Francis期刊
作者:Erasmus Otabbong , Jan Persson
来源:[J].Acta Agriculturae Scandinavica, Section B - Plant Soil Science(IF 0.705), 1994, Vol.44 (1), pp.2-11Taylor & Francis
摘要:Cultivated acid clay, sandy clay, silt loam and sandy loam soils were homogenized with 0, 12, 36 and 108 mg P kg-1 (soil dry wt.), applied as fused calcium phosphate (FP) or single superphosphate (SP), repeatedly cropped in a greenhouse and sampled after harvesting the third...
作者:... Olga lakimenko , Ingvar Nilsson , Jan Persson
来源:[J].Acta Agriculturae Scandinavica, Section B - Plant Soil Science(IF 0.705), 1997, Vol.47 (2), pp.65-70Taylor & Francis
摘要:The effects of sewage sludge (SS) application on NH4NO3-extractable Cu, Zn, Pb and Cd as well as metal uptake by barley (Hordeum vulgare L.) were investigated using a sandy loam soil (pH in water = 6.7). Treatments comprised three replicates each and were as follows: untreat...
作者:Åsa Kilbom , Jan Persson
来源:[J].Ergonomics(IF 1.674), 1987, Vol.30 (2), pp.273-279Taylor & Francis
摘要:Work in the manufacturing industry is associated with a high prevalence of cervicobrachial disorders.The outcome in individual cases varies; some go without symptoms for many years, others have to be relocated because of serious disorders after only a few years. Since the gross c...
作者:Lennart Mattsson , Jan Persson
来源:[J].Archives of Agronomy and Soil Science, 2006, Vol.52 (5), pp.485-494Taylor & Francis
摘要:In two long-term field experiments started in 1951 in south Sweden, impacts of crop residue treatments in four course rotations were compared. The rotations included sugar beets, cereals, oil seeds and clover/grass. Crops were grown after each other. Effects on soil carbon (C) an...
作者:Eliel Steen , Per-Erik Jansson , Jan Persson
来源:[J].Acta Agriculturae Scandinavica, 1984, Vol.34 (2), pp.153-166Taylor & Francis
摘要:In 1979 a major integrated research project 'The Ecology of Arable Land' was initiated, in which recent trends in Swedish crop husbandry are reflected. These trends include less carbon input through crop residues, a higher nitrogen input through fertilizers, less biological fixat...


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