【篇号】1 【作者】Damodar Reddy, D., Subba Rao, A. and Takkar, P. N. 【文章标题】Effects of repeated manure and fertilizer phosphorus additions on soil phosphorus dynamics under a soybean-wheat rotation. 【期刊名,年份,卷(期),起止页码】Biology and Fertility of Soils 1999. 28(2):150-155. 【全文链接】http://link.springer.com/article/10.1007/s003740050477# 【求助者联系方式】
【篇号】2 【作者】McKeague, J. A., Brydon, J. E. and Miles, N. M. 【文章标题】 Differentiation of forms of extractable iron and aluminum in soils1. 【期刊名,年份,卷(期),起止页码】Soil Science Society of America Journal 1971. 35(1):33-38. 【全文链接】https://dl.sciencesocieties.org/publications/sssaj/abstracts/35/1/SS0350010033 【求助者联系方式】
【篇号】3 【作者】Pastor, J., Aber, J. D., McClaugherty, C. A. and Melillo, J. M. 【文章标题】Above-ground production and n and p cycling along a nitrogen mineralization gradient on blackhawk island, wisconsin. 【期刊名,年份,卷(期),起止页码】Ecology 1984. 65(1):256-268. 【全文链接】http://www.esajournals.org/doi/abs/10.2307/1939478 【求助者联系方式】
【篇号】4 【作者】Scheffer, M. 【文章标题】Multiplicity of stable states in freshwater systems. 【期刊名,年份,卷(期),起止页码】Hydrobiologia 1990. 200:475-486. 【全文链接】http://link.springer.com/chapter/10.1007/978-94-017-0924-8_42 【求助者联系方式】