海量图书期刊资源，随时随地畅享阅读乐趣
Long-term effects of fertilisers and organic sources on soil organic carbon fractions under a rice–wheat system in the Indo-Gangetic Plains of north-west IndiaDas, D.; Dwivedi, B. S.; Singh, V. K.; Datta, S. P.; Meena, M. C.; Chakraborty, D.; Bandyopadhyay, K. K.; Kumar, R.; Mishra, R. P. · Soil Research · 2017