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Qadir, Manzoor ,  Noble, A.D. ,  Schubert, S. ,  Thomas, Richard J. ,  Arslan, A. ,  [Sodicity-induced land degradation and its sustainable management: Problems and prospects] ,  Sodicity-induced land degradation and its sustainable management: Problems and prospects

Gijsman, AJ ,  Thomas, Richard J. ,  [Evaluation of some physical properties of an oxisol after conversion of native savanna into legume-based or pure grass pastures] ,  Evaluation of some physical properties of an oxisol after conversion of native savanna into legume-based or pure grass pastures

Amézquita Collazos, Edgar ,  Thomas, Richard J. ,  Rao, Idupulapati M. ,  Molina Lopez, DL ,  Hoyos Garcés, Phanor ,  [Use of deep-rooted tropical pastures to build-up an arable layer throught improvement soil properties of an oxisol in the Eastern Plains (Llanos Orientales) of Colombia] ,  Use of deep-rooted tropical pastures to build-up an arable layer throught improvement soil properties of an oxisol in the Eastern Plains (Llanos Orientales) of Colombia

Qadir, Manzoor ,  Quillérou, E. ,  Nangia, V. ,  Murtaza, G. ,  Singh, M. ,  Thomas, Richard J. ,  Drechsel, Pay ,  Noble, A.D. ,  [Economics of salt-induced land degradation and restoration] ,  Economics of salt-induced land degradation and restoration

Cobo Borrero, Juan G. ,  Kass, D ,  Muschler, R ,  Arze Borda, JA ,  Barrios, E. ,  Thomas, Richard J. ,  [Abonos verdes de leñosas y no leñosas como fuente de nitrógeno a cultivos anuales] ,  Abonos verdes de leñosas y no leñosas como fuente de nitrógeno a cultivos anuales