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Ítem Conservation agriculture farming practices for optimizing water and fertilizer use efficiency in Central AsiaDevkota, M.; Devkota, Krishna Prasad; Gupta, R.K.; Sayre, K.D.; Martius, C.; Lamers, John P.A.Ítem Combining permanent beds and residue retention with nitrogen fertilization improves crop yields and water productivity in irrigated arid lands under cotton, wheat and maize(Elsevier) Devkota, M.; Martius, C.; Lamers, John P.A.; Sayre, K.D.; Devkota, Krishna Prasad; Gupta, R.K.; Egamberdiev, O; Vlek, Paul L.G.Ítem Poultry litter as a nitrogen and phosphorous source for the rice-wheat cropping system(Springer) Yadvinder-Singh; Gupta, R.K.; Thind, H.S.; Bijay-Singh; Varinderpal-Singh; Gurpreet-Singh; Jagmohan-Singh; Ladha, J.K.Ítem Yield and soil nutrient changes in a long-term rice-wheat rotation in India(Wiley) Bhandari, A.L.; Ladha, J.K.; Pathak, H.; Padre, A.T.; Dawe, D.; Gupta, R.K.Ítem Placement effects on rice residue decomposition and nutrient dynamics on two soil types during wheat cropping in rice-wheat system in Northwestern India(Springer) Yadvinder-Singh; Gupta, R.K.; Jagmohan-Singh; Gurpreet-Singh; Gobinder-Singh; Ladha, J.K.Ítem Evaluation of press mud cake as a source of nitrogen and phosphorus for rice-wheat cropping system in the Indo-Gangetic plains of India(Springer) Yadvinder-Singh; Bijay-Singh; Gupta, R.K.; Ladha, J.K.; Bains, J.S.; Singh, JagmohanÍtem How extensive are yield declines in long-term rice-wheat experiments in Asia?(Elsevier) Ladha, J.K.; Dawe, D.; Pathak, H.; Padre, A.T; Yadav, R.L.; Singh, Bijay; Singh, Yadvinder; Singh, Y.; Singh, P.; Kundu, A.L; Sakal, R.; Ram, N.; Regmi, A.P; Gami, S.K; Bhandari, A.L; Amin, R.; Yadav, C.R; Bhattarai, E.M; Das, S.; Aggarwal, H.P; Gupta, R.K.; Hobbs, P.RÍtem Sustainability of the rice-wheat cropping system: issues, constraints, and remedial options(Informa UK Limited) Ladha, J.K.; Pathak, H.; Gupta, R.K.Ítem Long-term effects of organic inputs on yield and soil fertility in the rice-wheat rotation(Wiley) Yadvinder-Singh; Bijay-Singh; Ladha, J.K.; Khind, C.S.; Gupta, R.K.; Meelu, O.P.; Pasuquin, E.Ítem Yield and phosphorus transformations in a rice-wheat system with crop residue and phosphorus management(Wiley) Gupta, R.K.; Yadvinder-Singh; Ladha, J.K.; Bijay-Singh; Singh, Jagmohan; Singh, Gurpreet; Pathak, H.