Authors:
Yadav, RL
Dwivedi, BS
Prasad, K
Tomar, OK
Shurpali, NJ
Pandey, PS
Citation: Rl. Yadav et al., Yield trends, and changes in soil organic-C and available NPK in a long-term rice-wheat system under integrated use of manures and fertilisers, FIELD CR RE, 68(3), 2000, pp. 219-246
Citation: Rl. Yadav et al., Rice-wheat cropping system: assessment of sustainability under green manuring and chemical fertilizer inputs, FIELD CR RE, 65(1), 2000, pp. 15-30