TY - BK AU - Singh,R.A. AU - Agrawal,H.P. AU - Nagarajan,S. AU - Singh,R.M. TI - Rice-wheat cropping systems in Varanasi District, Uttar Pradesh, India: Results of diagnostic survey U1 - 631.582 PY - 1996/// CY - Karnal (India) PB - Directorate of Wheat Research, KW - Cropping systems KW - AGROVOC KW - Mixed cropping KW - Monitoring KW - Oryza sativa KW - Sustainability KW - Rotational - KW - Término tomado de AGROVOC KW - Triticum aestivum KW - Farming systems ER -