TY - TH AU - Michaels,G.H. TI - The determinants of kharif fallowing on the vertisols in semi-arid tropical India PY - 1982/// CY - St. Paul, MN (USA) PB - University of Minnesota, KW - Climatic requirements KW - Cropping systems KW - AGROVOC KW - Environmental factors KW - Fields KW - India KW - Kharif season KW - Models KW - Periodicity KW - Programming KW - Resource allocation KW - Seasons KW - Soils KW - Time KW - Timing N1 - Thesis (Ph. D), tables, graphs, appendices, literature cited p. 168-171 ER -