Fig. 4. Chlorophyll meter sufficiency indices of conservation tillage cotton as affected by N fertilizer rate (a) 1996, and (b) 1997; (c) 1998, conventional and conservation tillage.
Fig. 4. Chlorophyll meter sufficiency indices of conservation tillage cotton as affected by N fertilizer rate (a) 1996, and (b) 1997; (c) 1998, conventional and conservation tillage.