Table 4 shows data on leaf area (LA), leaf area index (LAI) and harvest index. Poultry manure and NPK fertilizer treatments increased leaf area and leaf area index (LAI). The NPK fertilizer gave significantly higher values for leaf area and leaf area index (203.55cm2 and 4.35 respectively) than 0, 10 and 20 tha-1 poultry manure. Between 30 – 50 tha-1 applications of PM manure, there was no significant difference in LAI. Leaf area and LAI increased with increase in the levels of poultry manure and increase was linear. The 50 tha-1 poultry manure had the highest leaf area and LAI. This could have resulted in high biomass production at 9 months due to increase in the level of nitrogen in the high