Pod yield plot"

R ESULT S AND DI SCUSSION CHAPTER IV

4.11 Pod yield plot"

From the analysis of varience, it was found that the effect of cowdung on the yield per plot was highly significant.Cj showed the highest yield (2.98 kg) and control treatment gave the lowest yield per plot ( l .98 kg) (Table 4). Same trend was found by Palevich (1965).

From the analysis of varience, it was found that combined effect of cowdung and poultry litter performed significantly on green pod yield per plant. The maximum pod yield per plant (269.72 g) was obtained from C3P3 and the minimum pod yield per plant (149.72 g) was obtained from control treatment (Table 6). The result revealed that manure showed beneficial effect on yield which was similar with the observation in the experiment carried out by Rue (1998).

Poultry litter showed significant variation on green pod yield and P3 produced the maximum pod yield per plant (2 J 8.68 g) where as control treatment gave the minimum pod yield per plant ( 181.87 g) (Table 5).

Analysis of variance revealed that the combined effect of cowdung and poultry litter on the pod yield per hectare was highly significant. The maximum pod yield (9 ton/ha) was recorded from C³P³ where as the minimum pod yield (5 ton/ha) was obtained from control treatment (Figure 8). The result showed significant increase in yield with increase in manure and the same trend was reported by Ferreira et al. (2002).

Poultry litter showed significant influence on the pod yield per hectare. The maximum yield (7.30 ton) was found from Pj and the minimum yield (6.18 ton) was obtained from control treatment (Figure 7). Hochmuth et al. (1993) reported that the yield responded quadratically to increasing rate of poultry manure.

4.12 Pod yield hectare"

Cowdung showed highly significant influence on the green pod yield per hectare. The maximum green pod yield per hectare (8.30 ton) was recorded from C³ where as the lowest pod yield (5.51 ton) was obtained from control treatment (Figure 6). The result showed that cowdung application significantly increase yield as reported by Palevich (1965).

Figure 7. Effect of different levels of poultry litter on the yield of okra

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Figure 6. Effect of different levels of cowdung on the yield of okra Yield {t/ha)

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Figure 8. Effect of the combination of different levels of cowdung and poultry litter on the yield of okra

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The treatment combinations at 15, 30 and 45 DAS significantly influenced the plant height. At 15 DAS, the highest plant height (15.67 cm) was observed in C³P³ and the lowest (6.47 cm) in C0P^0. At 30 DAS, the highest plant height Application of poultry litter exhibited a significant influence on plant height at

15, 30 and 45 DAS. At 15 DAS, P3 produced the highest plant height (11.35 cm) and the lowest plant height (9.26 cm) was found in P^0. At 30 DAS. the highest plant height (34.55 cm) was recorded from P³ and the lowest (27.05 cm) was recorded from P0. At 45 DAS, the highest height (61.73 cm) was recorded from P³ and the lowest (53.58 cm) was recorded from P^0.

Application of cowdung exhibited a significant influence on plant height at 15, 30 and 45 DAS. At 15 DAS, the tallest plant ( 14.66 cm) was found in the highest dose of cowdung application C³ and the shortest (6.46 cm) plant in C^0.

At 30 DAS, the highest plant height ( 41. 99 cm) was obtained from C³ and the lowest plant height (19 .28 cm) was obtained from C^0. At 45 DAS, the tallest plants (71.66 cm) were obtained from C³ and the shortest (40.72 cm) were obtained from Co.

The experiment was conducted at the central farm of Sher-e-Bangla Agricultural University during the period of April to July,2007. The experiment was carried out to evaluate the effect of different levels of cowdung and poultry litter on the growth and yield of okra. The experiment consists of two factors such as four levels of cowdung viz, 0, 9, 10 and 11 t/ha and four levels of poultry litter viz, 0, 7, 8 and 9 t/ha. Two factors experiment was laid out in Randomized Complete Block Design (RCBD) with three replications.

SUMMARY AND CONCL USION