Growth and yield of bell pepper as influenced by combination of poultry manure and NPK fertilizer

Figures (3) Tables (5)

Figure 1.
Effects of poultry manure and NPK fertilizer on fruit length of bell pepper.
Figure 2.
Effects of poultry manure and NPK fertilizer on number of fruits of bell pepper.
Figure 3.
Effects of poultry manure and NPK fertilizer on fruit weight of bell pepper.

Properties	Soil	Poultry manure
pH (H₂O)	6.6	8.2
Organic carbon (g/kg)	15.6
Organic matter (g/kg)		700
Total N (g/kg)	1.7	49.8
Available P (mg/kg)	10	0.3
Exchangeable cations (cmol/kg)
Magnesium	0.7	4.7
Calcium	1.8	34.5
Potassium	0.3	3.5
Sodium	0.8	0.8
Exchangeable acidity (cmol/kg)	0.2
Extractible micronutrients (mg/kg)
Iron	78.8	3870
Manganese	109.6	450
Copper	1.4	24.9
Zinc	8.6	310
Sand (g/kg)	812
Silt (g/kg)	54
Clay (g/kg)	134
Textural class (USDA)
	Sandy loam

Table 1.

Chemical properties, particle size of experimental soil and poultry manure composition.

Treatments	3 WAT	4 WAT	5 WAT	6 WAT
Control	11.66^b	12.72^c	13.35^c	15.00^e
100% NPK	10.15^d	11.44^d	13.69^c	16.31^d
50% NPK + 50% PM	11.19^c	12.61^c	15.29^b	17.50^c
33% NPK + 67% PM	21.79^a	26.89^a	27.68^a	30.26^a
67% NPK + 33% PM	11.00^b	12.38^c	13.76^c	17.44^c
100% PM	10.27^d	13.34^b	15.01^b	19.63^b
F value	1,857.61	8,696.36	2,896.06	3,668.11
Pr > F	<0.0001 **	<0.0001 **	<0.0001 **	<0.0001 **
Different letters within the same column indicate a significant difference at p < 0.05, ** significance at p ≤ 0.01, PM = Poultry Manure, WAT = Week After Transplanting.

Table 2.

Effects of poultry manure and NPK fertilizer on plant height (cm) of bell pepper.

Treatments	3 WAT	4 WAT	5 WAT	6 WAT
Control	0.40	0.44	0.42	0.45^f
100% NPK	0.32	0.35	0.42	0.58^d
50% NPK + 50% PM	0.38	0.41	0.47	0.65^c
33% NPK + 67% PM	0.50	0.48	0.57	0.94^a
67% NPK + 33% PM	0.33	0.40	0.46	0.50^e
100% PM	0.38	0.36	0.52	0.70^b
F value	0.85	0.80	0.95	643.18
Pr > F	0.5363^ns	0.5670^ns	0.4796^ns	<0.0001**
Different letters within the same column indicate a significant difference at p < 0.05, ** significance at p ≤ 0.01, ns = not significant, PM = Poultry Manure, WAT = Week After Transplanting.

Table 3.

Effects of poultry manure and NPK fertilizer on stem diameter (cm) of bell pepper.

Treatments	3 WAT	4 WAT	5 WAT	6 WAT
Control	13.00^a	15.20^a	23.75^b	24.20^c
100% NPK	8.20^c	9.80^d	12.75^d	21.80^e
50% NPK + 50% PM	8.50^c	10.00^c	12.25^e	20.20^f
33% NPK + 67% PM	12.80^b	13.80^b	28.50^a	43.20^a
67% NPK + 33% PM	7.50^d	8.50^f	11.50^f	23.20^d
100% PM	7.20^e	9.00^e	14.25^c	30.50^b
F value	4,344.76	4,263.35	56,591.40	71,146.60
Pr > F	<0.0001**	<0.0001**	<0.0001**	<0.0001**
Different letters within the same column indicate a significant difference at p < 0.05, ** significance at p ≤ 0.01, PM = Poultry Manure, WAT = Week After Transplanting.

Table 4.

Effects of poultry manure and NPK fertilizer on number of leaves of bell pepper.

Treatments	3 WAT	4 WAT	5 WAT	6 WAT
Control	0.75^b	1.25^b	2.25^d	3.50^f
100% NPK	0.25^c	0.75^d	1.75^e	6.75^c
50% NPK + 50% PM	0.25^c	0.75^d	2.50^c	5.00^e
33% NPK + 67% PM	1.25^a	3.75^a	9.00^a	10.00^a
67% NPK + 33% PM	0.00^d	0.50^e	1.75^e	5.75^d
100% PM	0.00^d	1.00^c	3.50^b	8.00^b
F value	6,045.82	81,663.60	94,803.10	6,776.91
Pr > F	<0.0001**	<0.0001**	<0.0001**	<0.0001**
Different letters within the same column indicate a significant difference at p < 0.05, ** significance at p ≤ 0.01, PM = Poultry Manure, WAT = Week After Transplanting.

Table 5.

Effects of poultry manure and NPK fertilizer on number of branches of bell pepper.