International Journal of Horticulture 2015, Vol.5, No.1, 1
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Table 2 Proximate content of lettuce grown in Akure
Treatment
Moisture %
Crude protein % Ash %
Crude fibre %
Carbohydrate %
Fat %
control
13.49a
13.30cd
11.09c
13.79ab
54.19bcd
2.52abc
8t PM + RP
9.43cd
17.80ab
13.07abc
13.12ab
56.35bcd
2.94abc
4t PM + RP
12.12ab
16.68abc
13.43abc
13.37ab
58.76abc
3.16abc
12t PM
10.13cd
12.97d
13.19abc
13.49ab
50.47d
0.67c
8t PGM + RP
11.09bc
16.71abc
13.43abc
12.96ab
55.77abcd
1.86abc
4t PGM + RP
13.07a
17.09ab
11.39c
13.83ab
57.25abc
1.86abc
12t PGM
12.14ab
15.05bcd
12.78abc
13.61ab
56.15abcd
2.57abc
8t CM + RP
13.48a
18.79a
14.70a
12.96ab
61.61a
5.17a
4t CM + RP
9.09d
14.72bcd
13.92ab
10.28c
52.82cd
4.82ab
12t CM
13.27a
16.83ab
11.09c
14.19a
58.87abc
3.49abc
8t PM + SSP
12.39ab
15.44abcd
13.07abc
14.83ab
59.01abc
3.27abc
4t PM + SSP
12.58ab
18.69a
12.14bc
14.09ab
60.92ab
3.42abc
8t PGM + SSP
12.84a
16.92ab
12.27bc
13.06ab
58.15abc
3.05abc
4t PGM + SSP
13.09ab
13.30cd
11.72bc
12.28bc
53.19cd
2.8abc
8t CM + SSP
12.96ab
17.80ab
13.14abc
13.83ab
58.33abc
0.73c
4t CM + SSP
12.08ab
16.68abc
13.23abc
13.61ab
56.28abcd
0.67c
Note: Treatments within each column with the same letters are not significantly different. (P< 0.05) DMRT
For study conducted at Ikorodu, moisture content was
high in lettuce produced from 12t PGM and 4t PM + SSP
and low in 8t PM + RP amended plots. Plots that
received 8t CM + RP produced lettuce with highest
crude protein content and lowest in control plot. Ash
content of 26.82% was observed from 12t CM treated
plots with control plot producing the lowest ash content.
Lowest crude fibre content was observed from 4t PM +
RP and highest content from 8t PGM + RP. Lettuce
harvested from 8t PGM + RP plots produce the lowest
carbohydrate content, while those from 8t CM + RP
and 8t PGM + SSP had the highest carbohydrate
content. Fat content was lowest in plots fertilized with
4t CM + SSP and highest in control plot (Table 3).
Table 3 Proximate content of lettuce grown in Ikorodu
Treatment
Moisture (%) Crude protein (%) Ash (%)
Crude fibre (%) Carbohydrate (%)
Fat (%)
control
13.03abc
13.30e
16.72f
14.51a
62.49bc
3.49a
8t PM + RP
10.10d
17.80a
23.66bcde
11.79cd
60.22dc
2.69a
4t PM + RP
12.71abc
16.68abc
21.69e
11.48de
64.99abc
0.59ab
12t PM
12.39bc
13.62e
23.46cde
14.19ab
49.03e
0.24b
8t PGM + RP
11.71cd
16.71abc
21.69e
14.83a
41.39f
0.52b
4t PGM + RP
12.38bc
17.09abc
22.70de
14.09ab
50.29e
1.26b
12t PGM
14.68a
17.23ab
28.62a
13.99ab
56.27d
1.05b
8t CM + RP
14.08ab
18.07a
26.23abc
10.01e
70.56a
0.59b
4t CM + RP
13.38abc
16.37abcd
25.36bcd
14.80a
45.69ef
1.26b
12t CM
14.61a
14.12de
26.82a
14.36ab
66.44ab
0.59b
8t PM + SSP
13.39abc
14.06de
25.79abcd
14.64a
56.38d
0.67b
4t PM + SSP
14.64bc
14.16de
25.69abcd
13.41abc
56.49d
1.16b
8t PGM + SSP
13.75abc
14.82cde
25.74abcd
13.76ab
70.09a
0.85b
4t PGM + SSP
12.37bc
14.04de
23.69bcde
13.50ab
65.07abc
0.27b
8t CM + SSP
12.47bc
16.35abcd
24.42bcde
13.37abc
65.44abc
0.38b
4t CM + SSP
13.04abc
15.17bcde
23.71cde
12.66bcd
65.26abc
0.16b
Note: Treatments within each column with the same letters are not significantly different. (P< 0.05) DMRT
The positive response and increased yields attributes
and proximate composition of lettuce with applied
fertilizer treatments might be due to the low initial
nutrient status in the used soils, which revealed the
vital role played by the soil nutrient status in the crop
production. The result obtained clearly indicated that
organic manure combined with phosphorus fertilizers
prove to be a sound soil fertility management strategy
in the study area. This should be adopted by would-be
farmer of lettuce as combination of organic manure
