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โครงการหนังสืออิเล็กทรอนิกส์ด้านการเกษตร เฉลิมพระเกียรติพระบาทสมเด็จพระเจ้าอยู่หัว

Table 20 Nutrients content (kg/rai) in the leaf of cassava in Wang Hai soil series at Nakhon Sawan
Province (rainy season 2017/2018)
Potassium (B) N Av. P2O5 Av. K2O Av.
(kg K2O/rai) KU50 RY11 (B) KU50 RY11 (B) KU50 RY11 (B)
0 13.79 a 20.69 a 17.24 0.71 a 1.45 a 1.08 3.06 b 4.24 a 3.65
4 18.28 a 13.08 bc 15.68 1.05 a 0.81 b 0.93 4.14 ab 2.62 b 3.38
8 13.79 a 18.47 ab 16.13 0.83 a 1.25 a 1.04 3.96 ab 3.71 ab 3.84
12 17.59 a 15.34 abc 16.47 0.99 a 1.16 ab 1.07 4.90 a 3.44 ab 4.17
16 18.72 a 10.74 c 14.73 1.10 a 0.78 b 0.94 4.85 a 2.38 b 3.62
Av. (A) 16.43 15.66 16.05 0.93 1.09 1.01 4.18 3.28 3.73
F-test (A) ns ns ns
F-test (B) ns ns ns
F-test (AxB) ** ** *
CV (A) (%) 35.2 38.1 32.0
CV (B) (%) 20.7 21.6 22.5
Remark : KU = Kasetsart 50, RY11 = Rayong 11
Means in a column followed by the same letter are not significantly different at 5% level by DMRT,
* : Significant at 5% level, ** : Significant at 1% level , ns : Not significant
Table 21 Nutrients content (kg/rai) in the stalk of cassava in Wang Hai soil series at Nakhon Sawan
Province (rainy season 2017/2018)
Potassium (B) N Av. P2O5 Av. K2O Av.
(kg K2O/rai) KU50 RY11 (B) KU50 RY11 (B) KU50 RY11 (B)
0 2.87 a 4.75 a 3.81 0.60 0.76 0.68 1.66 2.99 2.33
4 3.39 a 3.69 b 3.54 0.75 0.59 0.67 2.02 2.78 2.40
8 2.72 a 3.92 ab 3.32 0.62 0.61 0.62 2.30 3.53 2.92
12 3.14 a 3.18 bc 3.16 0.58 0.68 0.63 2.00 3.45 2.73
16 3.10 a 2.53 c 2.81 0.55 0.45 0.50 1.97 2.55 2.55
Av. (A) 3.04 3.61 3.33 0.62 0.62 0.62 1.99 b 3.06 a 2.59
F-test (A) ns ns *
F-test (B) ns ns ns
F-test (AxB) * ns ns
CV (A) (%) 41.3 16.3 25.1
CV (B) (%) 17.1 17.6 23.0
Remark : KU = Kasetsart 50, RY11 = Rayong 11
Means in a column followed by the same letter are not significantly different at 5% level by DMRT, * : Significant at 5% level, ns : Not
significant

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