Improvement of Nutrient Uptake, Yield of Black Sesame (Sesamum indicum L.), and Alluvial Soil Fertility in Dyke by Spent Rice Straw from Mushroom Cultivation as Biofertilizer Containing Potent Strains of Rhodopseudomonas palustris

Table 6

Effects of different levels of a mixture of four strains Rhodopseudomonas palustris in spent rice straw and chemical fertilizer on dyked alluvial soil fertility under the greenhouse condition after sesame harvest.

Factor

pHH2O(1 : 2.5)

pHKCl(1 : 2.5)

Total nitrogen (%·N)

Available ammonium (mg·kg^−1)

Total phosphorus (%·P)

Soluble phosphorus (mg·P·kg^−1)

Insoluble calcium-phosphorus(mg·P·kg^−1)

Insoluble aluminum-phosphorus(mg·P·kg^−1)

Insoluble iron-phosphorus(mg·P·kg^−1)

Organic matter (%C)

Exchangeable potassium (meq 100 g^−1)

Log PNSB (MPN g^−1DSW)

Biofertilizer level (A) (t·ha^−1)

0

6.09^c

5.12^d

0.185^c

98.2^c

0.031^c

28.8^d

146.1^a

72.9^a

329.4^a

1.92^c

0.353^c

1.94^c

3

6.28^b

5.43^c

0.213^b

87.8^d

0.039^b

34.9^c

123.4^b

62.9^b

317.4^b

2.19^b

0.445^b

6.14^b

4

6.35^b

5.56^b

0.232^a

128.3^b

0.039^b

37.5^b

127.1^b

56.3^c

316.3^b

2.25^b

0.479^b

6.22^b

5

6.48^a

5.73^a

0.232^a

136.5^a

0.041^a

43.6^a

124.8^b

51.8^d

317.3^b

2.67^a

0.543^a

6.92^a

Nitrogen and phosphorus fertilizer level (B) (%)

100

6.30

5.45

0.222

126.2^a

0.038

39.1^a

137.5^a

63.8^a

324.9^a

2.33

0.443

5.26

75

6.28

5.45

0.211

108.3^b

0.037

34.5^b

132.1^b

61.3^ab

323.1^a

2.25

0.476

5.31

50

6.32

5.47

0.213

103.7^c

0.037

35.2^b

121.6^c

57.7^b

312.3^b

2.28

0.446

5.35

Significant differences

(A)

(B)

ns

ns

ns

ns

ns

ns

ns

(AB)

ns

ns

ns

ns

ns

ns

ns

C.V. (%)

1.88

2.24

9.29

4.04

5.18

10.6

4.93

8.75

2.02

9.23

11.7

3.18

In a column, the different superscripts indicate significant differences at 5% (, ) and without a superscript indicates no significant difference according to Duncan’s post hoc test at 5% level. Values are means of four replications. DSW: dry soil weight.