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Table 5 Effect of single and combined applications of RSB and NPK mineral fertilizers on the dissolved and microbial fractions of C and N

From: Rice straw biochar and NPK minerals for sustainable crop production in arid soils: a case study on maize-wheat cropping system

 

Summer season (maize)

Winter season (Wheat)

 

df

Sum of Squares

Mean Square

F

Sig

Sum of squares

Mean Square

F

Sig

Dissolved organic carbon

Between groups

5

48,760.5

9752.1

18.985

 < 0.001

49,996

9999.2

18.91

 < 0.001

Within groups

12

6164.04

513.67

  

6345.32

528.777

  

Total

17

54,924.54

   

56,341.32

   

Dissolved organic nitrogen

Between groups

5

446.336

89.267

15.355

 < 0.001

509.625

101.925

15.907

 < 0.001

Within groups

12

69.764

5.814

  

76.89

6.407

  

Total

17

516.1

   

586.515

   

Microbial biomass carbon

Between groups

5

5572

1114.4

18.089

 < 0.001

5740

1148

17.803

 < 0.001

Within groups

12

739.289

61.607

  

773.793

64.483

  

Total

17

6311.289

   

6513.793

   

Microbial biomass carbon

Between groups

5

758.792

151.758

14.657

 < 0.001

1330.679

266.136

21.911

 < 0.001

Within groups

12

124.246

10.354

  

145.754

12.146

  

Total

17

883.038

   

1476.433

   
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CABI Agriculture and Bioscience

ISSN: 2662-4044