Fertilizer Property

Fertilizer-P Source

Pelletized CG

Powderized CG

Mean

Standard Error

Mean

Standard Error

pH

8.78

0.13

8.50

<0.01

EC (dS∙m⁻¹)

226

2.2

298

4.1

OM (g∙g⁻¹)

0.26

0.01

0.25

0.02

TC (g∙g⁻¹)

<0.01

<0.01

<0.01

<0.01

TN (g∙g⁻¹)

0.06

<0.01

0.05

<0.01

Water-soluble (mg∙kg⁻¹)

P

216

1.6

281

2.2

K

1.5

0.2

11.4

0.6

Ca

11.6

0.8

8.9

0.5

Mg

157

1.8

182

1.3

Fe

1.2

<0.1

0.5

<0.1

Weak-acid-extractable (mg∙kg⁻¹)

P

24,479

296

27,669

370

K

230

1.3

253

13.1

Ca

83

2.8

110

0.8

Mg

21,444

254

24,025

337

Fe

127

0.9

115

0.7

Total-recoverable (mg∙kg⁻¹)

P

116,556

2480

113,186

2425

K

842

4.4

853

2.7

Ca

312

13.5

256

2.0

Mg

83,234

1795

80,360

1962

Fe

4505

45.8

4009

47.3