Nutrient

Values from the sigmoidal Boltzmann equation

A1

A2

x0

dx

r²

N

−0.04469

3.48566

439.78496

93.29650

0.99389

P

−0.01066

0.42221

439.41001

102.51306

0.98493

K

−0.01334

3.42691

354.47586

63.90702

0.99429

Ca

−0.00319

0.76275

323.92933

58.47698

0.99701

Mg

0.00375

0.21669

291.30331

49.05847

0.99667

S

0.00136

0.37501

347.27905

57.64440

0.98798

B

−0.11937

1066.23180

1196.29819

125.55619

0.97741

Cu

0.02641

1.38636

336.54024

50.49210

0.98819

Fe

−0.16752

24.70437

315.59721

55.74993

0.99013

Mn

0.04567

2.83715

357.48608

49.23191

0.99234

Zn

0.00956

5.93737

369.03956

63.23130

0.99664