Nutrients (%)

Regression analysis between DM and Nutrients content (%)

N

y = −0.1303x + 3.8944

R² = 0.6653

P

y = −0.0325x + 1.5259

R² = 0.5241

N/P

y = −0.0448x + 2.558

R² = 0.3544

K

y = −0.1576x + 5.1263

R² = 0.7055

Ca

y = 0.0132x + 2.3878

R² = 0.0747

Mg

y = −0.0019x + 0.2244

R² = 0.0467

Na

y = −0.0415x + 1.0671

R² = 0.4762

Ca/Mg

y = 0.1836x + 10.882

R² = 0.1279

Mg/K

y = 0.0024x + 0.0379

R² = 0.385