( ( ( ( ( ( ( The ( major nutrients ) ) , ) or ) macronutrients ) , ) ( required ( for ( plant growth ) ) ) ) ( ( are ( ( ( nitrogen ( -LRB- ( N -RRB- ) ) ) , ) ( ( ( ( ( ( ( ( phosphorus ( -LRB- ( P -RRB- ) ) ) , ) ( potassium ( -LRB- ( K -RRB- ) ) ) ) , ) ( ( calcium , ) magnesium ) ) , ) and ) sulfur ) ) ) . ) )
(ROOT (S (NP (NP (NP (DT The) (JJ major) (NNS nutrients)) (, ,) (CC or) (NP (NNS macronutrients)) (, ,)) (VP (VBN required) (PP (IN for) (NP (NN plant) (NN growth))))) (VP (VBP are) (NP (NP (NP (NN nitrogen)) (PRN (-LRB- -LRB-) (NP (NNP N)) (-RRB- -RRB-))) (, ,) (NP (NP (NP (NN phosphorus)) (PRN (-LRB- -LRB-) (NP (NNP P)) (-RRB- -RRB-))) (, ,) (NP (NP (NN potassium)) (PRN (-LRB- -LRB-) (NP (NNP K)) (-RRB- -RRB-))) (, ,) (NP (NP (NN calcium)) (, ,) (NP (NN magnesium))) (, ,) (CC and) (NP (NN sulfur))))) (. .)))
The major nutrients, or macronutrients, required for plant growth are nitrogen (N), phosphorus (P), potassium (K), calcium, magnesium, and sulfur.
(ROOT (S (NP (NNP Potassium) (, ,) (NNP calcium) (, ,) (CC and) (NNP magnesium)) (VP (VBP are) (VP (VBN considered) (NP (NNS macronutrients)))) (. .)))