Titre :
|
A quadratic model for fertilizer recommendations based on results of soil analyses
|
Auteurs :
|
B. Van Raij ;
H. Canterella
|
Type de document :
|
article/chapitre/communication
|
Année de publication :
|
1996
|
Format :
|
p. 1595-1610
|
Langues:
|
= Anglais
|
Catégories :
|
AGROCHIMIE
|
Mots-clés:
|
FERTILISATION
;
ANALYSE DE SOL
;
MODELE
;
AZOTE
;
PHOSPHORE
;
POTASSIUM
;
RENDEMENT DES CULTURES
|
Résumé :
|
The establishment of a quantitative relationship between crop yields and amounts of applied nutrients is essential for fertilizer recommendations. A model was developed that uses yield goals, results of a soil analysis, and cost/value ratios for the calculations of rates of nitrogen (N), phosphorus (P), and potassium (K) to apply to corn. Experimental results of 25 NPK experiments with corn were used to evaluate the model.
|
Source :
|
Commun. soil sci. plant anal., vol.27, n°5-8
|