El Niño modifies nutrient status in oil palm and helps foliage to recover from yellowing symptoms: new analysis and perspectives

Oil palm in Mexico and in the Americas / Le palmier à huile au Mexique et en Amérique latine. Coordonnateurs : Laurène Feintrenie, Cesar J. Vázquez Navarrete, Luz del Carmen Lagunes Espinoza

Open Access

Table 2

Nutrient contents (%D.M.) in leaflets from fronds 12 to 17 with or without yellowing symptom.

Teneurs en éléments nutritifs (%D.M.) des folioles des feuilles 12 à 17, avec ou sans symptômes de jaunissement.

Symptoms	N	P	K	Ca	Mg	Cl
2008 sampling
Without	2.507	0.158	1.164	0.948	0.156	0.732
With	1.868	0.130	1.435	0.727	0.146	0.850
P-value	0.000	0.001	0.013	0.013	0.600	0.198
2009 sampling
Without	1.946	0.130	1.618	0.720	0.115	0.922
With	1.547	0.102	1.477	0.701	0.121	0.831
P-value	0.000	0.000	0.411	0.693	0.646	0.118

In 2008, palms were 8 to 11 years old. The same palms were used for each sample, with or without symptoms with 5 replicates; in 2009, palms were 11 to 12 years old. The same fronds from the same palms were used for each sample with or without symptoms with 6 replicates (PDA, Quinindé).

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