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The roles of nitrogen, phosphorus and potassium on olive tree productivity
Year:
2011
Source of publication :
Acta Horticulturae
Authors :
Ben-Gal, Alon
;
.
Dag, Arnon
;
.
Erel, Ran
;
.
Yermiyahu, Uri
;
.
Volume :
888
Co-Authors:
Erel, R., Gilat Research Center, Agricultural Research Organization, Israel
Dag, A., Gilat Research Center, Agricultural Research Organization, Israel
Ben-Gal, A., Gilat Research Center, Agricultural Research Organization, Israel
Yermiyahu, U., Gilat Research Center, Agricultural Research Organization, Israel
Schwartz, A., Plant Sciences and Genetics in Agriculture, Hebrew University of Jerusalem, Israel
Facilitators :
From page:
259
To page:
268
(
Total pages:
10
)
Abstract:
The independent effects of irrigation solution N, P and K concentrations on flowering and fruit set in olive trees (Olea europaea L. 'Barnea') were studied over three successive seasons in a container experiment. Treatments included eight levels of N ranging from 5 to 202 mg/L, seven levels of P from 0.2 to 20 mg/L and seven levels of K from 10 to 208 mg/L. In spite of large variation in fruit load between the three seasons, the general trends were repeated annually. At low concentrations of each of the minerals, additions led to large increases in their contents in leaves and, as the concentrations became high, relative increases in leaf accumulation were reduced. Availability of both N and P was found to influence flowering intensity in the olive trees while K had only a minor affect. Fruit set was affected by both N and P but not K levels. Total fruit load of olives was a function of combined flowering and fruit set levels. Fruit load increased to a maximum as leaf N increased from 0.8% to approximately 1.7% and then decreased as leaf N further increased to 2.0%. Fruit set and thus the number of olives per tree increased appreciably as leaf P increased. The relative increases in fruit load tapered at the highest measured leaf P contents. Maximum fruit load was found corresponding to approximately 0.2% leaf P. Fruit load was not influenced by leaf K concentration. The findings indicate that N and P play fundamental roles in processes affecting olive-tree productivity.
Note:
Related Files :
BARNEA
Fertilization
flowering
Fruit load
Mineral nutrition
Oleaceae
Olea europaea
olive
Show More
Related Content
More details
DOI :
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30676
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:56
Scientific Publication
The roles of nitrogen, phosphorus and potassium on olive tree productivity
888
Erel, R., Gilat Research Center, Agricultural Research Organization, Israel
Dag, A., Gilat Research Center, Agricultural Research Organization, Israel
Ben-Gal, A., Gilat Research Center, Agricultural Research Organization, Israel
Yermiyahu, U., Gilat Research Center, Agricultural Research Organization, Israel
Schwartz, A., Plant Sciences and Genetics in Agriculture, Hebrew University of Jerusalem, Israel
The roles of nitrogen, phosphorus and potassium on olive tree productivity
The independent effects of irrigation solution N, P and K concentrations on flowering and fruit set in olive trees (Olea europaea L. 'Barnea') were studied over three successive seasons in a container experiment. Treatments included eight levels of N ranging from 5 to 202 mg/L, seven levels of P from 0.2 to 20 mg/L and seven levels of K from 10 to 208 mg/L. In spite of large variation in fruit load between the three seasons, the general trends were repeated annually. At low concentrations of each of the minerals, additions led to large increases in their contents in leaves and, as the concentrations became high, relative increases in leaf accumulation were reduced. Availability of both N and P was found to influence flowering intensity in the olive trees while K had only a minor affect. Fruit set was affected by both N and P but not K levels. Total fruit load of olives was a function of combined flowering and fruit set levels. Fruit load increased to a maximum as leaf N increased from 0.8% to approximately 1.7% and then decreased as leaf N further increased to 2.0%. Fruit set and thus the number of olives per tree increased appreciably as leaf P increased. The relative increases in fruit load tapered at the highest measured leaf P contents. Maximum fruit load was found corresponding to approximately 0.2% leaf P. Fruit load was not influenced by leaf K concentration. The findings indicate that N and P play fundamental roles in processes affecting olive-tree productivity.
Scientific Publication
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