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Uptake of
calcium nitrate and potassium phosphate from foliar
fertilization by tomato
Gh. Peyvast*, J. A. Olfati, P.
Ramezani-Kharazi and S. Kamari-Shahmaleki
University
of Guilan, Horticultural Department, Rasht, Iran-Islamic
Republic.
*Corresponding author. E-mail:
gpeyvast@yahoo.com
Accepted 16 February, 2009 |
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The spectrum of materials known to be absorbed by plant
foliage has become exceedingly broad. To
determine, the effect of different levels of nitrogen and
potassium solution on the yield and quality of tomato, a two
factor completely randomized experimental design (CRD) with
three replications was conducted with `Maha` cultivar in an
unheated plastic tunnel. Nitrogen and potassium solution
from the source calcium nitrate and potassium phosphate were
used with an amount of 4, 6 and 8 and 2, 4 and 6 mmolL-1
respectively. Results of presented experiment revealed
different effects of calcium nitrate and potassium phosphate
as foliar nutrition and the interaction of these fertilizers
on the yield and quality of tomato. The results of this
experiment demonstrated that tomato crops fertilized with 6
mmolL-1 calcium nitrate and 4 mmolL-1
potassium phosphate contained greater quality.
Key words:
Nitrogen, potassium, foliar nutrition, yield, quality,
tomato. |
