A
STUDY TO DETERMINE THE SOIL POTASSIUM CONTENT OF EAST BLACK SEA
REGION OF
TURKEY
AND POTASSIUM CONTENT OF HYBRID
TEA PLANTS GROWN IN THIS AREA
*Muammer
SARIMEHMET
SUMMARY
The research
which is a subject of
this paper is realised in two
parts.In the
first part all of the tea palantations are surveyed and soil samples
are
collected so, each soil sample represents 500 decare of land.Thus 1678
soil
samples are collected to represent 63800 hectare of land where tea is
grown.Ammonium acetate soluable potassium cotent of these samples are
determined
and as a result , it is found that in 32.88% of the soils the potassium
content
is low , while in 44.15 % of the soils , the potassium content is
medium
and in % 22.97 of the soils potassium content is high.
In the second part, 3 locations in the region are chosen , and in each
locations four plantations, and in each plantation four plants are
chosen.Leaf
samples are collected from those chosen plants ,every year after
harvest during
the course of two years.The leaves are grouped as first leave + during
the
course of two years.The leaves are grouped as first leave + bud, second
leaves, thirds+fourth leaves and these grouped as first leave + bud ,
second
leaves,
thirds + fourth leaves and these groups of leaves are analysed for the
potassium content.Total potassium content of the leaves were found
as1.75% ,
1.65% , 1.45% , 0.96 % in the bud + first leaf , second leaf ,
third +
fourth leaf and old leaf respectively.
* Atatürk
Çay ve Bahçe
Bitkileri Araştırma Enstitüsü Müdürlüğü,
1987 RİZE.
Bitkisel üretimde Azot Potasyum
interaksiyonu (Nitrogen and
Potassium
interaction in crop production)Uluslar arası Gübre Semineri
, 1987
.ANKARA.