A
STUDY ABOUT THE DETERMİNATİON OF THE SOİL PHOSPHATE (PHOSPHORUS)
CONTENT OF
EAST BLACK SEA REGİON OF TURKEY AND PHOSPHATE 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 of this study , all of the tea plantations are surveyed and
soil
samples are collected so, each soil sample represents 500 decare of
land.Thus
1678 soil samples are collected to represent 63,800 hectare of land
where tea
is grown.Not only the other analysis but also phosphate contents of
these
samples which can be used by tea plant are determined and as a
result, it
is found that in 83.2 % of the soils the phosphate content is low or
too low.
In
the second part of the study, 3 locations in the region are chosen,
and in
each plantation four plants are chosen.During the two years
, in
harvesting periods leaf samples are collected from those chosen
plants.
Phosphate
contents of the leaves were found as 0.43 % , 0.34 % , 0.26 %, 0.17% in
the
bud+first leaf,second leaf,third+fourth leaves , and old leaf
respectively.At
the same time phosphate contents of local and foreign produced teas
were
determined and it was found that phosphate contents of local produced
teas were
lower than phosphate contents of foreign produced teas.
*
Atatürk Çay ve Bahçe Bitkileri Araştırma
Enstitüsü , RİZE.
Toprak
İlmi Derneği
(Soil Science Society Of Turkey) 10 Bilimsel
Tebliğler.1980,ANKARA.