299

natever wo are studyiny in tho dry soil.

Here we soo cortain clcmoats, pocause there is roaliy
not much djiference in the ebsorpticn of strontium-59 or
GStrontivn-c) ov the ditferemnt icdines.

Whether it is strontiun-29

or strontiua-©9, the plent coos not distinguish, so the streatina
dis hove absorrcsd and it ds atsorbpod in histh or higher quantities
than any of the others.

With barden, it is not quite so much,

Icdine is absorbed comeavably to siventiun.,

There is a larssa

a

got a differing absorption.
get in the wide elements,

iF
oO
ft

QO
B
ct

fe
boty
Oo
4

oO

9)
oO
fs
fut
17)

QO

There is a sligat difference

[Me
B

poorly.

This quite varying betwoen what you
You night say the absorption of solis

is the mazsimium of ton -- the influcncs of the soil.
»

The next slide shows the uptake fron the nutrient sluss.

With a nutrient slut, you can conivol a single environment substrate factor more readily than you can by medifying a soil. If
you modify it by chansing FH, or something, then you are goinz to

modify a number of thinzs. Tho results from here on fAindicatirg)
are expressed as cencentration factors

frem nutrient slugs.

As the question a moment aso proposed, this conceniration factor is

taken as the ccncentration in the plant as compared

with the immediate reot environment, not the immediate nutrient
in general,

If you add thess, in genoral, thoy add almost in

4

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