Análisis del entorno general de la ciudad de Norwich: PESTEL y

requiro4 •

0� 79 • _d

-

_0.

-

_{X :;;J.9i} whete 4 =

apeoifi.o gmv.Lty 1�1.lire4

wt.nll •

w�t

_c£ te·�r�-.m:>etlume

·!b.Jtm.

The ninnral �ecic a ·�,ronent in the f"..r.ne mr.d f'ra.otima of U1e

oo:Ua wore ident.if'led. by dct(!l."'r:o.nit'JB t11e l'ollowing properties l:mder the

Colo;,\r-, l':'l�.cti·.m

:ln.de:.lc, b.lrcfr�a'lCc,

isot::l'op:1o oha.raoter and pleochroism. The list of mmemle detenl'med ll.'l.d reported in Table 4, _tt1B

ooni'i�OO. and <Ytt"!'eot�d wh0re ncoMI"m:'Y l'Y J. R.oea., f!e,log1o!11 f'.t'!l.""'J'y; D. S, l.R.

AU re�ents nt!�l rere of. NW.!\R gl"rule tmles5 otho!'\'11� �ooified.

The clb liiUed water and rear,ci"1ts were tested _{far 'tt'l.C:tr pota.ss:!um}

content

_and

f¥'1Y

pot�<milJ!l

found was a.llo't'Ted !'or 1n oal.C>..U.a:tine; resttlta.

In crder to otl rorve 'fhe ettoots of :tnte...l'lS.ive plant �rt..h

on

the various

toms or ooll potaFHdum, tJ1e 12 soils de110ribed on poeea �l-27, VJera ornp;;ed rlth :t talim �r:J'n"-13

(lo11.tli.l !!ll!ltH'lonun)

of a

bief'.J,ial strain,

ru,rypliod 'h1J

t!� Orano.bnd Di-,;iaion, D.s.I.R. • rr.n A!rll..July lf-)5.'\ tar roUa

A-K and � AprU...June 11)54 fo� oo1ls M-R untU Nrn:mbc:r ln55. In o� to a.,rnid OO"'.{Jliont\oos f.I.T."!sir>.p, � OOO{)Elti ticn betrroan

P1e..nt

_efl�cien, a

Ail'JSle

species

crop wan p:rofer:md _to n mixed one. Italit:'ln ljleP.;raM wns chosen for

ororoing in

pretercnoo to ti1o

plo..nts

used by

most u. s.A. -mrl-:em, e. r.. l all.no

olo�r or. oo ts t'or Um !'olJ.o«'inf0

rensons.

1.

It i!'l a etro�.ly {tl"O'fdng �;eoies,

particularly d_trl.ng t11e oolder mcnths. MoB t of 1tlc pots wrc atm1 down. in "111e ,!)ub.t:rnns ot J.n53 md ].<';)54 and t\8

�.p'SA ne poeAible estllhHell!lent � desire4.

5. It boa n loo.g<'r 3['0'1'1ifl period end in uore perni stent 1i1a.."'l oo.te or o1her

cereals.

If' the work _of

11itohell ( l95.G)

_on ihe _depressing

ct"feot

ot

tcmpez-­

�.turee

in emesn ot

700-p

0..'1 Uw c;t"C!t'lth

of ryc�see

had bean knmm l'!wn tt'.e

_/'

experlment wrut s-tarted,

it is prcb2b1e

t.ha'!; some otmr 5mee• e. a. _oookstoot, would have ben1 ohosen instcaa.

The pots T!lich held juot _f!ITC'r

1

_{l(g. o f air}

dry soU,

1'lere made

f'rom tiru"led. oontainera _U am.

high

aJJ4 :k;.. cm. 5n dituneter. A

1

_em.

hole WUJ

f'..IDOl-.,d _{hl the baae to}

allO!IT tar � and

_{the tin IIPI"t\V p ain}te4 �th

2

_ooa ta

ot

c

_lear "Pirit

1!\l'Sl11'111e

The dndn hole 1IM oo"fM'Ct\ w.l.th

a

4ieo ot _copper

l!lhee t

a.p�:ximately 3

_{an. m diameter} ana autf1G1ent

ooi4 WMhe4

(!;l"mtel

( > 3 CIDe)

l'la8 edde4 to erl.CJJ.re mod � �

•is.11lt

at tbe oonto.inere

WM l'J!jl..tSted 'tx> 300 E)l\e with tbi8

�.

A1r clrle4 8oll, l'lhioll had bnen m.;,a w.t.th the roqu:latte tJDC)Uflt or bual tert1l..i.IDer mixture, m. tNin a40e4 equ:mlent to

1

_�. ot oven 4rSAt4

32 ...

'M:.t.d.d.leburst silt lctlm t(\ e;i.v� n. rMoonab1e wlr.mo or ooil. Tho :rote ot N€w

Pl;11!:10'.lth �n�· loom and rJt K1rl.prum ol �f loon omtn.in� air

dcy

roil.

o:ruiw.lent

to elo pm. ::-nd �.o �. mrl'!n

et�' A.>i.'l) .

P as Ou Ha 1la1·'04 lili�N05 Feso4. 7 u2o Cu.S04.5 HiJ MnSo4.6 n2o .. u Zn ZnOO 4• 7

I!;[J

t�o ll!ln)l'li�

m�M.te

s

FeSo4.7 y

d:lovo. :r

.,

I! " 11 11 " " " " 15o �. 200 tl lOO tt 5 " 5 5 5 " If 0. 25 "

Ca end Mg as a 2

O&l<15

_{s �03 mixt'.ll"G, 1 t!ltle "[X3r}

2000 lb, lime

r��nt

an deteminod

by

the method ot

Vi oodrufi'

( 1949) •

A.U i'ertiluers :?nd the

chstUled

wat.er Vlm'e 0!1.-:ily&ed. tor

./

rotassium end. 1t _{is ooneiderocl tt.J.n.t lorm thll!l} 50 _{rrVJ.nR. of.' par po�}

( o,

Ol r.e

K %}

'mre adDed f'rom t.hc re s�roes,

The n o ns were �i> ·:, , field

�\J:Hlo:S:to-,

1\tt()t')d for 1?.

hours

sna

pbJ::!ied 'l'lith 12 I·hcl.ian ryegl"S.Ss seeds md _{u"ru)..nf'en"ed �} t1n unheated

g'Lnaa

hrw-e, Arr3

mte:t-

dmirdng

t.ht'Ol:t�"'.h the oots nrtc:r tJU.s and _{ef"te....- onbeeq .1.ent} md:;CI·:inr;s '!ln'J�

colleote4

and X"�:C't:llrned to !;!lC tt.l%'1':-.ce of the Mil,

ll.f'ter 2 weeks the rncdl:li1e9 �::-c Eilju ntcKl to <1-per pot either

by

tJ'l.inrtJ

:-tg or by tr�11

!!{ll.Mttna. Re�.tlnr

'IV'I\'�t.E>r..tnc �i th dis �lee!. \'lt'ter �.e

o:.urled oat so thnt th� pot�:� 'IVero r:>ainta.lr..ed at or neat" field

oapeci ty,

D:res!:'!1nr,s

of

ml4_!1gi'O�

tmt\

rti,Y03

'\"Jere mde at irreS}tl::-�.T

ir.tervals ond tl1.e

MUs

'!ml'e "limed" 5 times _{with tJ:JC OE003} s �03 m:iXbJre, the dross:lfl3S he :lng

ootcl"l!ililed by WotXlruf'f' B

teat,

The grnns, Ottt at 3

weel::ly

:i.:r::tcrv._1� z at

a:-::pl''JJdmatGly

3 CD. tt'all

tJ:J.e soil EIU'faoe, \1ns dried a.""ld

W31d'led

to rt1.% the yield of

dry

matter.

Approx.Unato4' l/4

�

ali<pOts

_{or gramd}

or

_{filt"oad(Jd drle<l �.ss were}

't."lJ.:en for

potMoitm onelysee,

� p�ta were

�·�ed. reg1J.t:..rly \'4th dilute "He:J::>�" 1n mter to

ldU

spb.ides, 1tlr!pe

a.'1Cl mea..l;y bug ?.'hidl infested the

&rUSe

S'Ve:n w1th. thia

sp�,

lll'lder the oondit:l.cns

�ing )n

iho l'J.MBboUI!!et it wu ditf'ioult to �t intesta.tim by th�se

rcsta

and aphides and mc&y bug appe�

trequen�.

lt wne

found thnt

oonaid.eroole _{root �opment tool10:} place d

tl)l). t in flii!IJJy pots, 110ote

lll>peand 1tm::lll � tb6 ch-ain hole•

Whe:re i:be s:>U tto.n4e4 to beoome puggec\ by adclmg wn.ter to

1he

!DU

llll"taM1

in particular, _the pots of 'l'okmaru _tine

aanc%'

1otD and _{� Qaakare olay} loom, water wrua a4d.e4 1lo

-�

::;ELECTED PHO'l' O,.rHAPHS OF GLASSHOUSE P OT EXP�.!,M�NT .

G:Snera.l Vi ew of Glas shous e .

I

Typ i c a.l First Year 1 s Growth. He.l c o mb e S ilt L o am e.nd

Mode of D eath of Plant s .

Waipara Silt Lo am. Oct . l9 5 4 .

Not e s mall amount of r egr orth from previously healthy p lnnt .

Typical S e c ond Year ' s Growth. Middlehur st Silt L o am and T okomaru Fine Sandy L o am .

Oct . l9 5 4 . .,. '·

t.ho �inage oollcotil1g dlah fro.m whence it

w:as

tn.l-.en up

by

the roots.

10

gn. BM!>lCB were

talr..en

at G

monthly intervals

tor � :ge­

oole potnMium �.J1d f.hr e.cid

rolt�.>le

potMBitD de�i.'l.'\tiCJUB

by taldtlg

4 C•);:c� �·-1. th a l cm. oork bl1l'C'r". The. 001"'!9 "I"JM'e qu�rtered. o.nl the stl"plua

three ff,H\.rlcrn were �t·n."M� to the :note.

Selected photogr-qphtJ of U1e pota

l."!'e

ahown w

��;ll'e

� to illustrnte tha cooer.ll t{:1PCarn."10o of the pots _{and gl.Me.hooae.}

Tlle stenlo.rd r-;tnv:iJoo t�lo, voltWe t:l."io _end oolau"imett"io me-lihods

for

det.ctminine potruudl!Il

a1:e n.ll t:lme

OOlllltl!nine

an\ require aooura.� ma

roproduoible

co.:1trol

O'I"''r expr�r.imental cond:t titnB

to

ensure s. hiljl 4e�e ot oo�. VariB.�.ona i.11 the (t') �ottitim of tOO

preo�:l.tn1Je md

inoo�lete lUI1ovnl of anoM reagent b;<,· w :l.SllL"lg are

bu-�

two of the marw causes ot "ar:i.ntion mioh occrur with -the oob&ltinitr1:te _'!'et.MA.

In a.iWi t1�t the stazXJ.ard ootht:lde m:oe not B.U I{J eoL4'1o tbr potanoiu:n and are :int'll1e:oocd to

Vilr;ring degreen b�, oth�r ia:1a,

in part1.cNlar

by

b::U'.b.n, ferric ,

t.U.t�1it.D �1 ;?hm'Jpht\te _:tms

(Tinsl.�; 1948) .

The l!l8tho4 wh:loh hns �H�ome. alloost universal oeonal'IG of its

speed• r.c.zt;.r::;• olid speoi!'ioit"J �-s the est.irrntion ot potassitvn by measuring

U1c i.."ltcn si�r of l.he rnd:iatio.n emitted at

769 "m)L by potnssium

nfnmB 11.hen they

lU:'e

excited

1n a t.lt.>me.

Tho metho4 ot estimat'lm etmsiatB eese..,tinlly of _{mee..nu1':1.na tJ'le} �l<lintion emitted. a-t; '769

""'!"•

when potaRn1-m

is introcluoed 1n�

a t'lcme under

oont�Ued

_{unitom oonditir.ne,} so that

w.ri:\tiale

in the potanaillll.

oonoentrntion of' -:he mlutions

test.ec11

n:ro reflected proportia-�ately :in the

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