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BIOSULFO
FERTILIZER DEVELOPI{ENT
FOR HORTICULTURE CROPS II, THEEFFECTOF PHOSPHATE
ROCKCONTENTAND
INOCULUIVlRAT]O OF
BIOSULFO
ON PAI]D
SUPTAKEAND YIELD
OF RED ONJON IN ACID ANDALKAL]NE
SOILSra.!rly orAsi:u
rureunveEly
ot seb? as M3rcr surakanaJ
k
suram 36AKeilnoai
Surrkada s7126Ceilra J3va ndonesarAqrcuture univeEry or cadjah Mada yosyskana
I
6i5ee4 E.maiadad
uns@vahoocom1s99:
&yanr
20031 orirns
(satih cra1
rgasar
al,
2000i Fenice er a/2000i Reddy er a/ , 2002 saslro,20r]6). Mcrcbes dssove rhe PRP by rheir acids prcduced borh
o4af c lsleYenson
Fenc. erar,2000rGadaq and sa, 2002i sasro, 2006)
s
re
as
noqanc acds(c.rre
1999).allemalvewayloicrcasetlioavailabillyolFftom
phcsphde
(sspl.r
rpd
super phospharelrspl
(cren,{
HammoM2003) Padjany acdualed
€n
aEo bedoie
wrhsultur c acid produced by sultur
uld
z ns mi6obes.F3rmeE I AL
shra
have tDnq besn used E osurer3id
3u[ur
i
!r&r
avaiabre F (risdae er a/,
lssol
rhe
research orsupry$
(2006tshlrcd
rhe addirionol
surtucrrre run sus or
n.,4'r
i
pko6ka,2
iqu d mediumrhh
opeis
!p
oppcdunresror
Fln'
se
o'
dsso
liion
o,
phosptrale,lre.
and sunuoxd4r
funsus P. na&ioyoturs lnd v dua y have been known ro dhsorv€ r,\e PR P,r
,&er
and surturoxd zerfuisrs
P
,a,gbye,s,s capabre of dssvins
PR.pm.k{ufu
IFRS) conleil andbosu fo on P and S uplake and €d onon yre d on
acid
(ariso)
and akarne(vei$r)
eis
rwo facldsdaualed
*re
PRS mnrenr(0%
60% 30%) and inocurum or/.n€e,
Pnarqirve,s,s Er oof bGurro (0:0, 1 1 and
3r)
As mu.h of 12 ks ofei
(o 2 mm) mred rhoroushrywrrr biosurfn, bascIed]l4andmanurepuljnlopolylaolhcnmle,iiq
on
oi
was pa
dl
lodch
pol)6aqaid ru
bated n0ie
gEn
holse. Trre elperlnrenba:nqed
,i
onpleley
hndomzedEpiErions
Varabes obseoed incuddr Paid
Suprake, and onion
yed
ar 5"/o levelor s sn
lcail
ldMd
wlh DrlrRTra
yssnir€d
niuenG
on
a.d
Amso
Hiqhesl P an{j s uplakc and onron] ] aid Pe l]t f.r Verl soL resDellYe,
Effob
lo
ncrea* rhesoubiitorp
rDsp,rrc(P)
fton
phosphate rock (PRl has been done brdpolig
ths
1016