— 
— 
— 
0 
'‘.-jP 
J? 
Owing to tn© very rapid increase in tne price of cowdung as well 
(a 
tne great difficulties in obtaining it. various substitutes 
trill in 
• r ru 
\ 
under aiwKxxjtjdtEaea jails cur dun since trus your 1920, Opium Rofunc j CtiCn 
dg^being one of t$hem, By Burying deeply in tne soil ids or by mixing 
' S 
it with cowdung so as to innooulat© it witn bacteria, its docompositiaf 
it was tnpugnt, would bo sufficiently ra.pld( Rapt, Bart, P ardons . 1920 . 
p» 2) .Altnibugh tall substance was under observation sine© tout year, 
definite experiments could bo undertaken only in tn© second naif of tej 
tn® year 1923, and tnon too, owing to tn© cloning of tn© Economic G ar 
CL 
dens, only a preliminary trials could bo made .Tne following is/report 
on tnese trials. 
Plot Experiments 
Two contiguous plots of fairly uniform character wore enosen, 
one some rubbisn was burnt and tn© ash removed some two montns preview 
cue to its preparation for the present experiments , wnilo tns otnor 
was not treated at all. Both wore fallow for more tnon six montns and i 
no manure was used on them for more tnan & year. After naving been 
cleardd of oil weeds, each of tnose plots was properly tilled and di¬ 
vided into four bods, e&cn measuring 19x3 feet at tne top of tne bod 
( for tne planting )t“Jffonc^3/4 ft. 
at tne bottom wddt aado to <k , ^ , i V^ — 1 yn *r ~ bods end provided 
with outlets — r 1 r ’ u i "' 7 ’i ! 11 1! so that tne drainage water from tne 
beds may bo quickly removed off. In on on plot a bod was ko$t unm&nured 
as control, wnilc*tn© otn er three beds wero manured with old opium re- 
anl nrtAjuuL-i*x& K 
fustf^ frosn refuse, mad e e wd ^ wg respectively, at tne rate of one and hx 
half rubbisn basket per bod. Tne old opium refuse had boon buried deep 
for some two yoars mixed with leaf-mould in alforfcflto layers; when it 
was dug out no\ trace of leaves could bo detected witn & naked cyo and 
refuse had formed into a hard cako. It had,therefore, to bo pounded to 
V 
bits before it could be udod as a manure, Tno fresh opium refuse was 
Tno information regarding tno previous treatzaauit of tne plot?? tnd tn© 
LpLZ 
refuse whs supplied by tn© c foroman-gardener of tne Bconomic Garden. 
& zjt /: 
