
1922.] The Ninth Indian Science Congress. 1.8.C. 31 
TABLE II. 
Co-operative Field Experiments in Ryot’s Lands. 
Seer Experiments with Flour Sree: 


eres or 6 EXPERIMENTS | 
(YIELD IN LBS. PER ACRE.) | : | 

5 ————_— ——_-—_—_-- -- —_—| Percent- 
Locality. | | _age of REMARKS, 
Green nu reigichten” ‘epee 
_ manure. fe te in grain 
phat 
: a ee | R wi 
ia 
| ar (Ib.) 
Ettapur, Salem _Dis- | 
trict -- (1919); 2,138 2,550 412 19 
Ettapur -- (1922)! 3,759 4 060 301 8 
Danishpet .. (1922) 3,603 3,879 276 8 
Elandangudi, Tanjore | 
District .. (1922) | 2,102 | 2,440 a88 ..|..°.16 
Central Farm, Coim ba-| | 
tore © District ea 2,013 2,208 19% | 10 
(1922) | 2,562 | 2,843 | 281 | 
| 


Average -- | 2,696 | 2,907 301 

From the ditece dis eietlgutloa the conclusion is drawn that mineral 
os ound as fin possible, is a suitable phosphatic manure 
for paddy lands when applied along with rnc ae matter. 
The residual effect of the mineral phosphate se o be very sensible 
judged by the experiments at the Government Aerinctniend Stasions, but 
this is still under investigation. 
Note,—The paper was illustrated with photographs and lantern slides. 

Symbiotic nitrogen fixation in plants other than those of 
the Leguminoseae order.—By K. Aprnarayana Rao. 
ym mbiotic Nitrogen Fixation is not restricted to Leguminosae 
dda bat is a widespre enomenon, : : 
2. Plants of other orders such as Rubiaceae, Myrsinaceae, Casu- 
rineae are instances of the above phenomenon in the tropics, and in 
temperate regions several recap ve nD enumerated as examp 
3. ag i 
or cbltipassivs & tudy. . 
4. The leaves of both the species possess on their god 9 aces 
nodules invariably filled with onan which have been sh to be 
ca rine of nar atmospheric nitrogen 
ge : ptionatip existing bene the Bacteria and the plants 
s to be mutually beneficial and it is perpetuated from 
peneration ey generation ¢ throvgh the seeds since the Bacteria get — 
in the ovary itself. n further noted that the plants are 
ive i whi ve been found at all shoes 
to n the absen 
in the life ary of the plant. 
