i8 
MANURING EXPERIMENTS WITH PADDY RICE (SECOND YEAR). 
Nitrogen in the whole crop 
l 
per plot, 
per tan, 
grms. 
kilogrms. 
Without nitrogen. 
••• 7-43 
8.92 
Genge without lime . 
... 8.18 
9.82 
,, + 10 kliogrms. lime ... 
... 11.84 
14.21 
,, + 20 ,, ,, 
...xi.52 
13.82 
>> + 4 ° >> >> 
...12.18 
14.61 
Complete manure. 
...12.46 
I 4-95 
In the average of the 9 plots which had been cultivated with 
genge and manured with 10—40 kilogrms, of lime the total 
nitrogen assimilated by rice per tan was accordingly 14.21 
kilogrms. while from the three plots without nitrogenous 
manure only 8.92 kilogrms. was taken up. Hence, 5.29 kilo¬ 
grms. had been rendered available for rice by genge and lime. 
Assuming the available nitrogen to have been converted before 
its consumption into ammonical compounds from which, ac¬ 
cording to our previous researches 62.2 % can be taken up by 
rice, we find that about 8.5 kilogrms. of nitrogen was rendered 
available by the fixation of free nitrogen from the air in the 
leguminous manure and by the action of lime on the latter as 
well as on the nitrogenous constituents in the soil. This 
quantity is, indeed, very large, and, as demonstrated by our 
experiments, suffices for maximum yield of rice. Truly, the 
cultivation of genge if rationally carried out, is very remuner¬ 
ative, and deserves to be far more extended in the rice growing 
districts than it is at present. 
Whenever it is intended to raise genge for green manuring 
it must not be forgotten that this crop also requires some 
manure, especially phosphoric acid and lime. Hence the 
rice preceding the genge should receive, in addition to the 
ordinary manure per tan about 4—6 kilogrms. of available 
phosphoric acid in the form of superphosphate, precipitated 
calcic phosphate or Thomas phosphate, and 20—50 kilogrms. 
of lime, unless the land has been previously dressed with this 
manure. Instead of lime also wood ashes will serve the 
