l6 MANURING EXPERIMENTS WITH PADDY RICE (SECOND YEAR). 
These researches were made on 12 plots which were supplied, 
before sowing the genge, with a large quantily of phosphoric 
acid and potash ; 9 out of the 12 plots received also lime in 
various quantities (20, 30, and 40 kilogrms. per tan). In spite 
of the imperfect development of genge the green manure pro¬ 
duced a distinct and not inconsiderable effect on the yield of 
rice on all those plots which received lime. 9 
Before the rice was cut in 1889, genge was again sown on 
the same 12 plots, and showed a fair development in the 
autumn. During the winter it was covered with a little straw 
to prevent the young plants from being thrown up by frost. 
On the 9th and 10th of May 1890, when these were in full 
blossom, they were cut, weighed, and mixed with the soil. 
The amount of green manure thus obtained was as follows, 
average of three plots : 
Lime applied to the preceding- 
crop, kilogrms. per tan . 
0 
10 
20 
40 
Green genge, grms, per plot 
840 
00 
I 5 2 7 
1257 
,, ,, kilogrms. per tan ... 
1008 
1858 
1832 
1508 
Genge requires accordingly some 
lime 
in the 
manure, but 
even on our soil so rich in humus and inclined to sourness, 
10 kilogrms. per tan were quite sufficient. 
According to an analysis made in 1891, we found in flower¬ 
ing genge plants 12.23 % of dry matter and 0.369 % of nitrogen. 
Hence the approximate content of the crop harvested on the 
9 plots supplied with lime, was per plot 212 grms. of dry matter 
and 6.40 grms. of nitrogen, i. e. per tan 254 kilogrms. of dry 
matter and 7.7 kilogrms. of nitrogen. These figures do not, 
however, represent the content of the whole plants, as they 
do not comprise the stubbles and roots left in the soil. 
Before transplanting the rice, phosphoric acid (11 kilogrms.) 
and potash (11 kilogrms.) were again applied, the former as 
sodium phosphate, the latter as carbonate. In order to study 
the influence of lime on the action of the green manure, the 
9 See bulletin No. 8, p. 7, 8, and 12. 
