May is, 1925 Plant Foods Eecoverable from Manure 987 
Table IV.— Analysis of urine a (both digestion trials) 
Animal 
First digestion trial Second digestion trial 
K 2 O P 2 O 5 
N K 2 O P 2 O 5 
N 
Cow No. I. __ __ _ __ _ 
Per cent Per cent 
1.050 0.003 
1. 460 . 004 
1. 660 .005 
1.490 .003 
; 
Per cent Per cent Per cent 
0. 370 1. 470 0. 004 
.663 1.310 .004 
. 794 1.760 .006 
. 734 1 1.530 .004 
1 
Per cent 
1.147 
1. 120 
1. 532 
1.286 
Cow No. 2__ __ 
Cow No. 3_ 
Cow No. 4_ _ _ 
a During both periods the urine and feces were carefully and separately collected, and separate analyses 
were made of composite samples of each collection. 
Table V.— Analysis of feces ° (both digestion trials) 
First digestion trial 
Animal 
Second digestion trial 
K 2 0 
P 2 0 5 
N 
K 2 0 
P2O5 
N 
Per cent 
Cow No. 1__ _ J 0. 050 
Cow No. 2. _ _ .050 
Cow No. 3_ .050 
Cow No. 4___ _ _ . 070 
Per cent 
0.140 
. 170 
. 160 
. 120 
Per cent 
0.340 
.318 
.312 
.280 
Per cent 
0. 080 
.090 
.070 
.060 
Per cent 
0.140 
. 160 
. 160 
.130 
Per cent 
0. 386 
.348 
.347 
.342 
a During both periods the urine and feces were carefully and separately collected, and separate analyses 
were made of composite samples of each collection. 
Table VI.— The daily urine and feces, and the constants contained therein 
FIRST DIGESTION TRIAL 
Animal 
Urine ! 
per 1 
day 
Feces 
per 
day 
K 2 O per day 
P 2 Os per day 
N per day 
In In 
urine feces 
Total 
In 
urine 
In 
feces 
Total 
In 
urine 
In 
feces 
Total 
Pounds 
Pounds 
Pound Pound 
Pound 
Pound 
: 
Pound 
Pound 
Pound 
Pound 
Pound 
Cow No. 1__ 
23. 90 
67. 59 
0. 2510 0. 0338 
0. 2848 
0.0008 
0.0946 
0. 0954 
0. 0884 
0.2298 
0. 3182 
Cow No. 2.. 
21.30 
56.40 
.3110 .0280 
.3390 
.0008 
.0958 | 
.0966 
. 1412 
. 1794 
.3206 
Cow No. 3_- 
14.45 
56. 48 
. 2398 .0282 
.2680 
.0008 
.0902 
.0910 
. 1148 
.1774 
.2922 
Cow No. 4__ 
12. 85 
77. 75 
. 1914 ! . 0547 
1 
.2461 
.0004 
.0932 
. 0936 
.0944 
.2174 
.3118 
SECOND DIGESTION TRIAL 
[ 
Cow No. l__ 
22.40 
65. 50 
0. 3292 
0. 0524 
0. 3816 
0.0010 
0.0916 
0.0926 
0.2568 
.2528 
0. 5096 
Cow No. 2_- 
21.95 
52. 90 
.2874 
.0476 
.3350 
.0008 
.0846 
.0854 
.2458 J 
. 1840 
.4298 
Cow No. 3-_ 
14. 90 
46. 80 
. 2622 
.0328 
. 2950 
.0008 
. 0748 
.0756 
.2282 
. 1624 
.3906 
Cow No. 4_. 
19.00 
58. 80 
. 2906 
.0352 
.3258 
.0008 
.0764 
.0772 
.2444 
.2010 
. 4454 
Table VII, based on all the data in 
the preceding tables, is given to facili¬ 
tate a comparison between the daily 
milk production and the quantities of 
potash, phosphorus, and nitrogen re¬ 
covered daily in the liquid and solid 
manures. 
