38 BULLETIi^ &i3, U. S. DEPARTMENT OF AGRICULTURE. 
Table XXIII. — Binder twine requirements, spring and ivinter wheat, 1919 (481 farms). 
State and county. 
North Dakota: 
Grand Forks County. 
Morton County ". . 
South Dakota: 
Spink County 
Minnesota: 
Clay County 
Traverse County 
All spring wheat . 
Kansas: 
Ford County 
Pawnee County — 
McPherson County. 
Missouri: 
Saline County 
Jasper County 
St. Charles County. 
Nebraska: 
Phelps County 
Saline County 
Keith County 
All winter wheat. 
Per cent | 
of .\mount 
acreage ; used per 
cut with acre, 
binder. 
100 
10 
100 
100 
83 
100 
100 
100 
100 
77 
66 
Pounds. 
1.91 
1.32 
2.21 
2.00 
2.03 
3.49 
3.23 
2.80 
2.85 
2.32 
2.26 
2.68 
3.69 
2. .31 
Cost per 
pound. 
Cost per 
acre. 
$0.29 
.25 
25 
.22 
.23 
.25 
.24 
$0.57 
.33 
.50 
.50 
.51 
.87 
.91 
.64 
.66 
.53 
.55 
.63 
.87 
MANURE AND STRAW. 
•When manure is applied to a particular crop, other crops following 
in the rotation get part of the benefit. This cost then should be 
distributed among the different crops grown. When applied directly 
to wheat; 50 per cent of the estimated value was charged; when 
applied to the crop imXnediately preceding, 30 per cent was charged; 
and when two other crops preceded, 20 per cent was charged .to the 
wheat. 
The largest number of farmers reporting the use of manure (80 
per cent) was for Saline County, Nebr., while the smallest number 
was for Keith County, Nebr. In Ford County, Kans., and Keith 
County, Nebr., only 1 per cent of the total wheat acreage was 
manured. Farmers in these counties regard manure and straw of 
more value for top dressing to conserve moistui-e and prevent ^^ blow- 
ing" of the land than as a fertilizer. In these two counties not 
enough moisture is available to make manui'e valuable as a fertilizer. 
For the spring-wheat districts 8 per cent of the total wheat acreage 
received an application of manure and straw, while for the winter 
wheat only 5 per cent of the total acreage was covered. (See Table 
XXIV.) 
GREEN MANURE. 
In St. Charles County, Mo., it is a common practice to plow under 
a certain number of acres of new clover seeding each year. Corn 
is usually grown on this land for one or two years, followed by wheat 
for one or two yeai's more. It will be readily seen that this practice 
