i6 The Colorado Experiment Station 
them when cured, it would be far better to stack them in neat stacks 
so as to prevent loss by blowing, discoloration from weather condi¬ 
tions and also to leave the land free for cultivation. If the beans have 
been properly shocked, there will be very little shattering in stacking 
as the stacking can be done early in the day, or loss may be prevented 
by covering the hay rack or bean rack with canvas. In building a 
stack a bottom should be made with straw and the stack should be 
topped out with straw and weighted. If straw or millet is not at hand 
to be used for this purpose, a stack cover of canvas or corrugated iron 
will be advisable if any considerable time is to elapse before thrashing. 
The harvesting process, together with summer cultivation, leaves 
the land in excellent shape for fall planted crops such as wheat, or 
even for spring planted crops as plowing is not necessary after the 
tillage given the beans. 
THRASHING 
Beans split very easily unless handled with care. Split beans are 
docked on the market. Consequently, tools should be used which split 
the minimum of beans. It is for this reason that the regular bean 
hullers or bean thrashers should be used for thrashing the crop. 
There are a number of manufacturers having bean hullers on 
the market. It is possible by using some of the modern attachments 
to thrash beans with the regular grain separator. This should not be 
done unless a bean huller is so expensive, acreage considered, as to 
make it inadvisable. Where the grain separator is used to thrash 
beans, special attachments are put in and the cylinder is run at a very 
slow speed. Usually all the concave teeth with the exception of one 
row are removed. 
Where a grower has only one-half an acre, or one acre, it is 
sometimes easiest and cheapest to thrash out his beans with a flail. 
Fifteen to eighteen hundred pounds a day can be thrashed out in this 
wav by a single man. 
Very few of the thrashing machines on the market will properly 
clean beans for the market. Consequently, machines called bean clean¬ 
ers have been devised to clean up the beans ready for marketing. If 
any considerable acreage is grown, it would pay to have a Uan cleaner 
to clean the thrashed beans before they are put on the market. Where 
only small acreages are grown, neighbors might well co-operate in 
the purchase of a cleaner, as one cleaner would do the work for several 
small growers. 
