10 
Colorado Agricultural Experiment Station 
Irrigation by Flooding .—The general practice of irrigating alfalfa 
by surface flooding, has succeeded well in growing hay, but the ten¬ 
dency is generally towards getting the soil too wet for good results 
tor seed production. Where land has been flooded for a number of 
years the sod becomes compacted, and will crack, and dry very rapidly, 
t irrigated it easily becomes too wet, making it next to impossible 
to regulate the moisture conditions suitably for seed production where 
land is flooded. 
by .?rfk«aood'T£^ in , a thick «“<« “Sated 
Combining Hay and Seed Production —Experience has shown 
that it is not practical to combine the production of hay and seed from 
he same field, because of the different moisture requirements for each 
1 he success of the hay crop almost precludes the chance of the success 
• , eYet ’ there Is usually a light growth of hay in connection 
with alfalfa seed growing, as the season in Colorado is not' long enough 
to mature two crops of seed in one year. s 
Alealea in Rows for Seed Production 
Growing alfalfa in rows with intertillage, for seed production is 
not a new idea, but it is practically new in Colorado. Until the Ex- 
