22 Colorado Experiment Station 
again under the topic of “The Influence of Temperature on Seed 
Yields.”) 
The conclusion on the studies of space effect is that a unifonn, 
thin stand is desirable for best results in alfalfa seed production. 
The stand must be thin enough to give the plants a maximum oppor- 
tunity to bloom as fully as possible. 
GROWING ALFALFA IN ROWS FOR SEED PRODUCTION 
Many growers have sown alfalfa in rows, expecting to cultivate. 
The object in sowing in rows was to secure a uniform, thin stand for 
seed production. This method of seeding has been highly successful 
in securing a uniform, thin stand of plants. But it has not succeeded 
in solving the seed problem. 
There are some very serious objections to handling alfalfa in 
rows, especially if the roAvs are widely spaced. The chief difficulty 
is encountered in handling the crop with farm machinery, if the 
rows are thirty to forty inches apart. The soil between the rows 
will become low as it is washed out by rain or irrigation or blown 
out and drifted into the crowns. These causes leave the field 
rough and uneven. On such land it is very difficult to harvest a 
crop. The outer branches from the row will lie over on the ground. 
A field of Grimm alfalfa seeded in 20 -inch rows. On this field the tests on cultivation, root 
pruning and top clipping were carried out. 
