The numerous failures in getting good stands of the cultivated grasses, and the serious losses resulting, has induced us to make trials during the past two years to ascertain what influence time of sowing and depth of sowing has, on securing good crops.
Bulletin No. 15, issued one year ago, treats of the time of sowing and experiments made during 1892, give us indications relative to the depth of covering grass seed.
The spring was rainy and the ground wet; seeding could not be done until April 9th, when operations begun. Red clover, Timothy, Bromus Inermus and Tall Meadow Oat grass, were sown at that date, as follows: A plat of each one rod square was covered one-half inch deep, by raking the seed in. A plat of each was sown in furrows, made one inch deep, and covered with the hoe. A plat of each was sown in furrows two inches deep, and covered in the same manner, and a plat of each was put in furrows three inches deep.
Wilson, James and Curtiss, C. F.
"Depth of covering grass seed,"
Bulletin: Vol. 2
, Article 7.
Available at: https://lib.dr.iastate.edu/bulletin/vol2/iss19/7