SUCCESS OF THE VARIOUS SPECIES 45 



worked lightly into the ground by means of a brush or wooden- 

 peg harrow, or trampled in by sheep. 



RESULTS OF THE TESTS 



Success of the Various Species. — Of the 449 original widely 

 scattered seeding tests under way at one time, 168, or 37.42 

 per cent, were failures; 112, or 24.95 P^^" cent, were partial 

 successes; 71, or 15.81 per cent, were fully successful; 64, or 

 14.25 per cent, were undeterminable at the end of the obser- 

 vational period; and in 34 experiments, or 7.57 per cent of the 

 total, the results were not dehnitely declared. 



By far the best results immediately following reseeding were 

 obtained with timothy, 64.4 per cent of all trials being successful 

 or partially successful. Next in the order of successful results 

 were Hungarian bromegrass with 58.14 per cent, perennial 

 ryegrass with 50 per cent, Italian ryegrass with 37.5 per cent, 

 Kentucky bluegrass with 31.82 per cent, and redtop with ^,^-33 

 per cent (Figs. 9 and 10). It is significant that the more drought- 

 enduring species, such as Hungarian bromegrass, rank among 

 the first in the successful seeding. 



Few of the broad-leaved herbs gave economical returns. 

 White and Alsike clovers, however, did best. These clovers, 

 like Kentucky and Canada bluegrasses, redtop, and certain 

 other sod-formers, are slow to become established, but once they 

 gain a foothold they are not readily killed out. In general, 

 the best results were obtained from the tests in the Northwest, 

 where the rainfall is moderately heavy; the poorest results fol- 

 lowed the tests in the Southwest, notably in the lower and drier 

 sites.^ 



Since the results of the original 449 reseeding tests were de- 

 clared, the writer has conducted a large number of trials in the 

 Wasatch Mountains of central Utah. The cultivated species 

 most extensively used were Alsike and white clovers, Hungarian 

 bromegrass, Italian ryegrass, Kentucky bluegrass, orchard- 

 grass, redtop, and timothy. 



1 As pointed out, no cultivated plant yet discovered can be successfully seeded 

 in the hot, dry foothills, such as characterize large areas in the Southwest. 



