134 FORAGE PLANTS AND THEIR CULTURE 



The data in Par. 88 also refer largely to timothy or 

 timothy mixtures. 



At Cornell Experiment Station extensive fertilizer trials 

 with timothy have been conducted. The largest yields 

 were obtained by using 20 tons of barnyard manure and 

 very good results by using 10 tons an acre. In all cases, 

 the influence of nitrate of soda was very marked. The 

 most satisfactory commercial fertilizer was found to be 320 

 pounds nitrate of soda, 320 pounds acid phosphate and 80 

 pounds muriate of potash an acre. The results indicate 

 that a still smaller proportion of acid phosphate would 

 have been economical. 



120. Lime. On Dunkirk clay loam at the Cornell 

 Experiment Station, applications of lime did not increase 

 the hay yield. 



At the Rhode Island Experiment Station top-dressings 

 of lime exercised but little influence, but it was well marked 

 when the lime was harrowed into the soil. 



In the rotations at the Pennsylvania Experiment 

 Station burned lime alone actually reduced the yields of 

 grass (timothy and clover), but ground limestone and 

 gypsum each increased the yield slightly. 



121. Irrigation. Timothy is grown with marked 

 success on irrigated lands in the West. An abundance of 

 water is necessary, as timothy is quickly injured by an 

 insufficiency. Extensive experiments on timothy under 

 irrigation have been conducted at the Utah Experiment 

 Station, where it was found better to apply water at fre- 

 quent intervals. On plots irrigated at intervals of 3, 6, 9, 

 12, 15 and 18 days, the total amount of water being the 

 same, the total yields of hay to the acre for the three years 

 were respectively 3640, 4380, 4360, 4340, 4080, 3555 and 

 2100 pounds. 



