TIMOTHY 



135 



An oversufficiency of water is less injurious than too 

 little. Where the soil was saturated respectively 4, 3J, 2J, 

 2 and If feet, the total acre yields for three years were 

 respectively 6040, 3900, 7020, 3580 and 4750 pounds of 

 hay. 



. In another experiment the ground was saturated 

 respectively 31, 27, 33, 12 and 17 inches deep, and the 

 corresponding yields per acre were 3576, 6496, 6096, 1070 

 and 2260 pounds. 



In a different series of experiments the results are thus 

 tabulated : 



It will be noted that 15 inches of water reduced the yield 

 somewhat, a result also secured with orchard-grass, brome 

 and Italian rye-grass. According to the above figures 30 

 inches of water on one acre will yield but 6054 pounds 

 of hay; spread over two acres 7688 pounds; and over 

 four acres 11,928 pounds. 



Irrigation by means of a network of lateral ditches gave 

 higher yields than by any other method of applying the 

 water. 



Irrigating in the, day time, 10 A.M., proved better than 

 irrigating in the evening. The average yields for three 

 years were respectively 3033 and 2033 pounds. 



Irrigating timothy fields both in the fall and in the 

 spring increased the yield over spring irrigation alone an 

 average of about 25 per cent during four seasons. 



