EXPERMENT STATION REPORTS. 229 



on a late snow in the f^prino- of 1921, with a good stand as a result. How- 

 ever there was not sufficient growth made to justify removing it when the 

 clover was mowed in June. 



In March 1021 a straw mulch was placed around each tree in Plots 

 2 and -5. The straw was applied in a circle six to eight feet in diameter 

 and about six inches deep, riot 1 was plowed May 18, 1J)21, and dragged 

 five times during the growing season. July 29 a cover crop of rye and 

 vetch was sown. 



The alfalfa in Plots .">, 4 and 5 were clipped three times during the 

 year. All three clippings were removed from Plot o. The first clippings 

 from Plot 4 and 5 were placed around the trees as a mulch. The second 

 and third clippings were removed as a ha^^ crop. 



An application of one-half jxjund of nitrate of soda per tree was ap- 

 plied to each tree in Plot 5. 



The following is the cost of each individual plot, beginning in March, 

 1921. Labor costs are calculated at ^Q.oO per hour for man labor and 

 |.60 per hour for man and team. 



Plot 1 (120 Trees) : Clean Culture urith Clover Crop 



Labor to 7/29/21 | 9.00 



Coist of rye and vetch 2.00 



Total cost of Plot I 11 .00 



Cost per individual tree .091 



Plot 2 (120 trees) : Clover with mraiv Mulch 



.']0-150 lbs. Baled straw at ^0.00 1 18.00 



:5 qts. clover seed Ut -^0.20 GO 



Straw— one load (a 7.00 7.00 



Wire screens placed around trees :).()0 



Labor 3.75 



Total cost of plot 32.95 



Cost per individual tree .273 



Plot 3 (90 trees) : Alfalfa with Htraiv Mulch 



24-150-lb. bales straw at 1.00 ^ 14.40 



Straw mulch, 1 load (a 5.50 5.50 



Wire screen iplaced around trees 2.88 



Labor 10.20 



Total cost of plot I 32.98 



Cost per individual tree .353 



\'alue of alfalfa removed 2500 lbs. (n |25 T |? 31.25 



Value of alfalfa removed 5U0 lbs. (a ^'2r^ T 0.25 



Value of alfalfa removed 2000 lbs. % |25 T 25.00 



Total value of alfalfa removed I (52.50 



Total co;st of plot 32.98 



Net profit ^ 19.52 



Plot 4 (90 trees) : Alfalfa witli Alfalfa Mulch, the Second and 

 Third Clippings being Removed from the I'lot. 

 Labor, mowing, raking, cocking, hauling | 0.00 



