28 EXPERIMENT STATION RECORD. 



Mechanical analyses' of the soil are given in the following table: 

 Mechanical analyses of the soil ai different depths. 



Organic matter, loss on ignition. 



( !oai w gravel 



Fine gravel (2 i<> l mm.) 



sand lit" 0.5 nun.) 



Medium sand (0.5 to 0.25mm.) ... 



Fine sand (0.25 to 0.1 nun.) 



Y.T\ line smiil (0.1 to 0.05 mm.). 



Silt (0.05 tod. ill nun.) 



Fine silt (0.01 to 0.005mm.) 



Claj (0.005 too.ooul mm.) 



Total 99.946 



100.078 100.098 



Tables record weekly observations on the rainfall aurt the moisture 

 content to depths of 4 in., 4 in. to 1 ft., 1 to 2 ft., 2 to 3 ft., and 3 to 4 

 ft. on the different plats for the period from April 16 to October 23. 

 The rainfall during this period "was 27.77 in., or 3,141.45 tons of 

 water per acre. This amount of rain was larger than the quantity 

 necessary to supply the wants of the crops." 



The averages of the moisture determinations are given in the follow- 

 ing table: 



Average moisture content of soils, April 16 to October 23, 1S96. 



Bare cultivated soil: 



Spring plowed 



Fall plowed, subsoiled 



Fall plowed, not subsoiled. 

 Bare not cultivated : 



Spring plowed 



Fall plowed, subsoiled 



Fall plowed, not subsoiled. 

 Clover plats: 



Spring plowed 



Fall plowed, subsoiled . . . . 

 Fall plowed, not subsoiled 



Oat plats: 



Spring plowed 



Kail plowed, subsoiled 



Fall plowed, not subsoiled. 



Bailey plats : 



Spring plowed 



Fall plowed, subsoiled 



1- all plow cil, not subsoiled. 

 Beei plats: 



Spring plowed 



Fall plowed, subsoiled 



Fall plowed, not subsoiled . 

 ( 'mil plats : 



Spring plowed 



Fall plowed, subsoiled 



F'all plowed, not subsoiled. 

 Blue-grass past ure 



Surface 

 to 4 in. 



21. ( 

 21.' 

 20.! 



20.1 

 19.! 

 17.! 



19.1 

 19.! 

 18.1 



19.' 

 19. 

 17. 



19. 

 19. 



17. 



20. 

 21. 

 19. 



18. 



19. 

 18. 



10. 



4 in. to 

 lft. 



/'. /■ Cent. 



21. 19 



21.81 

 21.07 



21.41 

 21.03 

 19.77 



19.18 

 19.84 

 17. 53 



19.82 



19. 39 

 17.80 



19.72 



20. 15 

 17. 93 



20. 77 

 21.38 

 19.57 



19.55 



20. 45 



10.81 

 17.00 



1 to 2 ft. 



Per cent. 

 19.32 



19.97 

 19.47 



19.81 

 19.68 

 17.52 



18.59 

 17.59 



15.72 



18.47 

 17. 62 

 16. 12 



18.46 

 17.36 

 16.03 



18.23 

 19. 45 

 17.52 



17.74 

 18.67 



17.88 

 15.68 



2 to 3 ft. 



Per <■< nt. 

 17.14 

 17.96 

 16.69 



18.34 

 lti. 01 

 14.61 



17. 44 

 15.04 



13. 28 



15.96 



14. 25 

 13.16 



15. 13 

 14.55 

 12.66 



14.53 

 17.30 

 14.08 



14.16 

 16.32 

 15.05 

 12.24 



J'er cent. 

 15. 22 

 13.66 

 14.80 



14.65 



13. 02 



12. 75 



14. 92 



13. 58 

 11.58 



11.05 

 10.55 



11.08 



9.21 

 12.47 

 9.63 



10. 17 

 16.19 

 9. 99 



12.52 

 12. 34 

 10.87 

 11.94 



Average. 



Per cent. 

 18 20 

 18.34 

 18.06 



18.47 

 17.46 

 16.01 



17.56 

 16.52 



14.57 



16.32 

 15.49 

 14.55 



13.11 

 16.08 

 14.06 



15.90 

 18.56 

 15.30 



15.92 

 16.88 

 15. 83 

 14.55 



^lade by I. J. Mead. 



