57 



Effijct of Serapin/3; on Soil .VSoigture . 



Warrenton (Physical Properties of Soils, 103) states 

 that during six winter months, fOctob-jr to f/arch) the 

 evaporation from & wat6>r aurfac© n«iir Lj.idon 'a-^s 4,8 inches, 

 and from a bar© field at Rothamstead was 4.8 to 5.2 inches, 

 Turing the* six suruner months the ©vaporation v.&sj 15.9 inches 

 fropi Vne former and 11. 1 to 11.5 inches fron r.hR matter. 



At the r,^isconsin Station fliept. 8, 105) '.he* diffsr^inee 

 in ffloisturft was dfetterruned bet\\e^n rolled and ciutivated 

 plats. Tii6 land was pxov.ed in th*-' ej rmf; and th© plats 

 ait-irnated. The results follow in Table J'XI . 



Table XXI : Comparison in Moisture Content between 



Iioll'sd and Cultivat-E^d Land ; First Foot. 



Date Rolled Cultivated 



/-■ /" 



May 29 ±5.4 17.2 



June 9 13.6 16.9 



June 17 ±2.0 ' '^^ xQ.O 



June 20 15.0 ly.O 



July 17 11.6 14.1 



The s-seond and third feet showed a difference in favor 

 of the eultiva'ced piats but was less worked than in the first 

 foot. 



