310 



Elementary Principles of Agriculture 



Fig. 199. Wheat growing on plot No. 1, which has been merely double disced and 

 continuously seeded to the same crop. Compare with Figs. 200 and 201. 



446. All were planted on September 15th. On the 

 early plowed plot, germination was prompt and regular, 

 and the plants went into the winter with a good start, 

 and as a result grew off earlier in the spring and matured 

 their crop earlier. On the late plowed plots, germination 

 was slow and irregular, due to lack of moisture and the 

 unsettled condition of the soil. The following yields were 

 obtained : 



Date of Plowing. Yield per acre 



Early preparation July 19th 31.3 bushel 



Medium Aug. 15th 28 . 5 bushel 



Late Sept. llth 15.3 bushel 



447. The early breaking was worth about 25c a day 

 per acre over the late plowing. Results obtained at the 

 Kansas Experiment Station indicated similairly a gain 

 of about 40c per day in favor of early deep plowing, when 

 compared with late, shallow plowing. Results are usual- 



