DITISIO?f OF FIELD Hl'SBAXDRY 



241 



?ESSiOrs'AL PAPER No. 16 



Application of Barnyard Manure for Corn. 



Plot No. 



1 

 2 

 3 

 4 



5 

 6 

 7 



8 



9 



Application of manure. 



Yield of 

 corn per 



acre, 



1913. 



No manure, plough second-year stubble in 

 in autumn 



Apply in autumn after ploughing second- 

 year stubble, work in at once 



Apply in spring, on autumn ploughed second- 

 year stubble, work in at once 



Apply in autumn on sccond-jear stubbie, 

 plough under in autumn 



Apply in spring en second-j-ear stubble, 

 plough under in spring 



Apply in winter on scccnd-year stubble, 

 plough under in spring 



Apply in winter green manure (cut straw) 

 on second-year stubble, plough under in 

 spring 



Apply in winter green manure (cut straw) 

 on summer-fallow, disc in 



Yield of 

 wheat per 



acre 



following 



corn, 1912. 



Tons. Lb. iHush. Lb. 



13 1070 

 11 1920 

 Summer-fallow, no manure i 15 1200 



11 1040 



12 9G0 

 11 800 



10 1890 



11 80 



12 900 



25 

 23 

 20 

 IS 

 24 

 20 



22 

 30 

 42 



00 

 20 

 00 

 40 

 40 

 40 



00 

 40 

 40 



Yield of 

 wheat per 



acre 



following 



wheat, 1912 



Value of 

 crops per 



acre for 



entire 



rotation. 



Bush. Lb. 



14 

 12 

 18 

 IG 

 14 

 10 



40 

 00 

 00 

 00 

 00 

 40 



10 00 



Summer- 

 fallow 



22 

 21 

 21 

 20 

 21 

 24 



10 



90 

 53 

 19 

 35 

 03 



23 07 

 20 14 

 26 98 



Applicatio7i of harnyard manure for wheat. 



In this experiment there is followed a rotation of summer-fallow, wheat, wheat. 

 In the case of plots 2 and 4 the manure is applied to affect the wheat crop after sum- 

 mer-fallow, whereas in the remaining plots it is applied to aifeot the second wheat' crop 

 of the rotation. To make a fair comparison of the different methods of application it 

 ia therefore necessary to average the yields for the two crop producing years of the 

 rotation. 



Applicatiox of Barnyard Manure for Wheat. 



Plot No. 



3 

 4 

 5 

 6 



7 

 8 

 9 



Application of manure. 



Yield of 



wheat 



per acre 



on wheat 



stubble. 



Yield of 

 wheat 

 per acre 

 on summer- 

 fallow. 



Bush. Lb. Bush. Lb. 



Apply in winter green manure (cut straw) on first-year 

 stubble, disc in 



Apply in winter green manure (cut straw) on summer- 

 fallow, disc in 



Top dress, with spreader, grain sown on first^year stubble 



Top dress, with spreader, grain sown on summer-fallow 



No manure, plough first-year stubble in autumn 



Apply on first-year stubble, plough under in autumn.. 



Apply on first-year stubble, plough under in spring 



No manure, disc first-year stubble in autumn 



No manure, burn first-year stubble 



Average 

 yield of 

 wheat 

 per acre 

 for entire 

 rotation. 



Bush. Lb. 



IG 40 



17 

 20 



16 

 16 

 26 

 19 

 20 

 34 



20 

 00 

 40 

 40 

 00 

 20 

 00 

 00 



34 



42 

 39 

 40 

 38 

 38 

 38 

 38 

 38 



00 



00 

 20 

 00 

 00 

 40 

 00 

 00 

 40 



29 

 29 

 28 

 27 

 32 

 28 

 29 

 36 



20 



40 

 40 

 20 

 20 

 20 

 40 

 00 

 20 



Ikdiax Head. 



IC— 16 



