60 



Wheat. Broadbalk Field, 1915-17. Produce. 



Note. — The top portion (western half) was fallow in 1914 owing to the weedy 

 condition of the field. The bottom portion (eastern half) was fallow in 1915. 

 * 20 years, 1893-1912. 



Wheat. Broadbalk Field, 1915-17. Manures. 



Plot. 



1915 and 1916. 



2 



3 



5 



6 



7 



8 



9 

 10 

 11 

 12 



13 

 14 

 \5 



16 



17 ) 



18 1 



19 

 20 



Farmyard Manure 



Unmanured 



Complete Mineral Manure 



As 5, and single Amm. Salts ... 



As 5, and double Amm. Salts 



As 5, and treble Amm. Salts .. 



As 5, and single Nitrate Soda 



Double Amm. Salts alone 



As 10, and Superphosphate ... 



As 10, and Super, and Sulph. Soda ... 



.As 10, and Super, and Sulph. Potash 

 As 10, and Super, and Sulph. Magnesia 

 Double Amm. Salts in Autumn and 



IMinerals 

 Double Nitrote and Minerals ... 



Minerals alone, or double Amm. Salts 

 alone, in alternate years 



Rape Cake alone 



Mineral Manure (without Super.) and 

 Amm. Salts 



1917. 



Farmyard Manure 



Unmanured 



Complete Minerals (I'otash omitted) 



As 5, and single Amm. Salts 



As 5, and double Amm. Salts 



As 5, and treble Amm. Salts 



As 5, and single Nitrate Soda 



Double Amm. Salts alone 



As 10, and Superphosphate 



As 10, and Super. (Sulphate of Soda 

 omitted) 



As 10, and Super. (Potash omitted) 



As 10, and Super. (Magnesia omitted) 



Double Amm. Salts in Autumn, and 

 Minerals (Potash omitted) 



Double Nitrate and Minerals (Potash 

 omitted) 



(Minerals alone (Potash omitted), or 

 double Amm. Salts alone, in alternate 



I years 



Rape Cake alone 



Sulphate of Soda. Sulphate of Mag- 

 nesia, and Sulphate of Ammonium 



Note. — No Autumn manures were applied for the 1915 crop : dressings were 

 given in the Autumn of 1913, but not in 1914 as that half of the field was 

 then left fallow. In 1916. Sulphate of I'otash being short, the dressing was 

 in each plot made up with the required amount of woodash. 



Errata.— Plot 19, 1917. for "Rape Cake only" read "Rape Cake omitted." 

 there being none applied in this year. 



