was put down to a permanent manurial experiment. The E-field is divided into 

 9 sections, which, in turn, are each subdivided into 8 plots of 60 sq. yds. (approx) 

 area, each of which receives the same annual manurial dressing viz: — 

 Plot 1 of each section, Potash, as Carbonate of Potassium, 



2 „ „ „ Nitrogen, as Nitrate of Soda, 



3 „ „ „ Phosphoric Acid, as Superphosphate, 



4 „ „ „ Potash, Nitrogen and Phosphoric Acid, 



5 „ ,, ,, Unmanured, 



6 „ „ „ Potash and Nitrogen, 



7 „ „ „ Potash and Phosphoric Acid, 



8 „ „ „ Nitrogen and Phosphoric Acid. 



The different sections are separated from each other by 1 yard paths and the individual 

 plots by ' 2 yard, while border plots are separated from the main paths of the 

 experimental field by protection-belts of a breadth of 1 yard. Until the year 1897 

 four sections were, year in year out, laid down to the same crop, the others 

 being cultivated in accordance with a definite rotation. In 1897, however, on 

 account of the attacks of nematodes, the permanent cultivation of oats and peas had 

 to be given up, and the following rotation covering all nine sections was inaugurated. 



1. Peas 3. Rape 5. Mangolds 7. Kindey Beans 



2. Rye 4. Winter Wheat 6. Barley 8. Potatoes ^- ^P'''"^ ^^^"^ 

 Rape was replaced, first of all, by flax and later by horse-beans, so that from 

 1902 onwards, horse-beans follow rye, and are succeeded in turn by wheat. 



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