198 



EEPOET — 1869. 



Experiments on the Grovrtli of Barley. 



Plot [(4)4AAS] dressed with artifician 

 manure, and affording the maximum I 

 yield J 



Average of two plots (1 O and 61) tin- \ 

 manured continuously during the seven- I 

 teen years J 



Difference in favour of the manured 1 

 plot J 



Wheat. — Area under experiment about 13 acre.s, made into 20 plots. Wheat 

 sown on the same laud, without intermission, for twenty-five years. Nearly the 

 same description of manure on the same plot each year, especially during the last 

 seventeen years, to which term the following- experiments were limited : — 



Experiments on the Growth of Wheat. 



Plot [16 (a and h)] dressed with artificial "1 

 manure, and att'ording the maxitnum ■ 

 yield J 



Average of two plots (.'J and 20) nnma- 

 nured continuously during the seven- \ 

 teen ytars J 



Difference in favour of the manured "1 

 plot ) 



Produce per Acre. 

 Average of Seventeen Years, 1852-68. 



Dressed Corn. 



[Bushels. 

 14f 



24^ 



lbs. each. 

 S7\ 



Total Straw. 



cwt. 

 46^- 



14 



32i 



I will conclude this sketch -with an abbreviated account of a series of rotation 

 experiments extending' o^'er twenty years, 1848-G7 inclusively. An area of 2^ acres 

 was divided iaito three plots, ea.ch was sown alike year by year, iind in this order of 

 succession : — First year, turnips ; second year, barley :* tliird year, beans ; fourth 

 year, wheat; the fifth, turnips; again and so on throughout tlic twenty years. 

 Plot 1 was unmanured continuously. Plot 2 manured with phosphate of lime for 

 the turnips only, consequently this was manured once iu four years. Plot 3 

 treated -with complex manure (artificial entirely) for the turnips only, and therefore 

 once in four years lilce No. 2. 



The average results for tlie corn and roots are given below ; the straw and leaf 

 produce are omitted. 



Crops in Eolation . 



1st. Swedisli turnips ... cwt. 



2nd. Barley bshls.* 



Mrd. Beans , * 



4tli. Wheat * 



Corn or Boots Produced on 



Plot 1. 

 Unmanured 

 continually. 



26i 

 41 ,V 



33 



* All dressed corn. 



