63 



Little Hoos Field 



PLAN OF ROTATION PLOTS 



Arranged to test the RESIDUAL VALUE of VARIOUS MANURES in 

 one, two, three, and four years after their application. Produce per acre. 



A 1 



1915 (12th Season) 

 Mangolds. 



'l9l6 (13th Season). 

 I Wheat. 



1917 



(14th Season). 



Clover. 



Roots. 



Lea 



^^ipr'd'ce 



Dress- 

 I ed 

 'Grain. 



c.^... Total 

 Straw- Prd-ce. 



1st 



2nd 



Crop. : Crop, 



Total. 



3 -! 



B 1 



2 



3 

 4 

 3 



C 1 



2 

 3 

 4 

 5 



D 1 



Tons. 

 Control ... ... 5' 36 



I (I j 9-44 

 Dung (ordinary) h j 11 66 

 16 tons per acre . c 

 [U 



Dung (cake fed) a 

 Control ... 



Dung (cake fed) ' ' 



16 tons per acre ( . ; li-M 



3 - 



E 1 



2 

 3 

 4 

 5 



Shoddy956lb.per f a 

 acre ... ... I ft 



Control ... 



Shoddy 95A lb. per / c 

 acre ( </ 



Guano 776 lb. per ' \ 



acre ... .. j 



( c 



Control ... 



Cuano ... ... d 



Kape Cake 1036j b 

 lb. per acre ... 1 c 

 ( d 

 Control ... 



517 

 642 



723 

 871 



Tons. ; 

 2 03 

 2- 16 



215 

 197 



2 92i 



I 

 2-44 

 2-20\ 

 2-38 

 2-47 



3 02 



1 99 : 



215 ! 



2 39 

 2 56 

 2 79 



Tons. 

 7 39 

 1160 

 13 91 

 1134 

 1645 



11-96 

 9 3S 

 15-58 

 14-28 

 1829 



716 

 8-57 

 9 26 

 9 -79 

 1150 



Bush. 



20 7 

 284 



26 8 

 257 

 276 



340 



21 3 

 111 

 26 6 

 295 



cwt. 

 /9 / 

 304 



26 6 

 251 

 289 



34 1 



i7 4 



28 3 



27 1 

 29 -6 



lb. 

 3192 

 5292 



4766 

 4520 

 5040 



6003 



3324 

 4952 



4772 

 5135 



2668 



1961 

 2523 

 2800 

 2923 



cwt. 

 197 

 382 

 31-7 

 26 2- 

 31 9 



cwt. I cwt. 

 22 2 \41 9 



274 i 65-6 

 277 i 59-4 



266 

 26- 1 



17-6 

 186 

 20 7 

 197 

 176 



240 

 217 



24 6 



25 1 

 266 



194 ! 274 



18 6 I 240 

 217 '25-6 

 20 4 ! 27.2 



19 7 290 



186 ' 25 6 



18 9 261 



19 7 i 24 3 

 20-2 I 282 

 24- r 28 5 



52-8 

 580 



41-6 

 403 

 45 3 

 448 

 442 



46-8 

 426 

 47-3 

 47-6 



48- 7 



442 

 45 

 440 

 484 

 526 



It received its dressings in 1912, 1916. 

 b ,, ,, 1<)13. 



c received its dressings in 1910. 1914. 

 <i ,. .. 1911, 1915. 



NOTKS .\S TO M.VNUKES 



The five plots of Series .\ to E which deal with 

 nitrogenous manures received cross dressings as 

 under: — 



1904 3 cwt. Superphosphate per acre. 



1906 3 cwt. Sulphate of Potash ditto. 



1907, 1908, 1909 3 cwt. Superphosphate, each year. 



1911 ditto plus 200 lbs. Sulphate of Potash, but 

 no cross dressings have been applied since. 



The five plots of Series F to H dealing with Phos- 

 phatic Manures received dressings as under: — 

 1904 1 cwt. Sulphate of .Ammonia. 

 K05 ditto. 



1906 2 cwt. ditto plus 3 cwt. Sulphate of Potash. 



1907 1 cwt. Sulphate of .Ammonia. 

 1908-10 ditto. 



1911 ditto plus 200 lbs. Sulphate of Potash. 



1912 1 cwt. Nitrate of Soda. 



1914 1 cwt. Sulphate of .\inmonia. 

 1915-16 ditto. 



Clover was grown over the whole field in 1917; no manures applied in Autumn 1916 nor in Spring 1917. 



Thirteen tons of dung per acre was used on \ and B for 1916 crop. 



Figures in italics denote the unmanured plots. 



The yields on the plots to which the manure was applied in a given vear are printed in heavy tvpe. 



In 13th season plots .\ and B were sown Nov. 24, 1915. C to H were sown Feb. 17. 1916. 



