12 Experiments with Humogen. 



SERIES II continued. 



Tests with Mustard, Italian Rye Grass, and Dwarf French Beans, sown 



August 22 continued. 



OBSERVATIONS RECORDED DURING GROWTH. 

 MUSTARD. 



From the commencement of growth the Complete Fertiliser and Greenford 

 Humogen (10%) sections were quite the most promising, for both colour 

 and amount of foliage, and this superiority was maintained until mid-October, 

 when the low night temperature rendered further notes unavailing. At the 

 last named period the order of merit was as follows : 

 . I Complete Fertiliser. 

 ) Greenford Humogen, 10%. 

 ( Farmyard Manure. 

 Bone Meal (Bottomley's). 

 Greenford Humogen 5%, with Bone Meal. 

 Greenford Humogen 2^%, with Bone Meal. 

 Manchester Humogen (new) 10%, with Bone Meal. 

 Manchester Humogen (original) 2|%, with Bone Meal. 

 Manchester Humogen (original) 5%, with Bone Meal. 

 Manchester Humogen (original) 10%, with Bone Meal. 

 Manchester Humogen (new) 2j%, with Bone Meal. 

 Manchester Humogen (new) 5%, with Bone Meal. 

 There was no. perceptible difference to record in the condition of the 

 remaining sections. 



The addition of Bone Meal to the Manchester Humogen (original supply) 

 brought about but very little improvement. There was also no advantage 

 to be seen in the Manchester Humogen (new supply) with Bone Meal over the 

 original material with Bone Meal. 



ITALIAN RYE GRASS. 



There was little to choose between the various sets until September n, 

 when the trials with Complete Fertiliser and Greenford Humogen (10%) 

 made noticeable progress. By September 18 these two sections held a striking 

 lead over all others for height of plant and colour of foliage, and this advantage 

 was maintained until the recording of notes ceased in mid-October. The final 

 order was precisely the same as in the tests with Mustard given above. 



DWARF FRENCH BEANS. 



The small amount of foliage that was produced, owing to the advanced 

 season of the year, gave evidence that the trials dressed with Greenford 

 Humogen were far superior to those grown with the Manchester article. The 

 latest notes taken, however, showed that the Farmyard Manure section was- 

 practically equal to the Greenford Humogen. 



From a review of the general results obtained in Series II it will be seen 

 that the hope which Professor Bottomley entertained with regard to the rectified 

 Manchester-manufactured Humogen (see page 3) was unfortunately not realised. 



The Humogen prepared at his laboratory at Greenford, a supply of which 

 he also kindly sent me, gave better results, but it is presumably not possible 

 for material so prepared to be available in sufficient quantities for general use. 



The photographs reproduced in this Bulletin are strictly copyright. 



