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June. 1940] AGRICULTURAL RESEARCH n\ N. H. 27 



2 inches wide with open space 2 inches in diameter, fertilizer 28 

 gms. spread Yz inch distant from seed, fertilizer 21 gms. spread ^ 

 inch distant. All plants were grown in galvanized pails at 60 per 

 cent saturation in soil moisture. 



Results as reported by Stuart Dunn, are: 1. Rate of emergence 

 from soil shows as before that fertilizer has slight or no inhibiting 

 etTect in any treatment in either sandy or clay soil. 



2. Rate of growth is greater with fertilizer treatments, except 

 with sandy soil at warm temperature. There some inhibiting effect 

 was found. 



3. Relative growth at time first measurements were taken again 

 IS less for the fertilizer placed close than the non-fertilizer treat- 

 ments and varies up or down for the other treatments. Even those 

 at a distance with the 21 gm. amount showed some inhibition in both 

 soils at the cold temperature. This suggests the desirability of test- 

 ing smaller amounts of fertilizer and also of dift'erent amounts of 

 soil moisture. 



4. Yield is over twice as great for all fertilizer treatments as for 

 non-fertilizer with clay in the cold house and almost as great in the 

 warm. This agrees with previous results. Yield was considerably 

 smaller with sandy soil than clay at both temperatures and the close 

 treatment showed no increase at all over the non-fertilizer. 



A second series of plants was grown later in the season at only 

 one growing temperature. Distal seed was used in sandy loam at 

 a mean-growing temperature of 22.6° C, and at three soil moisture 

 percentages, 50, 60 and 70 per cent of saturation. Fertilizer treat- 

 ments for each were: no fertilizer, fertilizer 28 gms. spread y^ inch 

 distant from seed, fertilizer 21 gms. spread Yi inch distant, and for 

 the 60 per cent moisture only, 14 gms. spread ^/^ inch distant. 



The results were: 1. As in previous tests the fertilizer treat- 

 ments do not affect rate of emergence very markedly in any soil 

 moisture percentage. 



2. Rate of growth is again greater with fertilized plants than non- 

 fertilized in all soil moisture percentages. 



3. Relative growth at time first measurements were taken varied 

 considerably, the least amount of fertilizer showing least growth. 

 Since yield was good for this treatment, there is some doubt as to 

 the reliability of this measurement as an indication of fertilizer 

 effect. 



4. Almost none of the }-ields for fertilized plants was greater than 

 non-fertilized, except in 70 per cent soil moisture. Low fertilizer 

 gave as good yield as higher for the 60 per cent plants. 



(Adams Fund) 

 Spraying for Apple Scab 



Flotation sulphur paste at the rate of 16 pounds per 100 gallons was 

 used by O. R. Butler in all applications. Experiments were made 

 for the purpose of studying the value of a third-cover spray, and the 

 value of a supplementary spray betAveen the pink and calyx when 

 the calyx spray is not given within 14 days. The supplementary 

 spray was applied 14 days after the pink application, and the calyx 

 spray 19 days after the pink. The results obtained indicate that the 



