42 



MASS. EXPERIMENT STATION BULLETIN 150. 



and spraying may perhaps also be taken to indicate that fertihzers will 

 do their best work in dri\'ing fruit production only when the vines are 

 comparatively free from fungous disease. They also suggest the possi- 

 bihty that there is a best time for applying fertilizers, in order to get the 

 best fruiting, perhaps at about the blossoming period. A rather marked 

 increase in fruit production, following a first application of fertilizers 

 rich in nitrates, during the blossoming period, on Howe vines, was noted 

 on some other bogs toward the close of the season. There seems to be 

 much yet to be learned along these Unes by further experimenting. 



An unexpected result of the spraying, noticed on all five of our old 

 fungous plots during the season, was the killing of the wood moss. This 

 moss appears to have been completely killed out on every one of these 

 plots, while, on the general bog surrounding some of them, it is present 

 in considerable abundance and very much alive up to the very edge of the 

 plot. 



When the fruit was gathered from these five plots, no marked difference 

 in color between the berries from the sprayed plots and their checks was 

 observed. The size of the berries from the Early Black and McFarlin 

 plots was practically the same as that of the berries from the checks, but 

 the berries from plots A and C (Howe plots) were distinctly smaller 

 than those from their checks, as shown by the following averages of counts 

 of berries in cupful samples (New England Cranberry Sales Company's 

 inspector's cup) from the different plots and their checks, the samples 

 being in each case taken as evenly as possible from the various boxes : — 



Table 2. 



Plot. 



Number 



of Samples 



counted. 



Averaee 

 Number of 



Berries 

 per Sample. 



Variety. 



A (fertilized middle portion), 



A (the unfertilized side portions), 



A (check), .... 



B 



B (check) 



C 



C (check) 



D, 



D (check 1) 



D (check 2) 



E 



E (check) 



97 



90 



60 



61 



102 



96 



113 



110 



108 



109 



109 



Howe. 

 Howe. 

 Howe. 

 McFarlin. 

 McFarlin. 

 Howe. 

 Howe. 



Early Black. 

 Early Black. 

 Early Black. 

 Early Black. 

 Early Black. 



The keeping qualities of the berries from these five old fungous plots and 

 their checks were tested, with the results shown in the folloAving table : — 



