28 



UNIV. OF N. H. AGR. EXPERIMENT STATION 



[Bulletin 221 



Growth measurements were taken on six vines on each plot, one vine 

 per hill being measured once a week. 



Table XIII gives the total measurements for twent3'-four plants and 

 the comparison with the check plot, No. 2. 



The effect of acid phosphate on the early growth of the squash plant 

 is shown by the increases of 70 per cent, 51 per cent and 92 per cent re- 

 spectively on the acid phosphate plots, 4-5-8, on July 8; Jul}- 15 the in- 

 creases were 65, 46 and 99 per cent respectively over the check treatment ; 

 while on July 22 the increases were 75, 61, and 87 per cent for the phos- 

 phate plots and 66 per cent for the extra manure plot. With the excep- 

 tion of the measurements on Plot 6 on July 22, the results on Plots 6 

 and 7 are consistently lower than the check, indicating that a high appli- 

 cation of potash salts is injurious to early growth. 



Table XIII — Squash growth and field data, 1925 



The differences in yield are not as pronounced for squash as thej^ 

 were for tomatoes. The extra manure plot yielded more than the acid 

 phosphate plots, although acid phosphate uniformly increased the yields. 

 There was some fusarium disease in the plots and probabh' more on 

 treatments 3-4 and 8 than on the other treatments. When the plants 

 were noticeably affected they were discarded, but the disease was prob- 

 ably not completely eliminated. 



The correlation of yield of squash with the early growth Jul}" 22 was 

 .239 ±.088. This correlation is low as compared with tomatoes in 1924, 

 when the correlation was .966 ±.009 (N. H. Tech. Bull. 28, p. 33). 



The yield of squash as influenced by the 'number of plants per hill is 

 shown in Table XIV. 



Table XIV — Yield of squash and number of plants per hill 



Three plants per hill 

 Two plants per hill 

 One plant per hill . . 



Number 

 hills 



172 



101 



43 



Nunibei 

 plants 



516 



202 



43 



Number 

 squash 



584 



308 



74 



Number 

 squash 



per 



hiU 



3.4 

 3.0 

 1.8 



Total 



weight 



(Pounds) 



6,751 



3,522J 



1,039 



Average 



weight 



per hill 



(Pounds) 



39.1 

 34.9 

 24.2 



Average 



weight 



per 



plant 



13.0 

 17.4 

 24.2 



Average 

 weight 



per 

 squash 



11.7 

 11.4 

 14.1 



Yield 

 per 

 acre 



(Tons) 



15.8 



14.1 



9.9 



