32 U. OF N. H. AGR. EXPERIMENT STATION [BuHetin 227 



Red River, Avon, and June Pink were used to represent the early 

 kinds; three strains of Bonny Best, two of John Baer, and one each of 

 Chalk's Jewell, Reil Head, Acme, Ponderosa, Stark and Hudson Val- 

 ley Maid for the medium-early; Matchless, Coreless, Globe, Marglobe 

 and three strains of Stone for the late; Dwarf Champion and Dwarf 

 Stone for the dwarf. 



The relation of growth to blossom cluster and fmit production 

 shown in Table XV indicates that the early types grow more rapidly 

 early in the season while the late types grow too late to produce fruit 

 that will rii:)en. Growth and blossom cluster production are closely 

 correlated in jilants of the same type. With the earlier varieties it 

 takes new growth two weeks to produce blossom clusters and the first 

 fruits on these clusters five to six weeks to mature. The relations are 

 somewhat different in the other types. 



In Table XVI it may be noted that the early types require less time 

 for ripening; the amount of fruit per blossom cluster on July 8 ripened 

 by Sept. 10 is 6.4 ounces for the early, 3.6 ounces for the medium, and 

 3.4 ounces for the late kinds. 



It is jiossible that a part of this difference may be due to a difference 

 in size of blossom clusters. If, for instance, 10 fruits set on each clus- 

 ter of early tomatoes and 5 on each cluster of the late, and if ripening 

 proceeded at the same rate in each case, there would be more ripe 

 fruit after a given period on the clusters of early fruit. This possi- 

 bility will be investigated further next season. 



Effect of Phosphorus on Cabbage — {Hatch Fund) 



In 1926 the phosphorus plots formerly planted to tomatoes (See 

 Technical Bulletin 28) were planted to cabbage. Each plot is 20 x 34 

 feet in size with a division row between plots. The cabbage was 

 planted in check rows two feet apart in the row and three feet between 

 rows. There are eight fertilizer treatments, each of which is repeated 

 four times, although the cabbage plants on three plots were injured by 

 wood-chucks to such an extent that one series of plots had to be dis- 

 carded. 



The results presented in Table XVII are not as striking as in the 

 case of tomatoes. However, the phosphorus did produce an earlier 

 growth in the cabbage plants, and the phosphorus plots show an in- 

 crease over the check of from 6 to 10 per cent. While this is not a 

 large increase, the results which represent 12 different plots are very 

 uniform and are believed to be significant. The extra manure plot, 

 however, gives a much higher yield than the phosphorus plots. The 

 reverse was true with tomatoes. 



Cabbage Fertilizer Experiment — {Hatch Fund) 



The cabbage fertilizer experiment at the Horticultural Farm included 

 192 plots each 221/2 x 16 feet in size. One half of these plots were on 

 land which had been planted to cabbage the preceding year, and the 

 remainder were on land which had been in sod for a number of years 

 I)revious. One half of the new land and one half of the old land were 

 fertilized with stable manure at the rate of 20 tons per acre. Eleven 

 different fertilizer treatments were used, ten of which were repeated 16 



