26 



N. H. AGR. EXPERIMENT STATION 



[Bulletin 212 



increases of 16.8 per cent, 35.7 per cent and 35.7 per cent respectively. Green 

 manure probably had very little effect, as Plot 3 only yielded 12.1 per cent 

 over the check, and Plot 7, less than the check. 



The limed plots outyielded the unlimed plots in every case except one where 

 the decrease is not significant. On the other hand, the only significant in- 

 creases were on Plots 1 and 5 where no commercial fertilizers were used. As 

 a commercial proposition, liming was a total failure, as the potatoes on the 

 limed portion were practically 100 per cent scabby. 



Effect of Fertilizers on Vegetables. 



In the squash fertilizer experiment approxirdatelj^ one-tenth acre plots were 

 used. Each treatment was repeated four times by J. R. Hepler. The squash 

 was planted May 26, and the manure put on the same day. The nitrate of 

 soda was put on in two applications, the first on June 15 and the second July 2. 



The soil used had been in crops for only two years, and the need of manure 

 is apparent by a comparison of 1 and 2; the nitrate of soda did not produce the 

 plant growth necessary for a good crop of squash. The effect of phosphorus is 

 also very plainly shown by comparing Series 1 and 4 on the one hand, and 2 

 and 3 on the other; the differences of 1379 pounds and 1446 pounds respectively 

 were probably both due to the influence of phosphorus. 



Table VII. — Effect of manure, nitrate of soda and acid phosphate on yield of squash. 



There were fourteen rows of squash in each plot, of which the two center 

 rows of the first two series of plots were treated with manure under the hill. 

 The yields are given in the following table : 



Table VIII. — Effect of manure under hills on yield of squash. 



