14 N. H. Agr. Experiment Station [Bulletin 313 



ent points on the Merrimack river and subsequent surveys of the 

 same banks are to be made in order to have accurate data of the 

 amount of stream bank cutting. Maps of the Merrimack river banks 

 showing vegetation, present condition and physical features were 

 made in the vicinity of Nashua with the hope that a study of them 

 will lead to some economical, practical method of stream bank stabil- 

 ization, thus providing a means of control of harmful deposits and of 

 stream bank cutting, {Purnell Fund) 



Types of Pasture Herbage Compared 



Eight harvests were secured in 1938 of the 12 strains of wild white 

 and Dutch white clover which were seeded in 1936. The interesting 

 thing about these yields is their magnitude, ranging from 21,4 to 31/2 

 tons per acre for this low-growing type of pasture clover. 



Reed canary grass appears among the poor yielders in both the 

 pure seedings and the mixtures. Orchard and smooth brome grass 

 are two promising new varieties which seem well adapted to growing 

 conditions in this state, even better than Kentucky bluegrass. 

 ( Ba n kh ea d-Jo nes Fu n d ) 

 Testing Phosphatic Materials of Different Strength and Composition 



Plots on the Whenal farm in Greenland were seeded to clover in 

 1937 at which time five TVA phosphates were applied as follows: 

 superphosphate, 39.8' f P^O-. ; monocalcium phosphate, 51.5'/£> P^O^; 

 dicalcium phosphate, 44.9 '^ P-0^; fused rock, 30.4 % P^O and cal- 

 cium metaphosphate, 65.5'.^ P.O.. 



Yield data showed no significant differences, indicating that there 

 is little to choose from among these carriers. {Bankhead-J ones 

 Offset Fund) 



Soybean Varieties for Seed Tested 



In this test under the direction of L. J. Higgins, 33 varieties of soy- 

 beans were planted on the Whenal farm in Greenland. Judging from 

 these trials there seems to be some possibility of growing soybeans 

 for seed in the southern part of New Hampshire as a cash crop. The 

 early varieties, such as Spooner Mandarin, Cayuga, and Mandarin 

 Sel, will mature without danger of frost injury if planted by May 20. 

 Of the medium varieties it would be safe to select those requiring 120 

 and perhaps 125 days for maturity, such as 88803, 03654-A and 

 Spooner Manchu. The yields of 20 to 30 bushels per acre are com- 

 parable to yields of soybeans in the Midwest. (Hatch Fund) 



Silage Corn Varieties Tested 



This year 28 varieties were planted in triplicate plots. 20 hills of 

 three plants each ; and 21 varieties were planted in single plots of 20 

 hills each. During the growing season the plants showed uniform 

 growth per plot. Eureka Ensilage ranked first in 1937 and 1938 in 

 dry matter per acre. L. J. Higgins believes that the varieties of 

 silage corn best adapted to New liampshire are the medium matur- 

 ing varieties which reach a dough stage in at least 100 days. Certain 

 strains of Sure Crop and Sweepstakes have met this requirement in 

 l)ast years. Cornell 29-5, Cornell 29-3 and Canada Krug also showed 

 much promise. (Hatch Finul) 



Seed Inspection 

 The regular seed inspection work for the State Department of 



