EXPERIMENT STATION BULLETINS. 



357 



ing- time 

 under. 



test, the material for which was furnished hy the U. S. Deijartment of 

 Agriculture, and appeared to be in good condition when used at plant- 

 Enough coarse manure to barely cover the ground was plowed 

 , and about fifty rods north of the plot an additional plot of 

 Swedish Krown was i/lantcd without manure. Both plots Avere on slop- 

 ing grounds, and the lower half was inoculated in order to prevent 

 natural drainage from carrying some of the inoculating material upon 

 any portion of uninoculatod one-half. As a further preventative, a space 

 two feet wide was left uuplanted between the tv.o halves, and whenever 

 the plots were cultivated, the inoculated half was cultivated either the 

 day before or after. No beans have ever grown upon the manured plot 

 nor any upon the unmanured plot except two rows of garden beans in 

 l!)(ir), when each plant had been pulled up and found to be free from 

 nodules. The manured plot was planted June 5, and the other on June 

 (). The season was fully as favorable for beans as the preceding one, 

 except that cutworms destroyed fully 00 per cent of the inoculated half 

 of the earliest Xavy plot, and to this must be ascribed the low yield 

 of this plot. The rest of the plot and the unmanured plot Avere saved 

 by surrounding them with narrow strips of poisoned bran Avhich had 

 been moistened with molasses. At the time the plants on the unmanured 

 ])lot were in full blossom, most of the leaves were attacked by a fungus 

 wliicli caused the outer edge to dry up and some of the leaves to drop 

 off before the pods Avere ripe. It is quite certain therefore that the 

 difference in yield between the tAvo plots of SAvedish BroAvn is due to 

 this disease. From each plot about a dozen plants Avere pulled up and 

 the roots examined during the last AA'eek in June and again just before 

 the plants started to blossom. Almost every inoculated plant had numer- 

 ous nodules in size about as large as small field peas, Avhile a feAV un- 

 inoculated plants were found with less numerous nodules about as large 

 as ordinary pinheads. Subsequent examinations shoAA^ed that practically 

 25 per cent of all uninoculated plants Avere provided Avith nodules Avhich 

 had increased in size, but at no time became as large or as numerous 

 as those upon the roots of inoculated plants. Nodules were also found 

 for the first time upon the roots of approximatel}' one-quarter of the 

 plants of all garden varieties except the lima beans. The following 

 table gives the yield of the plots : 



A'arieties. 



Swedish Brown (not manured) 



Swedish Brown (manured) 



Earliest Navy (manured) 



Isbell's Improved Pea fmanured) 



Great Northern (manured) " 



Time of 

 blossoming. 



July 



15. 



18. 



22. 



21.. 



22. 



Si?e of 

 plot. 



Square 

 feet. 



1,764 



992 



1,166 



1,166 



500 



Yield of plot. 

 Lll.s. 





39i 

 30 



12i 

 27i 

 lOi 



40J 



29 



30 



26i 



12 



Total 



yield 



of plot. 



Lis. 



SO 



59 



42i 



54 



22§ 



Yield 

 per acre. 



Bushels. 



32.92 

 43.17 

 20.46 

 33.62 

 32.67 



Buckwheat in 1906.— The variety Rye Buckwheat Avas planted May 31. 

 It blossomed July 12 and Avas harvested August 24, the stand having 



