68 EXPERIMENTS WITH MANURES. 



W. G. WYMAN'S STATEMENT. 



A statement of the continuation in 1861 of my 

 experiment commenced in 186 0, on the proper depth 

 of applying manures, in accordance with the require- 

 ments of the Board of Agriculture. 



The size of the field, one acre and thirty-two square 

 rods ; the division into lots of thirty-two rods each, and 

 the numbers of the lots, the same as in 1860. 



The field was plowed once, about six to seven inches 

 deep, May 1st and 2d ; harrowed once ; sowed May 

 3d with two and one-fourth bushels of Scotch Fife 

 wheat, one-half bushel each of Herds-grass and Hed- 

 top seed, and fifteen lbs. clover ; harrowed again and 

 brushed. The grain was cradled and got into the barn 

 without stooking, Aug. 12th to 16th; threshed by 

 hand and weighed Oct. 4th and 5th. The grain louse, 

 aphides, almost covered the heads of wheat on the 

 whole field before ripening, and caused the kernel to 

 be very much shrivelled. The weevel, or wheat 

 midge, also was found in all parts of the field, which 

 eat out the centre of the kernel to a considerable 

 extent, destroying it so that the shell of it would blow 

 away with the chaff in winnowing. The injurious 

 effects of these insects appeared to be pretty evenly 

 distributed through the several lots, so that when 

 examined, as it frequently was by myself and others, 

 we could not see that any one lot was more seriously 

 effected than another. 



