FIELD CROPS. 135 



Tillage experiments with the plow, G. L. Sutton, F. Ditzell, and H. J, 

 Eelly (Agr. Gaz. N. 8. Wales, 22 {1911), Nos. 2, pp. 164-177; 3, pp. 254-259).— 

 The results of tillage experimeut*> with disk, mold-board, and subsoil plows 

 Indicate that for deep plowing the disk plow is preferable to the mold-board 

 plow. For breaking up land that is not to be fallowed or for plowing under 

 a stand of weeds just prior to planting the mold-board plow is preferred. 

 Tables present in detail the data obtained. 



Thick and thin seeding trials, G. L. Sutton et al. {Agr. Gas. N. S. Wales, 

 22 {1911), No. 7, pp. 598-609, figs. 2).— These pages report the results of seed- 

 ing wheat at various rates ranging from 20 to 60 lbs. jper acre on 3 different 

 experiment farms. The thicker sowings were generally followed by higher 

 yields of hay and grain. Early plantings usually gave higher hay yields, but 

 the mid-season plantings excelled in grain yield. 



Behavior of Australian varieties of wheat when grown in England {Agr. 

 Gaz. N. S. Wales, 22 {1911), No. 5, pp. 3S2, 3S3).—A field test of several 

 varieties of Australian wheats under English conditions gave unsatisfactory 

 results. 



Wheat from Sunpan, China, C. Flaksbebger {Trudy Bturo Prlkl. Bot. {Bui. 

 Angcic. Bot.), 4 {1911), No. 1, pp. 1-29, pi. 1, figs. 8). — Botanical descriptions 

 are given of 3 varieties of spring wheat and 5 of winter wheat. Samples 

 of these varieties were collected in the Chinese province Sze-chuan. Their 

 striking characteristic was the tenacity with which the ripe heads held the 

 grain. Heads stored for 17 years still held the kernels well. 



The milling and baking qualities of Indian wheats, A. Howard and 

 Gabkielle L. C. Howard {Agr. Research Inst. Pusa [India's Bui. 22, pp. 32, 

 pi. 1). — The subjects considered are the milling and baking tests of 1910, the 

 cultivation of wheat in the botanical area at Pusa, and the yielding power of 

 the new Pusa wheats. Some data are also given regarding experiments now in 

 progress. 



According to the authors, the idea hitherto held that India can produce only 

 weak wheats is erroneous, since strong milling wheats have been produced at 

 Pusa during the last 3 years. The combination of high grain quality and high 

 yield in the same wheat has been brought about by modern plant breeding 

 methods. " The producing power of the soil at Pusa has been more than doubled 

 by hot weather cultivation, by moisture conservation, and by embanking with 

 occasional green manuring. Yields of over 40 bu. of wheat to the acre have 

 been produced without manure, irrigation, or rain after sowing time. The 

 methods adopted at Pusa can be applied with necessary modifications through- 

 out the Indo-Gangetic plain. There is no doubt that a great increase in the 

 yield of the present area of the alluvium under wheat and other crops is pos- 

 sible using only the means now possessed by the people." 



"Weed seeds in the grains found on the markets of the province of Tschel- 

 jabinsk, Orenburg government, Russia, A. Malzew {Trudy Buiro Prlkl. Bot. 

 {Bui. Angeic. Bot.), /, {1911), No. 7, pp. 231-255).— Thin article enumerates 

 the different kinds of weed seeds found in samples of grain secured on the 

 markets of the province mentioned. The more common weed seeds found were 

 the following: In wheat, Polygonum convolvulus and Agrostcmma githago; in 

 oats, P. convolvulus, A. githago, Avena fatua glahrata, and Ncslea paniciilata; 

 and in rye, P. convolvulus, Chcnopodium album, Echinospcnnum lapula, and 

 N. paniculata. 



Field weeds of the Cherson government, J. Paczoski {Trudy Biuro Prikl. 

 Bot. {Bill. Angeiv. Bot.), // {1911), No. 3, pp. 71-146, figs. 2).— A list is given 

 of the principal weeds occurring in the Cherson government, Russia, together 

 with brief notes on their importance and distribution. 



