164 AGRONOMY [Bot. Absts., Vol. V, 



while the land was dry. The value of the properly compacted seed bed was demonstrated in 

 the long and short fallowing plots and the May preparation with the spring-toothed cultivator 

 only. The use of superphosphate with a quick maturing variety on the long and short f allowed 

 land is unnecessary. Good jaelds on the long fallow plainly demonstrated the value of that 

 system. — L. R. Waldron. 



1212. Stuckey, H. P. Further studies in fertilizing and storing sweet potatoes. Georgia 

 Exp. Sta. Bull. 134: 77-87. 1920.— Bulletin 107 of the Georgia Experiment Station reports 

 work on fertilizing sweet potatDes (Ipo7noca batatas) which was begun in 1908, the first report 

 being published in 1913. This Bulletin reports on the same work from 1914-1919 inclusive. 

 The area utilized for the plats is Cecil clay loam, and the same kinds and amounts of ferti- 

 lizer have been applied to the same plats from 1908 to 1919 inclusive. Plat No. 1, fertilized at 

 the rate of 24 tons of stable manure per acre; plat No. 2, 2100 pounds 16-per-cent acid phos- 

 phate per acre; plat No. 3, 900 pounds sulphate of potash per acre; plat No. 4, 1500 pounds 

 nitrate of soda per acre; plat No. 5, 1800 pounds of complete fertilizer. Results show that 

 acid phosphate and sulphate of potash have increased the acidity of the soil. The complete 

 fertilizer gave the largest total yield throughout the period of the test, stable manure coming 

 second. Heavy nitrogenous fertilization seemed to give potatoes a lighter color and some- 

 what poorer flavor. The variety of sweet potatoes used since 1913 has been Myers Early. 

 The best quality potatoes were produced on the acid phosphate plat and the check. The pot- 

 ash seemed to have little influence in either color, flavor, or texture of the flesh. Potatoes 

 from the experimental plats were tested in storage. Those from the check plat kept better 

 through the winter than the others, but the data obtained were variable and a conclusion 

 can hardly be drawn. In testing the influence of soil types on the keeping of sweet potatoes, 

 potatoes grown on Cecil clay loam or red soil and on a gray phase of the Cecil clay loam were 

 compared; it is concluded that under local conditions, potatoes grown on gray soil keep 

 better than those grown on red soil. Potatoes from various plats were put in storage and loss 

 of weight determined. The average loss of weight was 16.6 per cent. The loss of moisture 

 from November 5th to March 1st was 3.73 per cent. The average total loss of weight was 

 16.6 per cent, and it is concluded that the percentage in loss of weight over the percentage 

 of loss in moisture is doubtless due to the breaking down of carbohydrates and the giving off 

 of carbon dioxide. In conclusion the author outlines a cooperative test on fertilizing sweet 

 potatoes that is being carried on by several southern stations. It states results for one year. 

 — T. H. McHatton. 



1213. Syme, J. E. Wheat plots at Narromine, 1919. Agric. Gaz. New South Wales 31: 

 233-234. 1920. 



1214. Syme, J. E. Farmers' experiment plots. Wheat and oats experiments, 1919. Agric. 

 Gaz. New South Wales 31 : 235-240. 1920. — Trials with wheat and oats were carried out with 

 several cooperators with different varieties, under various cultural methods, with the use of 

 manures, and with the use of home-grown and introduced seed. Yields of grain and wheat 

 hay are given and rainfall data presented.— L. R. Waldron. 



1215. Tabor, Paul. Permanent pastures for Georgia. Georgia State Coll. Agric. Bull. 

 197. 36 p., 16 fig. 1920. — Discusses the following pasture plats in Georgia: Japan clover 

 {Lespedeza stricta), Bermuda grass (Cynodon dactylon), carpet grass (Axonopus compressus) , 

 Dallis grass (Paspalum dilatatum), white clover (Trifolium repens), Rhodes grass (Chloris 

 gayana), Kudzu (Pueraria thunbergiana) , bur clover (Medicago arabica), black medic (A/. 

 lupulina), red top or herds grass (Agrostis alba), orchard grass (Daelylis glomerata) , tall oat 

 (Arrthenalherum elatius), rescue grass (Bromus unioloides) , arctic grass (Bromus secalinus), 

 rye grass (Lolium sps.), Kentucky blue grass (Poa pratensis), The Paspalums (Paspalum 

 sps.), giant carpet grass (Axonopus furcatus), broomsedge (Andropogon sps.), Indian oats 

 (Chrysopogon nutans), wild rye (Elymus sps.), wire grass (Aristida stricta), lightwood-knot 

 grass (Sporobolus curtissii), crab grass (Syntherisma sps.) , crow foot (Dactyloctenium aegyp- 

 tium), cane brake (Arundinaria tecta, A. macrosperma) , maiden cane (Panicum hemitomum), 



