FIELD CROPS. 631 



In a test of neem cake, night soil, and cotton refuse applied at the rate of 

 200 lbs. of nitrogen per acre, the highest average yield of potatoes during 

 1904-1909 followed the use of neem cake. Each was followed by a yield more 

 than twice as great as that secured on the unfertilized plat. During 1910- 

 1911 the plats were unfertilized and the residual value of these applications 

 was tested. In 1910 the greatest yield was obtained from the neem cake plat 

 but in 1911 this plat produced the lowest yield, much the highest being secured 

 from the cotton refuse plat. Sugar refuse or filter press mud also applied 

 at the rate of 200 lbs. of nitrogen per acre did not compare favorably with 

 any of these fertilizers for potato growing. During 2 years' work cottonseed 

 cake appeared to be a valuable fertilizer for potatoes but was surpassed in 

 1910-11 by both karanj cake and neem cake. In another experiment sugar 

 refuse applied at the rate of 50 lbs. of nitrogen per acre was followed by a 

 considerably greater yield of wheat than when applied at the rate of lOO lbs. 

 of nitrogen per acre. 



Tables state the results of variety tests of peanuts and wheat, and of date 

 of planting tests of pigeon pea varieties sown mixed with sorghum. 



Report on the operations of the department of agriculture, Punjab, for 

 the year ended June 30, 1911, W. S. Hamilton et al. {Rpt. Dept. Agr. Punjab, 

 1910-11, pp. II +2+2+5 +XXXVir). — The author gives brief notes and tabular 

 dnta on fertilizer tests with corn and sugar cane, which included the use of 

 calcium nitrate, subsoiling and variety tests with sugar cane and wheat, tests 

 of calcium nitrate as a wheat fertilizer and its residual value, green manuring 

 with hemp, fertilizer and rotation tests with cotton and fodder crops, and the 

 water requirements of various cotton varieties. 



Report on the agricultural station, Orai, Jalaun, of the United Provinces 

 of Agra and Oudh for the years ended June 30, 1910 and 1911, B. C. Burt 

 {Rpt. Agr. Sta. Orui, Jalaun [India], 1911, pp. 1-12, pis. 5). — In a test of 

 varieties the large Virginia peanut produced the highest 4-year average yield. 

 V^ariety tests were also conducted with cotton, sorghum, wheat, pigeon peas, 

 and gram. Fertilizer and rotation tests on various soils are reported. 



Feeding crops and live stock experiments in South Africa, E. R. Saweb 

 (Cedara Memoirs on South African Agriculture. Pietermaritzhurg: Govt., 1911, 

 vol. 2, pp. SIS+XXIV, pis. 20). — Volume 1 of these memoirs has already been 

 noted (E. S. R., 23, pp. 22, 31). 



In this volume discussions of the principles of liY.e stock feeding and of crop 

 rotations are followed by detailed statement of the results of fertilizer and 

 variety tests with turnips, swedes, mangels, carrots, sugar beets, chicory, 

 alfalfa, vetch, lentils, sweet clover, lupines, sainfoin, clover, cowpeas, velvet 

 beans, soy beans, peanuts, peas, Lima or Kafir beans, beans, horse beans, po- 

 tatoes, cabbage, kale, rape, kohl-rabi, mustard, chard, sorghum, and prickly 

 comfrey. In the case of the potato the experiments reported deal also with 

 rate and time of planting, size of sets, disease resistance, irrigation, and the 

 control of diseases and insect pests. Notes on the botanical and chemical com- 

 position of the veld herbage are followed by statements of the results of fer- 

 tilizer experiments with grasses. The author also summarizes other available 

 data. 



[Field crops experiments in South Australia], A. E. V. Richardson (Rpt. 

 Min. Agr. 8o. Avst., 1909-10, pp. 19-25). — In fertilizer tests with wheat the 

 highest yields followed applications of (1) 1 cwt. mineral superphosphate, J 

 cwt. sulphate of potash, and i cwt. nitrate of soda, and (2) 1 cwt. mineral 

 superphosphate and 5 cwt. lime per acre. Soil which was disked, plowed 6 in. 

 deep, and thoroughly surface cultivated during the summer but not subpacked, 

 produced 1 bu. more than that which was subpacked before sowing, but almost 



