June, 1920] BOIL SCIENCE 429 



2923. Lipman, J. G. Adjusting the soil reaction to the crop. [Editorial j SoilSci. 7: 181. 

 1919. — -Sulfur at tin' rate of 300 L000 pounds per acre is suggested as a means of producing an 

 acid reaction in the soil suitable for growing Bcab-free potatoes on laud which has been 

 limed to allow the successful growing of lime-loving legumes. — William ./. Bobbiru. 



2924. Mooers, C. A. Abnormality of soils in field-placed cylinder experiments. 



Sci. 7: 217-251. 1919. — Five different soils placed in cylinders sunk in the ground and exposed 



otherwise to natural conditions were found to become unproductive to (lie extent of crop 

 failure in from 3-S years, except when limed. For none of the soils was the result observed 

 under field conditions. The crop failure is due to acidity induced by excessive leaching 

 The cylinders prevent run-off which results in excessive leaching. — William J. Rabbins. 



2925. Sharp, L. T., and D. R. Hoagland. Notes on recent work concerning acid soils. 

 Soil Sci. 7: 197-200. 1919. — Heating acid soils with cane sugar solution produces marked in- 

 version. Slightly acid or alkaline soils cause only slight inversion. The extracts of acid 

 soils also produce marked inversion but less than the soils. — William J . Robbins. 



2926. Stewart, Robert, and F. A. Wyatt. Comparative value of various forms of lime- 

 stone. Soil Sci. 7:273-278. 1919. — For application to acid land dolomitic limestone is as 

 effective if not more so than the high-calcium limestone. In a 4-year experiment finely 

 ground limestone was not more effective than was the total product from a -J- inch screen. 

 The annual loss of limestone from the surface 20 inches of two fields was 760 and 542 pounds 

 per acre respectively. — William J. Robbins. 



ALKALI SALTS 



2927. Gokhale, V. G. A study of the conditions under which water of tidal saline creeks 

 is utilized for crop production in Kankan. Agric. Jour. India 14:422^30. 1919. — Solanum 

 melongena and Capsicum frulescens were found to grow under conditions of alkalinity caused 

 by using saline irrigation water where other crops failed. The creek waters of the Kankan 

 district vary in salt content during the year. Water from the creeks of the Amber River 

 was found to be suitable for irrigation use until December, but after this time the salt con- 

 tent was too high for agricultural purposes. — J. J. Skinner. 



2928. Krishnamurti Row, K. The effect of salinity on the growth and composition of 

 sugar cane varieties. Agric. Jour. India 14: 476-493. 11 pi., 5 charts. 1919. — As a result of 

 experiments during 1914-18 it was found that thick juicy varieties do not grow well in alka- 

 line soils. Karum, Chitton, Kaludai, Boothan, Poovan, B. 298, Purple Mauritius, Magh, 

 Bogapura, J. 36, and D. 74, are varieties which failed in an alkaline soil. Cheni, Naanal, 

 Katha, Saretha, Putli Khajee, Hullu Kabbu, M. 1017, Jagannathia, Dhar, M. 1826, M. 19, 

 and M. 2104 succeeded fairly well. The soil in which the cane grew contained 0.17 per cent 

 total soluble salts, 0.061 per cent was sodium chloride. The checking of growth is traced 

 primarily to the sodium chloride. The effect of growing cane under saline conditions is to 

 give an impure juice containing large amounts of chlorine and potash. It was found that the 

 chlorine content of cane sugar depends on the nature of the variety and the condition of 

 soil and water under which it is grown. The effect of large quantities of chlorine in dry juice 

 is to lower the sucrose,, purity and glucose content of that juice. The amount and purity of 

 juice produced by different varieties grown on two soils is given. — /. /. Skinner. 



2929. Swadi, T. S. A preliminary note on some new factors affecting the hardness of 

 gur or crude sugar. Agric. Jour. India 14:431—139. 1919.— Tabular data are given which 

 show the relation between the soil on which sugar cane grew, character of manure used, 

 water used in irrigation, and character of sugar produced. Grey soil and brackish water 

 produce cane yielding a soft and fluid gur. The quality of gur is influenced by character of 

 soil, in which the cane grew.—./. /. Skinner. 



