May, 19-0] SOIL SCIENCE 259 



1781. Brown, Gordon G. Experiments with nitrate of soda as a fertilizer for orchards in 

 the Hood River Valley, Oregon. Proc. Oregon Bortio. Soc. 1918: 107-112. 1919.— See Bot. 

 Absts. 3, En1 py 2318. 



1782. Brown, G. G. Fertilizer tests for strawberries. Oregon Agric. Exp. Sta. Bull. 

 159. 15 p., 2 fig. 1919. — A three-year test gave varying results when nitrate of soda, super- 

 phosphate, or sulfate of potash were used as fertilizers, either singly or in combination. In 

 general the use of clover as a green manure resulted in increased yields. The application f 

 nitrate of soda also increased yields, but it must be used with moderation. Mineral fertil- 

 izers can not be depended upon wholly to replace those containing large quantities of organic 

 matter. On the lighter more open soils the latter types of fertilizers are indispensable. The 

 kinds and amounts of fertilizers to be employed must be judged from strictly local conditions. 

 — E.J. Kraus. 



1783. Metge, G. [Rev. of: Clausen. Das Kalk- und Kalibediirfnis der Hulsenfrtichte. 

 (Lime and potash requirements for the legumes.) Illustr. Landw. Zeitg. 37: 547-549. 1917.] 

 Biedermann's Zentralbl. Agrikulturchem. 47:313-318. 1918. — In general the yield of legu- 

 minous crops is increased by additions of lime and potash. Tables are given showing the 

 yield from various fertilizer treatments (phosphoric acid, potash, and nitrate) on different 

 types of soil. — Thomas slag, kainit, and ammonium sulphate were some of the fertilizing ma- 

 terials used. — F. M. Schertz. 



1784. Cruz, Jose. El abonado de la remolacha. [Fertilization of the sugar beet.] In- 

 formacion Agric. [Madrid] 9: 171-173. 1919. — For every hundred kilograms of sugar pro- 

 duced fourteen kilograms of mineral salts are drawn from the soil, and chemical fertilizers 

 are needed to supply these elements. A series of experiments with sodium nitrate indicated 

 that average soils require 50 to 100 kgm. per hectare and up to 500 for poorer soils, an excess 

 lowering the sugar content of the beets and the purity of the juice. — John A. Stevenson. 



1785. Domingo, M. Gil. El empleo de abonas quimicas en los naranjas. [Chemical 

 fertilizers for oranges.] Informacion Agric. [Madrid] 9: 60-61. 1919. — See Bot. Absts. 3, 

 Entry 2328. 



1786. Guzmanes, Antonio. El abono del pimiento. [Fertilization of the pepper.] Infor- 

 macion Agric. [Madrid] 9: 191-192. 1919. — -War made the importation of guano difficult and 

 chemical fertilizers were substituted in Spain. The average yield obtained with peppers 

 (20,000 to 25.000 kgm. per hectare) required 400 kgm. of sodium nitrate and 500 of super- 

 phosphate or equivalent. Potash was desirable but unobtainable.' — [See Bot. Absts. 3, 

 Entry 2387.] John A. Stevenson. 



1787. McCool, M. M., G. N. Grantham, and C. E. Millar. Some information and 

 suggestions concerning the use of phosphorus. Michigan Agric. Exp. Sta. Bull. 284. 30 p. 

 21 fig. 1919. — A discussion of the phosphorus needs of Michigan soils as demonstrated by 

 fertilizer experiments with and without phosphorus in different parts of the state. It is 

 recommended that this element be applied to sand, loam, clay and muck soils when experi- 

 ments show an absence of 'sufficient phosphorus. — E. A. Bessey. 



1788. Murray, J. C. Molasses as a fertilizer. Australian Sugar Jour. 11: 189. 1919. — 

 Reports success in the use of molasses as a fertilizer in Australia. — E. Koch. 



1789. Richter. [Rev. of* Greisenegger, Igxaz K. Versuch mit Samenriiben unter 

 Verwendung von Mangansulfat als Katakytischem Diinger. (Experiments on seed beets using 

 manganese sulfate as a catalytic manure.) Oesterreich-Ungar. Zeitschr. Zuckerindust. und 

 Laindw. 1917: 13, 1917.] Biedermann's Zentralbl. Agrikurchem. 47: 320-324. 1918. 



