"Agricultural fertilizers'(By E.J.Russell,Bull.No.28 of the Ministry of Agr.&fisheries,London,1932).This monograph written in a popular and read able style,is intended to summarize our present knowledge of the effects of artificial fertilizers on ordinary farm crops.Much of the information is drawn from English experiments,especially those conducted during the last 70 years at the Rothamsted Experimental station of which the author is the director .The pamphlet opens with a historical survey of the discuvery of arti - ficial fertilizers and their popularation by Sir John Bennet Lawes of Rothamsted by application to various crops like.whent ,barley etc.and proceeds to deal in detail with different kinds of nitrigeneous, phospha- tic and potash fertilisers with special reference to their physiological effects on the plant the optimum proporations to be applied to various crops commonly grown in England.The information relative to the manuring of individual crops is brought together.in a valuable chapter at the endd under the caption 'Manuring of farm crops'.A short note is also appended on compound or mixed paent fertilisers.Though the brochure is mainly intended for British farmers and most of the trials reported are those carried out in Britain or on the continent,still it is written so as to appeal to a wider circle and especially the pages dealing with the physiological effects of the fertilizer ingridients on the plant metabolism will be read with interest,as they fertilizer ingredients on the plant metabolism will be read with interest,as they summarise recent work on the subject.A great deal of work has been done in the different provinces of Indian on the response of economic crop plants toapplication of fertilisers and manures,but the informa- tion is not at present available in a cllected form and such a publication undertaken by a central organisation like the Imperial Council of Agricultural Research would undoubtedly prove of great value to the Indian farmers ,espically if accompanied by suitable and o thr provinces howing the different of the soil in important mineral constituents.
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