(1) Fertilisers and Crops, or, The Science and Practice of Plant-Feeding (2) Farm Dairying (3) Fungoid Diseases of Agricultural Plants

    Abstract

    (1) THE system of soil depletion as practised in the United States of America and in our colonies is beginning to receive serious consideration from the agricultural economist. The continuous growth of grain crops and the failure to make any adequate returns of plant food to the soil soon lead not only to a lack of food reserve, but also to the loss of those organic compounds which are of such importance in the production of crops in dry regions. This in itself is deplorable enough, but even where manure is to be had much of its fertilising value is wasted. Dr. van Slyke puts forward the interesting computation that the annual loss caused by the careless treatment of the manure produced by the different farm animals in the States is equivalent in value to an annual wheat crop in that country, or to 700,000,000 dollars.

    (1) Fertilisers and Crops, or, The Science and Practice of Plant-Feeding.

    Dr. L. L. Van Slyke. Pp. xiv 4 + 734. (New York: Orange Junn Company; London: Kegan Paul and Co., Ltd., 1912.) Price 2.50 dollars.

    (2) Farm Dairying.

    Laura Rose. Pp. 303. (London: T. Werner Laurie, n.d.) Price 6s. net.

    (3) Fungoid Diseases of Agricultural Plants.

    Prof. Jakob Eriksson. Translated from the Swedish by Anna Molander. Pp. xv + 208. (London; Bailliere, Tindall and Cox, 1912.) Price 7s. 6d. net.

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