. Manures and fertilizers; a text-book for college students and a work of reference for all interested in the scientific aspects of modern farming . increasing the acidity, whereas on a soil where thesodium chlorid can react with carbonate of lime to formsodium bicarbonate, the reverse effect might follow. 493. The influence of sodium salts on the conservationand movement of soil moisture. — It has been shown byRicome2 in experiments with Malcolinia maritima and 1 Chem. Ztg., 66 (1900), 701. 2 Compt. rend., 137 (Paris, 1903), 141; Abs. Centralb. f. Agr. Chem.,33 (1904), 224. SODIUM SALTS 341 A
. Manures and fertilizers; a text-book for college students and a work of reference for all interested in the scientific aspects of modern farming . increasing the acidity, whereas on a soil where thesodium chlorid can react with carbonate of lime to formsodium bicarbonate, the reverse effect might follow. 493. The influence of sodium salts on the conservationand movement of soil moisture. — It has been shown byRicome2 in experiments with Malcolinia maritima and 1 Chem. Ztg., 66 (1900), 701. 2 Compt. rend., 137 (Paris, 1903), 141; Abs. Centralb. f. Agr. Chem.,33 (1904), 224. SODIUM SALTS 341 Alyssum maratinum that the presence of sodium chloridin the solution outside of the plant may lessen the quantityof water absorbed, and thus protect it from an injuriousdegree of transpiration. The presence of the sodium saltin the plant itself was without beneficial effect in thisconnection, unless the existing conditions were also suchas to permit of easier absorption. Since soluble salts, such as sodium chlorid, increase thesurface tension of liquids, it has been pointed out by Kingthat they may be helpful by facilitating the movement of. Full rationcommon salt Full rationmuriate of potash One-fourth ration common rationmuriate of potash Full ration common salt. One-fourth ration muriate of potash Fig. 60. — Chicory, alike with phosphoric acid and nitrogen. the soil water towards the surface, and hence towardsthe plant roots. In certain soils sodium chlorid exerts a beneficial floc-culating influence, yet in others in which the bicarbonateis readily formed, it may have the opposite effect. It is generally held by farmers that common salt addedto a soil helps it to retain moisture, on which account it ishelpful on light sandy soils which are readily subject todrought. This view is supported by the factl that thepresence of salts in the soil solution lessens evaporationfrom the surface so long as they remain in solution, and 1 King, A Textbo
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfertili, bookyear1913
