ROOT GROWTH.
Results of recently concluded experiments have led to the following conclusions:— (1) Roots are enabled to penetrate deeply and quickly into the subsoil by the stimulating effect of superphosphate. (2) The area of soil and subsoil from which the roots and subsequently the plants obtain pliant-food and moisture is thereby increased. (3) Fallowing is essential in order to obtain best results from superphosphate. (4) The longer-growing season of an early-sown variety leads to greater root development than in the case of a latcsown variety, though the latter shows more rapid root development. (5) Seasonal variations lead to variations in root development, the more uniform root development resulting from a good season. (6) The observations show the great range in depth of roots and the depth to which moisture may be conserved.
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https://paperspast.natlib.govt.nz/newspapers/PUP19260819.2.28.4
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Putaruru Press, Volume IV, Issue 146, 19 August 1926, Page 6
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133ROOT GROWTH. Putaruru Press, Volume IV, Issue 146, 19 August 1926, Page 6
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