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Liquid nitrogenous fertilizers

  • H. R. Jameson (a1)

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The results show that liquid fertilizers generally gave lower yields of dry matter than conventional solid fertilizers in four experiments on grassland. In seven trials, on autumn wheat, spring wheat, sugar beet and kale, the efficiencies of the two forms of fertilizer were similar.

Liquid fertilizers containing ammonia must be injected into the soil and this needs special equipment, more complicated, particularly where anhydrous ammonia is to be used, than the distributors used for solid fertilizers. Running the injector over established grassland sometimes resulted in considerable damage to the sward. When used to top-dress winter wheat across the line of drilling some plants were killed.

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References

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Cooke, G. W. (1956). J.R. Agric. Soc. 117, 121. Fertil. Feed. St. J. (1950). 36, 339.
Hotter, F. & Jarvis, G. F. (1953–54). Agriculture, Lond., 60, 275.
Rep. Edinb. Coll. Agric. (19521953), p. 56.
Rep. Edinb. Coll. Agric. (19531954), p. 55.
Rep. Edinb. Coll. Agric. (19541955), p. 51.
Sheriff, F. C. (1957). Gas J. 290, 741.
Tod, H. & Simpson, K. (1955). Gas J. (Abstr.), 281, 857.
Webber, J. (1957). Agriculture, Lond., 63, (12), 571.

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