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The effects of dazomet and fertilizer nitrogen on field beans (Vicia faba L.)

  • J. McEwen (a1), G. A. Salt (a1) and D. Hornby (a1)

Summary

The mean yield of field beans grown for three consecutive years on a site infested with migratory nematodes was 1540 kg grain/ha in untreated soil and 1870 kg/ha in soil treated with dazomet.

Fertilizer nitrogen in amounts up to 250 kg N/ha decreased yield to 990 kg in untreated soil but increased it to 2220 kg in soil treated with dazomet. Fertilizer nitrogen did not affect nematode numbers or root blackening but decreased nodulation and increased mycorrhizal infection by Endogone sp. in untreated soil. Dazomet greatly decreased migratory nematodes of the genera Tylenchorhynchus and Trichodorus and eliminated Pratylenchus. It had little effect on root blackening in the top 10 cm of soil but decreased it in the next 10 cm. Infection with Endogone was almost eliminated.

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References

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Hornby, D. & Salt, G. A. (1969). Wilting of field beans (Vicia faba L.). Rep. Rothamsted exp. Stn for 1968, Pt 1, p. 141.
McEwen, J. (1970). Fertilizer nitrogen and growth regulators for field beans (Vicia faba L.). I. J. agric. Sci., Camb. 74, 61–6.
Mosse, B. (1971). Effect of Endogone mycorrhiza on plant growth. Rep. Rothamsted exp. Stn for 1970, Pt 1, pp. 8990.
Phillips, J. M. & Hayman, D. S. (1970). Improved procedures for clearing roots and staining parasitic and vesicular-arbuscular mycorrhizal fungi for rapid assessment of infection. Trans. Br. mycol. Soc. 55, 158.
Salt, G. A. & Hornby, D. (1971 a). Root rot and wilt of field beans (Vicia faba). Proc. 6th Br. Insectic. Fungic. Conf. (1971).
Salt, G. A. & Hornby, D. (1971 b). Rep. Rothamsted exp. Stn for 1970, Pt 1, pp. 136–7.
Whitehead, A. G. & Fraser, Janet E. (1972). Injury to Field Beans (Vicia faba L.) by Tylenchorhynchus dubius. Pl. Path. 21, 112113.
Whitehead, A. G., Dunning, R. A. & Cooke, D. A. (1970). Docking Disorder and Root Ectoparasitic Nematodes of Sugar Beet. Rep. Rothamsted exp. Stn for 1970, Pt 2, pp. 219–36.
Whitehead, A. G. & Hooper, D. J. (1970). Needle nematodes (Longidorus spp.) and stubby-root nematodes (Trichodorus spp.) harmful to sugar beet and other field crops in England. Ann. appl. Biol. 65, 339–50.

The effects of dazomet and fertilizer nitrogen on field beans (Vicia faba L.)

  • J. McEwen (a1), G. A. Salt (a1) and D. Hornby (a1)

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