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Physical effects of direct drilling equipment on undisturbed soils. III. Wheat seedling performance and in-groove micro-environment in a dry soil

Choudhary, M.A.; Baker, C.J.

New Zealand Journal of Agricultural Research 24(2): 189-195

1981


ISSN/ISBN: 0028-8233
Accession: 001108745

A method of measuring soil relative humidity at the seed-soil zone in direct drilled grooves is described. Grooves were formed by several combinations of three selected coulter types and three seed covering methods. Wheat seeds were held under controlled constant climatic conditions in a soil initially under severe moisture stress. There was a negative correlation between the in-groove relative humidity and combined counts of seedling emergence and sub-surface unemerged seedling survival.

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