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Reasons for poor establishment of direct re‐seeded grassland
Author(s) -
MARSHALL A. H.,
NAYLOR ROBERT E. L.
Publication year - 1984
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1984.tb02805.x
Subject(s) - sowing , biology , grassland , agronomy , drill , seeding , agroforestry , materials science , metallurgy
SUMMARY These experiments suggest a number of causes for the poor establishment of direct reseeded grass. An adequate supply of moisture to the seed is of prime importance and burial of trash in drill slits may impair this supply by preventing seed/soil contact directly or by preventing closure of the drill slit. Management techniques which aim to reduce the burden of trash in areas to be sown by direct drilling, usually result in improvements in emergence. This is achieved by improved seed/soil contact, reduced evaporation of water from an open drill slit and lowered probability of phytotoxic leachates being produced. It is possible that benefits might be achieved were it possible to select for sowing seed of proven high vigour, i.e. seed that establishes well in poor conditions.