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	Full TGIF Record # 136413 Item 1 of 1
Publication Type:	Proceedings
Author(s):	Clements, R. O.; Henderson, I. F.
Author Affiliation:	Clements: The Grassland Research Institute, Hurley, Maidenhead, Berks, Great Britian; Henderson: Rothamsted Experimental Station, Harpenden, Herts, Great Britian
Title:	Some consequences of a prolonged absence of invertebrates from a perennial ryegrass sward
Section:	Plant disease, harmful plants, and their control on grassland: Pest and pathogenic agents Other records with the "Plant disease, harmful plants, and their control on grassland: Pest and pathogenic agents" Section
Source:	International Grassland Congress, Proceedings. Vol. 2, 1977, p. 1261-1263.
# of Pages:	3
Publishing Information:	Zurich, Etc., V. P.
Keywords:	TIC Keywords: Invertebrates; Lolium perenne; Pesticide application; Soil structure; Bulk density; Soils; Weed invasion
Abstract/Contents:	"In a long-term experiment, substantial increases in herbage yield, of up to 24% have been obtained by applying large experimental doses of pesticides to a sward of perennial ryegrass (Lolium perenne). Good control of all the invertebrate fauna was achieved. The long-term absence of beneficial species such as earthworms has led to deleterious effects on soil structure with a consequent effect on yield improvements. Other observations show that the layer of lead litter on the soil surface of pesticide-treated plots has built up considerably and that the bulk density of the soil in these plots has increased. Weed invasion has, however been retarded."
Language:	English
References:	0
Note:	Tables Graphs
	ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Clements, R. O., and I. F. Henderson. 1977. Some consequences of a prolonged absence of invertebrates from a perennial ryegrass sward. p. 1261-1263. In International Grassland Congress, Proceedings. Zurich, Etc., V. P.
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