/pdf/the-biology-and-non-chemical-control-of-mugwort-artemisia-4xwzpsvkay.pdf

Comparative plant ecology

The biology and non-chemical control of Mugwort (Artemisia vulgaris L.)

Entropy Maximization and Species Abundance.

Occurrence Onion couch is a tall perennial grass that occurs throughout the UK both as an arable weed and as a component of semi-natural grassland (Cussans et al., 1992). It is recorded up to 1,800 ft in Britain (Salisbury, 1961). Onion couch owes its name to the swollen stem internodes or ‘bulbs’ at or just beneath the soil surface. It is met with locally, particularly on lighter soils, and once established is diff icult to get rid of (Long, 1938). It is a problem on open textured loams and is common on limestone brash and chalk downs (Rees & Sherrott, 1991). There is usually no obvious relationship between soil type and distribution but rainfall patterns may play a key role (Cussans et al., 1993). It is common on moderately fertile soils of pH 5.0 to 8.0 (Pfitzenmeyer, 1962). It cannot tolerate shade and is sensitive to low temperatures and exposure to wind. The bulbous form is more sensitive to frost than the nonbulbous one. Onion couch is not as drought tolerant as some grass species, although the roots penetrate deeply into the soil . It is said not to tolerate waterlogging in winter. Onion couch does not tolerate trampling and is absent from gateways (Pfitzenmeyer, 1962). It responds positively to applications of manure.

background

/pdf/the-biology-and-non-chemical-control-of-onion-couch-1h0ibrv083.pdf

The biology and non-chemical control of Onion Couch (Arrhenatherum elatius ssp. bulbosum P.Beauv. ex J&C. Presl Var. bulbosum (Willd.) St-Amans)

/pdf/the-biology-and-non-chemical-control-of-hairy-bittercress-dyygopowxt.pdf

The biology and non-chemical control of Hairy Bittercress (Cardamine hirsuta L.)

Disturbance, microclimate and historical habitat connectivity determine the population performance of the threatened grassland specialist Carex caryophyllea in remnant grasslands

Comparative plant ecology

Citations

The biology and non-chemical control of Mugwort (Artemisia vulgaris L.)

Entropy Maximization and Species Abundance.

The biology and non-chemical control of Onion Couch (Arrhenatherum elatius ssp. bulbosum P.Beauv. ex J&C. Presl Var. bulbosum (Willd.) St-Amans)

The biology and non-chemical control of Hairy Bittercress (Cardamine hirsuta L.)

Disturbance, microclimate and historical habitat connectivity determine the population performance of the threatened grassland specialist Carex caryophyllea in remnant grasslands

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