Soil potassium supply and Rumex obtusifolius and Rumex crispus abundance in silage and grazed grassland swards

Weed Research

Volumn 39, Issue 1, 1999, Pages 1-13

  Humphreys, J ^a,c   Jansen, T ^a   Culleton, N ^a   Macnaeidhe, F S ^a   Storey, T ^b  

^a TEAGASC   (Ireland)

^b UNIVERSITY COLLEGE DUBLIN   (Ireland)

^c GRANGE RESEARCH CENTRE   (Ireland)

Author keywords

Grazing; Population density; Potassium; Rumex; Silage

Indexed keywords

ABUNDANCE; GRASSLAND; POTASSIUM; SOIL NUTRIENT;

RUMEX CRISPUS; RUMEX OBTUSIFOLIUS;

EID: 0033031024     PISSN: 00431737     EISSN: None     Source Type: Journal    
DOI: 10.1046/j.1365-3180.1999.00123.x     Document Type: Article

References (40)

1. BERINGER H & NOTHDURFT F (1985) Effects of potassium on plant and cellular structures. In: Potassium in Agriculture (ed. RD MUNSON), 353-367. American Society of Agronomy, Madison, WI, USA.
2. BLAGDEN PA (1989) Soil fertility in Ireland - Potassium. Farm and Food Research 20, 28-30.
3. BOSWORTH SC, HOVELAND CS & BUCHANAN GA (1986) Forage quality of selected cool-season weed species. Weed Science 34, 150-154.
4. BYRNE E (1979) Chemical Analysis of Agricultural Materials. Teagasc, Johnstown Castle, Wexford.
5. CHANCELLOR RJ (1970) Biological background to the control of three perennial broad-leaved weeds. In: Proceedings 10th British Weed Control Conference, Brighton, 1114-1130.
6. COURTNEY AD (1972) Docks in grassland, their influence on herbage productivity. In: Proceedings 11th British Weed Control Conference, Brighton, 315-322.
7. COURTNEY AD (1985a) Impact and control of docks in grassland. In: British Grassland Society, Occasional Symposium, No. 18, 120-127.
8. COURTNEY AD (1985b) The role and importance of docks in grassland. Agriculture in Northern Ireland 59, 388-392.
9. COURTNEY AD & JOHNSON RT (1974) Time of herbicide application for the control of docks (Rumex obtusifolius) in a grassland conservation system. In: Proceedings 12th British Weed Control Conference, Brighton, 751-757.
10. COURTNEY AD & JOHNSTON R (1978) A consideration of the contribution to production of Rumex obtusifolius in a grazing regime. In: Proceedings 1978 British Crop Protection Conference - Weeds, Brighton, 325-331.
11. DERRICK RW, MOSELEY G & WILMAN D (1993) Intake, by sheep, and digestibility of chickweed, dandelion, dock, ribwort and spurrey, compared with perennial ryegrass. Journal of Agricultural Science, Cambridge 120, 51-61.
12. DOYLE CJ, OSWALD AK, HAGGAR RJ & KIRKHAM FW (1984) A mathematical modelling approach to the study of the economics of controlling Rumex obtusifolius L. in grassland. Weed Research 24, 183-193.
13. EDMOND DB (1970) Effects of treading on pastures using different animals and soils. In: Proceedings 11th Grassland Congress, Surfers Paradise, 604-608.
14. FAIRBURN CB & THOMAS B (1959) The potential nutritive value of some weeds common to north-eastern England. Journal of the British Grassland Society 14, 36-46.
15. FLEMING GA & COULTER BS (1963) Mineral Elements in Pasture Plants. In: Proceedings First Regional Conference of the International Potash Institute, Wexford, Ireland, 63-70.
16. FLEMING GA & MURPHY WE (1968) The uptake of some major and trace elements by grasses as affected by season and the stage of maturity. Journal of the British Grassland Society 23, 174-185.
17. FRAME J & HARKNESS RD (1972) Herbicides for control of docks (Rumex spp.) in grassland. In: Proceedings 11th British Weed Control Conference, Brighton, 323-330.
18. GARDINER MJ & RADFORD T (1980) Soil Associations of Ireland and Their Land Use Potential. Soil Survey Bulletin no. 36. Teagasc, 19 Sandymount Avenue, Dublin 4.
19. GATELY TF (1994) Soil Analysis and Fertilizer, Lime, Animal Manure and Trace Element Recommendations. Teagasc, Johnstown Castle, Wexford.
20. GOMEZ KA & GOMEZ AA (1984) Statistical Procedures for Agricultural Research, 2nd edn. A Wiley-Interscience publication, printed in Singapore.
21. HAGGAR RJ (1980) Survey of the incidence of docks (Rumex spp.) in grassland in ten districts in the United Kingdom in 1972. Agricultural Development and Advisory Service (ADAS) Quarterly Review 39, 256-270.
22. HARPER JL (1977) Population Biology of Plants. Academic Press, London.
23. HEMINGWAY RG (1961) Magnesium, potassium, sodium and calcium contents of herbage as influenced by fertilizer treatments over a three-year period. Journal of the British Grassland Society 16, 106-116.
24. HOPKINS A (1986) Botanical composition of permanent grassland in England and Wales in relation to soil, environment and management factors. Grass and Forage Science 41, 237-246.
25. HUBER SC (1985) Role of potassium in photosynthesis and respiration. In: Potassium in Agriculture (ed. RD MUNSON), 369-396. American Society of Agronomy, Madison, WI, USA.
26. HUGHES GNG, FROUD-WILLIAMS RJ & FOX RTV (1993) The effects of fragmentation and defoliation of Rumex obtusifolius and its implications for grassland management. In: Proceedings 1993 Brighton Crop Protection Conference - Weeds, Brighton, 767-772.
27. JEANGROS B & NÖSBERGER J (1990) Effects of an established sward of Lolium perenne L. on the growth and development of Rumex obtusifolius L. seedlings. Grass and Forage Science 45, 1-8.
28. MCGHIE DA, SPIVULIS R, DIXON FF, SAWYER GJ, MCMULLEN G & SILCOCK J (1983) Dock - weed or pasture plant? Journal of Agriculture, Western Australia 24, 87-89.
29. MENGEL K (1985) Potassium movement within plants and its importance in assimilate transport. In: Potassium in Agriculture (ed. RD MUNSON), 397-411. American Society of Agronomy, Madison, WI, USA.
30. MENGEL K (1989) Experimental approaches of K+ efficiency in different crop species. Methods of K-Research in Plants. In: Proceedings 21st Colloquium of the International Potash Institute, Bern, Switzerland, 67-76.
31. MUHLETHALER P (1972) Dock control in meadows and pastures with asulam. Mitteilungen für die Schweizerische Landwirtschaft 20, 14-18.
32. NIGGLI U, NÖSBERGER J & LEHMANN J (1993) Effects of nitrogen fertilization and cutting frequency on the competitive ability and the regrowth capacity of Rumex obtusifolius L. in several grass swards. Weed Research 33, 131-137.
33. OSWALD AK & HAGGAR RJ (1976) The effect of asulam on two Lolium perenne swards containing Rumex obtusifolius. Weed Research 16, 7-10.
34. OSWALD AK & HAGGAR RJ (1983) The effects of Rumex obtusifolius on the seasonal yield of two mainly perennial ryegrass swards. Grass and Forage Science 38, 187-191.
35. PEEL S & HOPKINS A (1980) The incidence of weeds in grassland. In: Proceedings 1980 Crop Protection Conference, Brighton, 3, 877-890.
36. PEGTEL DM (1987) Soil fertility and the composition of semi-natural grassland. In: Disturbance in Grasslands, (eds J VAN ANDEL, JP BAKKER & RW SNAYDON), 51-66. Dr W. Junk, Dordrecht.
37. ROBINSON DL (1985) Potassium nutrition of forage grasses. In: Potassium in Agriculture (ed. RD MUNSON), 895-914. American Society of Agronomy, Madison, WI, USA.
38. TUNNEY H (1990) A note on a balance sheet approach to estimating the phosphorus fertilizer needs of agriculture. Irish Journal of Agricultural Research 29, 149-154.
39. WHITE J & HARPER JL (1970) Correlated changes in plant size and number in plant populations. Journal of Ecology 58, 467-485.
40. WILMAN D & RILEY JA (1993) Potential nutritive value of a wide range of grassland species. Journal of Agricultural Science, Cambridge 120, 43-49.