Defoliation ofLolium perenneandAgrostisspp. tillers, andTrifolium repensstolons in set-stocked and rotationally grazed hill pastures

Clark, D.A.; Chapman, D. F.; Land, C. A.; Dymock, N.

doi:10.1080/00288233.1984.10430628

Cited by 29 publications

(27 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Tillers are grazed in direct proportion to their pre-defoliation tiller heights. This agrees with other findings on frequency and intensity of tiller defoliation (Morris 1969, Briske and Stuth 1982, Hart and Balla 1982, Clark et al 1984. About 20-30% of the pre-defoliation tiller height is observed to be removed per defoliation event by sheep or cattle (Heitschmidt et al 1990).…”

Section: List Of Tablessupporting

confidence: 81%

“…Clipping little bluestem after apical meristems have been elevated stimulates tillering the first year (Jameson and Huss 1959 (Mullahey et al 1990). This change in the size of plants and plant parts commonly occurs in response to heavy grazing (Hanson et al 1931, Holscher 1945, Weaver and Darland 1947 (Hodgson 1966, Morris 1969, Briske and Stuth 1982, Curll and Wilkins 1982, Hart and Balla 1982, Jensen et al 1990; 2) the relative relationship between defoliation frequency and intensity (Cassady 1953, Owensby et al 1974, Buwai and Trlica 1977, Gammon and Roberts 1978c, Clark et al 1984, Mullahey et al 1990); and 3) the importance of tiller architecture i.e., height, total lamina length and location in the canopy, in determining defoliation probabilities (Greenwood and Arnold 1968, Hodgson and Ollerenshaw 1969, Bartham and Grant 1984, Pierson and Scarnecchia 1987, Heitschmidt et al 1990). …”

Section: List Of Tablesmentioning

confidence: 99%

“…2). Clark et al (1984), using perennial ryegrass (Lolium perenne L.), browntop (Agrostis spp. ), and white clover (Trifolium repens L.), observed all species were defoliated more frequently under continuous grazing than rotational grazing when rest periods exceeded 21 days.…”

Section: Number Of Defoliations In a Grazing Seasonmentioning

confidence: 99%

See 2 more Smart Citations

Little Bluestem Tiller Defoliation Patterns under Continuous and Rotational Grazing

Derner¹,

Gillen²,

McCollum³

et al. 1994

Journal of Range Management

View full text Add to dashboard Cite

Section: List Of Tablessupporting

confidence: 81%

Section: List Of Tablesmentioning

confidence: 99%

See 1 more Smart Citation

Little Bluestem Tiller Defoliation Patterns under Continuous and Rotational Grazing

Derner¹,

Gillen²,

McCollum³

et al. 1994

Journal of Range Management

View full text Add to dashboard Cite

“…Growth rates of white clover measured in swards under rotational grazing have been higher than under set stocked grazing (Chapman et al 1983;Clark et al 1984). Growth diluti-on in the faster growing rotationally grazed white clover, may contribute to lower Nand P contents (Whitehead 1966).…”

Section: Discussionmentioning

confidence: 99%

Effect of grazing management and season on nitrogen and phosphorus content of leaves and stolons of white clover in mixed swards

Hay¹,

Nes²,

Robertson³

1985

New Zealand Journal of Experimental Agriculture

View full text Add to dashboard Cite

To cite this article: M. J. M. Hay , P. Nes & M. R. Robertson (1985) Effect of grazing management and season on nitrogen and phosphorus content of leaves and stolons of white clover in mixed swards, New Zealand Journal of Experimental Agriculture, 13:3, 209-214, DOI: 10.1080/03015521.1985 The nitrogen (N) and phosphorus (P) contents of leaf, surface stolon, and buried stolon of white clover (Trifolium repens L.) were measured in samples taken every 2 months, from pasture under rotational grazing by cattle (RGC) and set stocking by sheep (SSS), for 3 years. The effect of the system of grazing management of sheep on Nand P content of 3 herbage classes of white clover was examined during a I-year period by analysing samples taken monthly from pastures with 3 different management backgrounds; set stocked (SS), rotationally grazed (RS) or set stocked from lambing to drafting, then rotationally grazed for the rest of the year (CS). In the 3-year study, the content of N did not differ between the RGC and SSS treatments but the mean values of 4.59% in leaf, 2.75% in surface stolon, and 2.22% in buried stolon all differed. However, P contents differed between treatments: with RGC treatment, mean P levels decreased (0.43, 0.29, and 0.23% for leaf, surface stolon, and buried stolon respectively) whereas, with SSS treatment, contents in each of the respective herbage classes were higher and differences among the herbage classes were much smaller, the only significant difference occurring with buried stolon (0.51,0.51, and 0.47% for leaf, surface stolon, and buried stolon respectively). The system of sheep grazing management affected both Nand P contents in the same manner, with contents decreasing in the order SS > CS > RS. Again, there was a marked decrease in mean N content of the herbage classes in the order leaf (4.35%), surface stolon (2.97%), and buried stolon (2.11%), whereas the mean P contents of the herbage classes differed Received 21 March 1985. revision 10 May 1985 much less, with buried stolon (0.43%) being lower than leaf and surface stolon (both 0.51%). Seasonal variation in both Nand P content of each of the herbage classes in both studies followed the same trend -higher values during the moist, cooler part of the year (May-September) and lower values during the drier, warmer period (January-March).

show abstract

“…Concurrently, information on ramet death was obtained. Previous papers have presented data on the components of leaf growth (Chapman et al 1983) and defoliation (Clark et al 1984) collected in the same study.…”

Section: Introductionmentioning

confidence: 94%

Leaf and tiller or stolon death ofLolium perenne, Agrostisspp., andTrifolium repensin set-stocked and rotationally grazed hill pastures

Chapman¹,

Clark²,

Land³

et al. 1984

New Zealand Journal of Agricultural Research

Self Cite

View full text Add to dashboard Cite

Leaf and tiller or stolon death of Lo/ium perenne, Agrostis spp., and Trifolium repens in set-stocked and rotationally grazed hill pastures AbstractLeaf death rates, leaf longevity, and tiller and stolon death rates of Lolium perenne, Agrostis spp. and Trifolium repens were compared for one year on hill pastures which were set-stocked and rotationally grazed by sheep. Leaf death rates and leaf longevity were largely unaffected by grazing management, and the number oflive leaves per tiller or stolon did not differ greatly between managements. Agrostis spp. had more leaves per tiller than L. perenne. Leaf longevity was least in spring and summer when leaf death rates were fastest, and was greatest in winter when leaf death rates were slowest. In autumn, spring, and summer, mortality of leaves occurred within 3 weeks of their appearance, resulting in the loss of up to 28% of leaves which had been formed soon after one grazing before the next grazing under the rotational management. The long rotation in winter (63 days) resulted in the death of many leaves before they had a chance to be grazed. Leaf utilisation data showed that 20-46% of L. perenne leaf tissue, 45-63% of Agrostis spp. leaf tissue, and 34-60% of T. repens leaf production was ungrazed and subsequently died and decayed. Grazing pressure is critical in determining the amount of leaf tissue entering the litter pool, and has a considerable influence on tiller and stolon death.

show abstract

Defoliation ofLolium perenneandAgrostisspp. tillers, andTrifolium repensstolons in set-stocked and rotationally grazed hill pastures

Cited by 29 publications

References 15 publications

Little Bluestem Tiller Defoliation Patterns under Continuous and Rotational Grazing

Little Bluestem Tiller Defoliation Patterns under Continuous and Rotational Grazing

Effect of grazing management and season on nitrogen and phosphorus content of leaves and stolons of white clover in mixed swards

Leaf and tiller or stolon death ofLolium perenne, Agrostisspp., andTrifolium repensin set-stocked and rotationally grazed hill pastures

Contact Info

Product

Resources

About