The effect of trophism level and exploitation intensity on the production characteristics of grassland community dominated by Festuca arundinacea Schreb.

Hrabě, F.; Knot, P.

doi:10.17221/359/2010-pse

Cited by 6 publications

(5 citation statements)

References 6 publications

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“…In general small or creeping grasses like Red Fescue or Bentgrass profi ted from high number of cuts per year and conversely tall grasses (Timothy, Tall Fescue) had benefi t from two-cut management. As the production of dry matter was also higher on extensively managed plots, tall tu ed grasses appear to be dominant production species as reported by Hrabě and Knot (2011). Responses of main grass species to exploitation intensity are presented in Fig.…”

Section: Resultssupporting

confidence: 67%

“…They also refer to dominant eff ect of nutrition level and rather lower eff ect of exploitation intensity on the production of biomass. Hrabě and Knot (2011) also state that management with four cuts per year is unfavourable in terms of yields of dry matter, yet forage quality is higher due to younger developmental stage of harvested forage. Especially concentration of N-substances is higher and thus total yield of crude protein is higher by more than 20 % in comparison to two-cut variants.…”

Section: Resultsmentioning

confidence: 99%

“…Then it follows that semi-natural permanent meadows, as a result of the concurrence of many factors, represent a great reservoir of biodiversity. Among anthropogenic activities, the fertilization appears to be the most important factor aff ecting fl oristic composition and yields, whilst the intensity of exploitation infl uences mainly quality of forage (Mrkvička and Veselá, 2002;Hrabě and Knot, 2011). Especially nitrogen fertilization causes rapid shi s in the sward composition supporting growth of tu ed grasses at the expense of legumes and other forbs (Silvertown et al, 2006).…”

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confidence: 99%

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Effect of fertilization and harvest frequency on floristic composition and yields of meadow stand

Raus¹,

Knot²,

Hrabě³

2013

Acta Univ. Agric. Silvic. Mendelianae Brun.

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The effect of fertilization and the harvest frequency on production and floristic characteristics of a meadow stand were assessed in a small plot trial established in 2003 in Vatín, Vysočina Region, the Czech Republic. Four levels of fertilization (none; N0 + P30 + K60 kg∙ha−1; N90 + P30 + K60 kg∙ha−1; N180 + P30 + K60 kg∙ha−1) were combined with four treatments of exploitation intensity (4 cuts per year, first cut on 15th May, every next after 45 days; 3 cuts per year, first cut on 30th May, every next after 60 days; 2 cuts per year, first cut on 15th June, next after 90 days; 2 cuts per year, first cut on 30th June, next after 90 days). Production of dry matter and proportions of guilds (grasses, legumes, and other species) were evaluated. Data from 2009–2011 were used in this paper. Yields of the dry matter increased along with increasing amounts of nutrients supplied and ranged from 3.8 t∙ha−1 (non-fertilized) to 9.1 t∙ha−1 (N180PK). The nutrition level had a significant effect on spread of grasses, which reached maximal proportion of 52.3 % under N180PK fertilization compared to 42.1% on non-fertilized plots. On the contrary, legumes flourished well in treatments without N-supply, attaining proportion of 6.8 % and 5.1 % on PK-fertilized and non-fertilized plot, respectively. With regard to the exploitation intensity grasses profited from extensive management by contrast to the group of other species which reached its maximum in swards harvested four times a year. Proportions of legumes did not show significant dependence on the cutting frequency.

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Section: Resultssupporting

confidence: 67%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

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Effect of fertilization and harvest frequency on floristic composition and yields of meadow stand

Raus¹,

Knot²,

Hrabě³

2013

Acta Univ. Agric. Silvic. Mendelianae Brun.

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“…Quality of four-cut swards was evaluated as the worst here, what is in contradiction with outcomes of chemical analyses. Formerly published results of this trial (Hrabě and Knot, 2011) as well as parallel trial in Jevíčko (Nerušil et al, 2008) reported better values of qualitative parameters (e. g. crude protein, fi bre, NEL) of forage from four-and three-cut swards and summarized that number of cuts had a crucial eff ect on fodder quality. The explanation of this could be simple.…”

Section: : Simpson Diversity Index (Sim) In Relation To Cutting Patmentioning

confidence: 80%

Effect of Cutting Pattern and Fertilization Level on Species Diversity and Evaluation of Grassland Quality

Raus¹,

Knot²,

Skládanka³

et al. 2014

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Abstract) were combined with four treatments of exploitation intensity (4 cuts per year, fi rst cut on 15 th May, every next a er 45 days; 3 cuts per year, fi rst cut on 30 th May, every next a er 60 days; 2 cuts per year, fi rst cut on 15 th June, next a er 90 days; 2 cuts per year, fi rst cut on 30 th June, next a er 90 days). Numbers of species, Simpson's diversity index and evaluation of grassland quality according to Novák (2004) were evaluated. Numbers of species and Simpson's diversity index were signifi cantly aff ected by both fertilization level and cutting pattern. Species richness decreased along with increasing fertilization rates from 29.4 (no fertilization) to 27.8 (N180PK). When comparing cutting pattern treatments the highest species richness was found in four-cut swards (29.6 in average of fertilization levels) and it declines towards late double-cut regime (27.2). The Simpson's index generally increased from two-cut swards to four-cut and from fertilized treatments to control. Grassland quality was signifi cantly aff ected by cutting pattern. Values increased from four-cut swards (38.1) to two-cut ones (43.8 and 44.0 in early and late harvest respectively).

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“…Currently, there are few long-term studies on the development of forage quality in permanent grasslands [23][24][25][26]. In many cases, only results from one-to three-year experimental studies have been published [27][28][29][30], or the quantity and quality of forage production of different meadow types have been evaluated [31,32].…”

Section: Introductionmentioning

confidence: 99%

The Dessau Grassland Experiment—Impact of Fertilization on Forage Quality and Species Assembly in a Species-Rich Alluvial Meadow

et al. 2021

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Since alluvial meadows of river valleys of the Cnidion dubii are protected by the EU Habitats Directive, reconciling farmers’ demands for forage quality with the objective of maintaining them in good conservation status is an important issue in grassland research. In a long-term experiment from 2010 to 2018, we investigated the impact of fertilizing on forage quality and species assembly on a species-rich and twice-mown alluvial grassland in the Dessau Elbe floodplain (Germany). The experiment was composed of an unfertilized control, PK, N60, N60PK and N120PK applications. A significant improvement in forage quality was achieved by nitrogen fertilization only for crude protein, with higher feeding requirements for sheep met only in individual years. The legume cycle was inhibited by the application of nitrogen and high grass cover was maintained, but not increased, at the highest nitrogen application after an exceptional summer flood. The target forbs persisted in numbers over the study period in all treatments. For cover, the low-competitive target forbs responded neutrally to nitrogen fertilization, whereas detrimental effects were demonstrated for the competitive ones. Thus, we recommend not applying more than 60 kg year−1 of nitrogen and only in combination with phosphorus and potassium.

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The effect of trophism level and exploitation intensity on the production characteristics of grassland community dominated by Festuca arundinacea Schreb.

Cited by 6 publications

References 6 publications

Effect of fertilization and harvest frequency on floristic composition and yields of meadow stand

Effect of fertilization and harvest frequency on floristic composition and yields of meadow stand

Effect of Cutting Pattern and Fertilization Level on Species Diversity and Evaluation of Grassland Quality

The Dessau Grassland Experiment—Impact of Fertilization on Forage Quality and Species Assembly in a Species-Rich Alluvial Meadow

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