scholarly journals Improving quality of common reed (Phragmites communis Trin.) silage with additives

2018 ◽  
Vol 31 (11) ◽  
pp. 1747-1755 ◽  
Author(s):  
Keigo Asano ◽  
Takahiro Ishikawa ◽  
Ayako Araie ◽  
Motohiko Ishida
Biologia ◽  
2008 ◽  
Vol 63 (2) ◽  
Author(s):  
Iva Němečková ◽  
Vojtěch Mrlík ◽  
Pavel Drozd

AbstractDuring 2002–2005 we analyzed Lack’s Hypothesis about the timing of the breeding of marsh harriers (Circus aeruginosus) in the Poodří to the breeding period and preference of heterogeneous habitat. An analysis of 43 nests revealed quantitative differences. Birds which started breeding earlier, reached significantly higher reproductive success than later breeding birds regardless of nesting habitat (P = 0.003, n nests = 43). Even when the birds invested into their offspring the same way, their breeding success was not always the same. When the females nested in the common reed (Phragmites communis), they reached higher reproductive output than females nesting in cattail (Typha sp.) (P = 0.01, n cattail = 18, n common reed = 25). The habitat of the common reed is characterized by higher and denser vegetation cover than cattail vegetation (P < 0.001, n measurements = 174 for both variables).


2021 ◽  
Vol 25 (1) ◽  
pp. 676-687
Author(s):  
Oskars Purmalis ◽  
Laura Grīnberga ◽  
Linards Kļaviņš ◽  
Māris Kļaviņš

Abstract Lake ecosystems are important elements of hydrological regime, the quality of these ecosystems is affected by anthropogenic actions, and therefore, a variety of organisms, living in these habitats depend on the applied management solutions. Due to human activities freshwater ecosystems suffer from loss of biodiversity and increased eutrophication. Therefore, important aspects related to lake management include knowledge about the water quality, ecosystem response to climate change as well as increased risks of appearance and spreading of invasive species. Water quality, content of oxygen, nutrients, phytoplankton and distribution of macrophytes, including invasive species were analysed in Balvu and Pērkonu lakes. Presence of invasive species Canadian waterweed (Elodea canadensis) was detected, however, common reed (Phragmites australis) can be considered as expansive species. The analysis of current situation and existing management measures indicates persistent spreading of those species. Significant changes of lake water quality and climate may increase possible spreading of other, more aggressive, invasive species, for example – Nuttall’s waterweed (Elodea nuttallii).


2003 ◽  
Vol 2003 ◽  
pp. 114-114 ◽  
Author(s):  
A. R. Aghashahi ◽  
A. Nikkhah

The common reed (CR) is one of the plants which grows in some area of Iran and other world countries especially in coastal wetlands. Feed resource restriction is the most problem in animal production in some area and native plants have a key role. Ensiling may improve the quality of crop or decrease by high fermentation. These effects depend on stage of growth, chemical composition, dry matter and nutrients of plant, and final effect is not as same as for all crops. For understanding the effect of ensiling on quality of each plant must be investigate. For this reasons goals of this experiment was investigation on various methods of utilization of CR for finishing male calves and comparison with alfalfa.


Paleobiology ◽  
1978 ◽  
Vol 4 (3) ◽  
pp. 302-319 ◽  
Author(s):  
Richard M. Hansen

The feces of the Shasta ground sloth (Nothrotheriops shastense), preserved by the arid climate of the lower Grand Canyon, were collected at various levels and examined by microhistological analyses to identify and quantify plant taxa in the diet. Over 500 pieces of different Shasta sloth coprolites were examined. Sloth dung from the nearby Muav Caves was examined and compared with that from Rampart Cave.Seventy-two genera of plants were identified in the sloth dung deposited discontinuously from over 40,000 to about 11,000 yr BP. The major plant taxa in the Rampart Cave sloth diets were desert globemallow (Sphaeralcea ambigua = 52%), Nevada mormontea (Ephedra nevadensis = 18%), saltbushes (Atriplex spp. = 7%), catclaw acacia (Acacia greggii = 6%), Cactaceae spp. (= 3%), common reed (Phragmites communis = 5%), and yucca (Yucca spp. = 2%).Six of the most abundant plants in sloth diets were collected in the environs of Rampart Cave and were analyzed for their energy, fiber and nutrient values. The simulated diets of Rampart Cave sloths averaged 1679 cal/g in digestible gross energy and 7.9% for digestible protein. Apart from a substantial increase in digestible energy and in mormontea there was no unusual change in the sloth diet immediately prior to the time of their extinction.The ecological role of Nothrotheriops shastense is less dramatically different from that of extant desert herbivores than was previously believed.


Author(s):  
K. Subramanya Sastry ◽  
Bikash Mandal ◽  
John Hammond ◽  
S. W. Scott ◽  
R. W. Briddon

2017 ◽  
Vol 6 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Шулаев ◽  
N. Shulaev ◽  
Пряничникова ◽  
V. Pryanichnikova ◽  
Кадыров ◽  
...  

A way for restoration of soils polluted at oil production using plants has been described. Experiments on a research related to influence of oil and produced waters’ various volumes on mace reed (Týpha latifólia) and common reed grass (Phragmites communis) seeds viability have been carried out. These perennial plants’ reaction nature on soils pollution by salts’ model solution corresponding on structure to produced waters of fields has been studied. Statistical data processing has been carried out, and germinating ability-pollution content relationships have been described. Indicators for dynamics of germinating ability suppression have been presented. The obtained data demonstrates a possibility for use of hygrophilous vegetation’s described species at re-cultivation related to sites of oilfield soils with increased moistening as independently, and with preliminary preparation through other treatment technologies.


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