scholarly journals Dry matter production and chemical composition of tropical forage legumes under different shading levels

2019 ◽  
Vol 41 (1) ◽  
pp. 43526
Author(s):  
João Carlos De Carvalho Almeida ◽  
Leonardo Fiusa de Morais ◽  
Raphael Pavesi Araújo ◽  
Mirton José Frota Morenz ◽  
João Batista Rodrigues de Abreu ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Forage Legumes ◽  
Matter Production ◽  
Tropical Forage

EFFECTS OF SOME TRACE ELEMENTS ON GRASS AND LEGUME PRODUCTION IN NOVA SCOTIA

1962 ◽  
Vol 42 (1) ◽  
pp. 46-52 ◽  
Author(s):  
G. G. Smeltzer ◽  
W. M. Langille ◽  
K. S. MacLean
Keyword(s):  
Trace Elements ◽  
Nova Scotia ◽  
Chemical Composition ◽  
Field Experiment ◽  
Plant Tissue ◽  
Dry Matter ◽  
Soil Types ◽  
Dry Matter Production ◽  
Matter Production ◽  
Legume Production

In a field experiment, conducted on four different soil types, trace elements cobalt, zinc, manganese, copper, sodium and molybdenum were applied by sprayer to a grass-legume sward in late September in both 1955 and 1956. Treatment differences were evaluated in terms of total dry matter production and by the chemical composition of the plant tissue. The elements applied were detectable in plant tissue, but herbage yields were not affected. Apparently the trace elements in these different soil types were in the range of sufficiency for maximum herbage production.

scholarly journals Effects of enclosure management and rangeland sites on chemical composition of herbaceous species in south central Ethiopia

2020 ◽  
Vol 14 (1) ◽  
pp. 38-46
Author(s):  
Ayana Angassa Abdeta ◽  
Mulugeta Gudisa Gudisa Gudisa ◽  
Aster Abebe Abebe ◽  
Kenea Feyisa Feyisa ◽  
Alemayehu Mengistu Mengistu
Keyword(s):  
Chemical Composition ◽  
Dry Matter ◽  
Grazing Management ◽  
Management Systems ◽  
Dry Matter Production ◽  
Grass Species ◽  
Herbaceous Species ◽  
Central Ethiopia ◽  
South Central ◽  
Matter Production

This study was conducted in Adami-Tullu Jido-Kombolcha and Arsi Negelle districts, south central Ethiopia. The objectives of the study were to evaluate the interactive effects of grazing management systems and rangeland sites on dry-matter production and chemical composition of herbaceous plants in south central Ethiopia. Data were analyzed using GLM procedure in SPSS 16.0 version, which was used for mean comparisons using post-hoc t-test that can be employed to compare mean differences for enclosure and open-grazed areas. To test the effects of management systems and altitudinal variation on dry-matter production and chemical composition of herbaceous species, mixed model analysis was employed using sample site as a random variable while grazing management systems and altitude were fixed variables. A total of 28 herbaceous species were identified. Of the identified herbaceous species, 20 species were grasses, 2 species were legumes while 6 species were forbs. Among the recorded grass species, some were highly desirable, while others were in the categories of intermediate in terms of desirability and less desirable. We identified the dominant and common grass species that included: Arstida adscensionis, Cenchrus ciliarus, Chloris gayana, Chloris roxburghiana, Bothriochloa insculpta, Eragrostis papposa, Heteropogon contorus, Panicum maximum, Indigofer spinosa, Tephrosia pumila, Sporobolus pyrmidalis, Themeda triandra, B. nigropedata, Ocimum basilicum, Amaranthus dubis, Tribulos terrestris and Achyrantes aspera. The chemical composition of herbaceous plants were analyzed for DM, CP, NDF, ADF, ADL and Ash comparing two grazing management systems and three rangeland sites as patch mosaic units. The results of the present analysis showed that the average CP content in the open-grazed areas was significantly (P<0.05) higher than that of the enclosed areas. The upper and middle rangeland sites displayed significantly (P<0.05) higher CP content for the open-grazed areas than the enclosure management across the study areas. The present findings suggest that the DM, NDF, ADF, ADL and Ash contents of herbaceous species was significantly (P<0.05) lower in the open-grazed areas than in the enclosure management.

scholarly journals Dry matter production and chemical composition of Massai grass submitted to nitrogen rates and cutting heights

2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2487
Author(s):  
Giselle Abadia Campos Pereira ◽  
Leni Rodrigues Lima ◽  
Joelson Antônio Silva ◽  
Rosemay Lais Galati ◽  
Joanis Tilemahos Zervoudakis ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Dry Matter ◽  
Block Design ◽  
N Fertilization ◽  
Linear Increase ◽  
Dry Matter Production ◽  
Randomized Block Design ◽  
Matter Production ◽  
N Rates ◽  
Nitrogen Rates

The study was carried out in a greenhouse with a 4X4 factorial arrangement randomized block design in order to evaluate the effects of nitrogen rates (0, 50, 100 and 150 mg dm-3) associated with cutting heights (10, 15, 20 and 25 cm) on dry matter production and the chemical composition of Massai grass. The seeding was done in pots with 11 kg of soil. 10 plants were kept per pot, and there were two cuts every 35 days. Nitrogen fertilization was split between the two cuts, where the first N application occurred after the uniformity cut and the second after the first cut. In each cut the plants were separated and weighed for botanical component evaluation: leaf blade and stem + sheath. After this, the samples were homogenized and analysed for dry matter (DM), crude protein (CP) and neutral detergent fibre (NDF) content. In the first cut, the N fertilization caused a linear increase in DM production of 0.058 g pot-1 per each 1 mg dm-3 of N applied, as well as causing an increase of 0.549% in CP percentage, a 0.0124 pot-1 g increase in CP production and a reduction of 0.055% in NDF. In the second cut, N rates promoted a quadratic effect on DM production. A maximum DM production of 16.48 g pot-1 with 107.27 mg dm-3 of N was observed while CP production content was increased by 0.0092 g pot-1 for each 1 mg dm-3 N applied. In terms of linear responses to DM and PB, as well as the use efficiency calculated for Massai grass, recommended N doses range between 50 and 100 g dm-3.

Effect of calcium, pH and nitrogen on the growth and chemical composition of some tropical and temperate pasture legumes. II.* Chemical composition (calcium, nitrogen, potassium, magnesium, sodium and phosphorus)

1976 ◽  
Vol 27 (5) ◽  
pp. 625 ◽  
Author(s):  
CS Andrew ◽  
AD Johnson
Keyword(s):  
Chemical Composition ◽  
Dry Matter ◽  
Calcium Concentration ◽  
Dry Matter Production ◽  
Magnesium Concentration ◽  
Sand Culture ◽  
Calcium Treatment ◽  
Pasture Legumes ◽  
Low Calcium ◽  
Matter Production

The chemical composition of tops and roots of nodulated and non-nodulated plants of some tropical and temperate pasture legumes grown in sand culture is reported and discussed in relation to nodulation efficiency and dry matter production, and nutrient interaction. In most species, increasing pH raised the nitrogen concentrations in the tops of nodulated plants; calcium treatment had little effect. Increasing the calcium concentration of the nutrient solution from 0.125 to 2.0 mM markedly increased the calcium~ concentration in the tops of all species, but in the roots to only a minor extent. Concentrations in tops differed between species. Concentrations in the tops of modulated plants were increased as a result of increasing pH, particularly at the low calcium treatment and for those species sensitive to low pH (Glycine wightii, Medicago species). Increasing the calcium concentration lowered the magnesium concentration, but the total cation content was not significantly affected. In the tropical species, phosphorus concentrations in the tops were increased by reducing pH at both calcium treatments; values were higher at the low calcium treatment than at the high calcium treatment. Roots accumulated inore phosphorus than the tops. Differences in the response of the species cannot be directly related to their mineral composition. With respect to nodulation and dry matter production, it is considered that the pH is the dominant factor and operates in the nodule initiation phase and in subsequent nitrogen production. _______________ *Part I, Aust. J. Agric. Res., 27: 611 (1976).

scholarly journals Dry matter yield, growth index, chemical composition and digestibility of Marandu grass under nitrogen and organic fertilization

2019 ◽  
Vol 40 (5) ◽  
pp. 1901
Author(s):  
Rafaela Guerra Neves ◽  
Guilherme Santos Freitas ◽  
Bruno Borges Deminicis ◽  
Eduardo de Sá Mendonça ◽  
Anderson Lopes Peçanha ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Humic Substances ◽  
Dry Matter ◽  
Growth Index ◽  
Neutral Detergent Fiber ◽  
Dry Matter Production ◽  
Production Plant ◽  
Brachiaria Brizantha ◽  
Matter Production

A pasture composed of the forage Brachiaria brizantha cv. Marandu, for more than 15 years and never fertilized, with an initial condition of degradation, was fertilized with nitrogen and humic substances, with the purpose Of recovering the vigor and productivity of the pasture. In the two years (December of 2012 to April 2013 and December 2014 to April 2015), analyses were made for dry matter production, plant height, light interception, leaf / stem ratio), chemical composition and digestibility of Brachiaria brizantha cv. Marandu. This was a completely randomized block experimental design, in a 5x4 arrangement, with five doses of nitrogen (0, 50, 100, 200, 400 kg N.ha-1), four doses of humic substances (0, 12.5, 25 and 50%), with 5 replicates. The forage presented lower means of dry matter production in the first year in relation to the second, but there was no difference for the chemical composition and digestibility between the years. There was a significant effect of Nitrogen levels on the production of dry matter, crude protein, silica, neutral detergent fiber (NDF), acid detergent fiber (FDA), and in vitro dry matter digestibility (DVMS). The best response was obtained with 200 kg N.ha-1. The doses of humic substances influenced only reducing the leaf/stem ratio, but there was no effect of doses of humic substances on the other variables studied.

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