Influence of soil PH and fertilization on the dry matter production, chemical composition and digestibility of perennial grasses :II panicum maximumJACQ1

1986 ◽  
Vol 3 (3) ◽  
pp. 109-112 ◽  
Author(s):  
L G Du Pisani ◽  
W L J Van Rensburg ◽  
D P J Opperman
Keyword(s):  
Chemical Composition ◽  
Soil Ph ◽  
Dry Matter ◽  
Perennial Grasses ◽  
Dry Matter Production ◽  
Matter Production

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 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

Field-based nutritional response evaluation of the intolerant white lupin (Lupinus albus) cultivar Lucyanne to a lime-amended soil

2004 ◽  
Vol 142 (2) ◽  
pp. 153-161 ◽  
Author(s):  
S. J. KERLEY ◽  
I. F. SHIELD ◽  
T. SCOTT ◽  
H. STEVENSON
Keyword(s):  
Soil Ph ◽  
Dry Matter ◽  
Field Experiments ◽  
Lupinus Albus ◽  
Dry Matter Production ◽  
White Lupin ◽  
Alkaline Ph ◽  
Neutral Ph ◽  
Matter Production ◽  
Amended Soil

Two field experiments examined the nutritional responses of the white lupin (Lupinus albus L.) agronomic cultivar Lucyanne to lime-amended soil. In the first, plots and boundaries of a pre-existing lime-rate experiment were sampled in 1993. The maximum shoot dry matter production occurred between soil pH 4·9 and 7·2. Whole-shoot Al concentrations increased below soil pH 4·9, and plants died at pH 4·4. Although dry matter production declined in soil above pH 7·2, no chlorosis or plant death was seen. Only the whole-shoot soluble Ca concentration changed from neutral to alkaline pH soil: it was greatest when grown in the alkaline-pH soil. In the second experiment, plants were grown in neutral pH or limed soil in 2000. Shoots were divided into specific tissue types and analysed for Fe III and Fe II, as well as soluble and insoluble Ca fractions. When sampled in April after over-wintering, the higher Ca concentration in the limed compared with neutral-pH soil-grown plants was due mainly to insoluble Ca. No plants were chlorotic and no differences between the treatments in the concentrations of either form of Fe were found. In June no plants were chlorotic, however the concentrations of both total and soluble Ca fractions were greater in the limed than the neutral-pH soil-grown plants, and there was more stem Fe III and less leaf Fe II in these plants. The present study shows that the cultivar Lucyanne is not a reliable crop plant above pH 7·2, and the loss of shoot dry matter can be attributed to nutritional responses at a sub-chlorotic level of stress.

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.

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