Effect of foliar fertilization with magnesium sulfate and supplemental L-ascorbic acid on dry matter yield and chemical composition of cv. Egida timothy grass

2017 ◽  
Author(s):  
Adam Radkowski ◽  
Karol Wolski ◽  
Adam Radkowski ◽  
Iwona Radkowska ◽  
Marcin Rapacz
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Magnesium Sulfate ◽  
Dry Matter ◽  
Dry Matter Yield ◽  
Foliar Fertilization ◽  
Timothy Grass

scholarly journals Effects of fertilizer type and harvesting age on species composition, yield and chemical composition of natural pasture in the highlands of Ethiopia

2020 ◽  
Vol 21 (11) ◽  
Author(s):  
Shiferaw Yalew ◽  
Bimrew Asmare ◽  
Yeshambel Mekuriaw
Keyword(s):  
Chemical Composition ◽  
Species Composition ◽  
Dry Matter ◽  
Block Design ◽  
Relative Proportion ◽  
Sampling Site ◽  
Neutral Detergent Fiber ◽  
Dry Matter Yield ◽  
Natural Pasture ◽  
Forage Species

Abstract. Yalew S, Asmare B, Mekuriaw Y. 2020. Effects of fertilizer type and harvesting age on species composition, yield, and chemical composition of natural pasture in the highlands of Ethiopia. Biodiversitas 21: 4999-5007. The experiment was conducted to evaluate the effects of fertilizer type and harvesting age on species composition, yield, and chemical composition of natural pasture in the highlands of Ethiopia. The experiment was laid out in randomized complete block design with factorial arrangement of two factors (fertilizer and harvesting age) with five replications. The data collected from the current study were forage species composition, dry matter yield, and chemical composition of natural pasture at different ages of harvesting. Forage species composition was determined by taking representative samples and identifying species from each sampling site. The samples of natural pasture were harvested at 90 and 120 days of age, weighed, dried, and then ground after that subsamples were taken for analyses of dry matter (DM), crude protein (CP), ash, acid detergent fiber (ADF), neutral detergent fiber (NDF) and acid detergent lignin (ADL). All the collected data were subjected to GLM ANOVA procedures of SAS version 9.0. The result indicated that all species composition and dry matter yield were significantly affected (P<0.001) by fertilizer type and harvesting ages. Higher forbs (0.66%) were found in control plot at 90 days of harvesting age. Natural pasture harvested at 120 days of harvesting and urea fertilizer application results the highest dry matter yield (DMY) (8.26 t/ha) while the lowest level (3.20 t/ha) from unfertilized plot at 90 and 120 days of harvesting. The relative proportion of legumes in the natural pasture attained its climax stage at 90 days while grass attained at 120 days of harvesting. The highest mean DMY (6.24 tone/ha) was obtained at 120 days of harvesting and the lowest (4.71 ton/ha) at 90 days of harvesting. Among the chemical composition parameters, DM, ash and CP were significantly affected (P<0.001) by both fertilizer type and harvesting age. The content of CP and ash were increased with manure fertilizer at early harvest age and were decreased with delayed harvest age. The application of fertilizer type did not significantly affect (P>0.05) NDF content of the natural pasture rather affected by stage of harvesting (P<0.001). Regardless of DM yield, better quality pasture was recorded for early (90 days) harvesting age and use of compost recommended for future natural pasture improvements as use of chemical fertilizer is relatively expensive for the majority of smallholder farmers in the highlands.

scholarly journals Comparison of Chemical Composition and Colour Parameters of Different Mentha Genus Plants Grown under Organic Conditions

2018 ◽  
Vol 47 (1) ◽  
pp. 92-99 ◽  
Author(s):  
Živilė TARASEVIČIENĖ ◽  
Aloyzas VELIČKA ◽  
Elvyra JARIENĖ ◽  
Aurelija PAULAUSKIENĖ ◽  
Anna KIELTYKA-DADASIEWICZ ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Essential Oils ◽  
Dry Matter ◽  
Waste Utilization ◽  
Soluble Solids ◽  
Mentha Piperita ◽  
Crude Fibre ◽  
Mentha Spicata ◽  
Chemical Content

Mentha species are one of the world oldest and popular herbs, that are used in cosmetic and food industry, as well as tea for their medical properties. Due the consumer perception of ecological production and aromatic plants production waste utilization the objective of this work was to determine differences in chemical content and colour among different varieties and parts of Mentha plants ecologically grown in Lithuania. In mint leaves there were determined: content of essential oils, dry matter, soluble solids, ascorbic acid, crude fibre, crude ash, photosynthetic pigments and colour CIE L*a*b* parameters. In the case of mint plants stems, the same analyses were performed except ascorbic acid, soluble solids and colour. The highest content of essential oils were found in Mentha spicata L. ‘Moroccan’ and Mentha piperita L. ‘Glacialis’ leaves, while the least in Mentha suaveolens Ehrh. ‘Variegata’. The content of essential oils in the stems was minor and did not depend on mint variety. Plant parts differ significantly in respect of chemical composition. Amount of dry matter in mint leaves and stems was very similar, while crude ash in the leaves was twice higher than in the stems. Content of crude fibre in the leaves did not differ significantly in all investigated varieties and was 3.6 times lower comparing with the stems. Average ratio of chlorophyll a to b in the leaves was equal to 2.78, while in stems equal to 2.83. The lightest was Mentha suaveolens ‘Variegata’, the darkest Mentha spicata L. ‘Moroccan’ and the greenest Mentha piperita L. ‘Swiss’ leaves. Mints and their parts differ in chemical content and can have widespread usage not only for production of high-value natural products but in addition as alternative fibrous biomass plants.

scholarly journals Influence of Catch Crops on Yield and Chemical Composition of Winter Garlic Grown for Bunch Harvesting

Agriculture ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 134
Author(s):  
Andrzej Sałata ◽  
Gaetano Pandino ◽  
Halina Buczkowska ◽  
Sara Lombardo
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Essential Oil ◽  
Phenolic Acids ◽  
Dry Matter ◽  
Reducing Sugars ◽  
Plant Litter ◽  
Crude Fiber ◽  
Catch Crops ◽  
Edible Part

The cultivation of catch crops left on the surface of the field in the form of mulch promotes sustainable farming practices, while protecting the biodiversity of agricultural landscape. The paper presents results of research from 2013–2016, aimed at determining the usefulness of catch crops of millet, buckwheat, white mustard, bird’s-foot and Egyptian clover for soil mulching in winter garlic cultivation. The effect of soil litter on the amount of garlic crop in cultivation for bunch harvest and nutritional value determined by chemical composition of edible parts was determined. In the edible part of garlic, the content of dry matter, total and reducing sugars, L-ascorbic acid, total ash, crude fiber, phenolic acids and essential oil was evaluated. The control consisted of plots without mulch plants. In the cultivation of garlic under organic mulch, there was no decrease in commercial yield and no negative competitive effect on yielding. Garlic plants cultivated with mulch plants were characterized by increased height and developed more leaves. The catch crops used in the form of mulch did not affect the dry matter and total ash content in garlic bulbs. In the cultivation with plant litter, the concentration of phenolic acids and essential oil in the leaves was higher and the content of crude fiber was lower, compared to the cultivation without litter. Biomass from catch crops from clover and mustard increased the content of L-ascorbic acid, at the same time reducing the content of total and reducing sugars in the edible part of garlic, except for mulch plants of the bean family. The chemical composition of garlic was affected by different thermal and precipitation conditions in the years of research. In 2016, the year with the highest total rainfall, plants accumulated more dry matter, L-ascorbic acid as well as total and reducing sugars than in 2014 and 2015, years with less rainfall. Our research indicates that there are prospects for practical application of catch crops in the form of mulch for garlic cultivation to enhance the level of nutrients, without compromising the yield.

scholarly journals The Effect of Application of Ethephon to Processing Tomato Plants on the Chemical Composition of Fruits

2016 ◽  
Vol 44 (2) ◽  
pp. 484-490
Author(s):  
Maria GAWEDA ◽  
Elzbieta JEDRSZCZYK ◽  
Barbara SKOWERA ◽  
Renata JEDRZEJCZAK ◽  
Krystyna SZYMCZYK
Keyword(s):  
Ascorbic Acid ◽  
Chemical Composition ◽  
Dry Matter ◽  
Soluble Sugars ◽  
Ascorbic Acid Content ◽  
Weather Conditions ◽  
Weather Impact ◽  
Processing Tomato ◽  
Temperature And Precipitation ◽  
Meteorological Elements

Ethephon is used to accelerate fruit ripening on plantations with well-developed plants which have formed a large quantity of fruits. The aim of the study was to determine the effect of ethephon on the chemical composition of the fruits of seven cultivars of processing tomato (‘Rumba’, ‘Hubal’, ‘Sokal’ F1, ‘Mieszko’ F1, ‘Polset’ F1, ‘Hysioux’ F1 and ‘AF1120’ F1), applied to the plants when most of the fruits had reached the mature-green stage. The study was conducted during three consecutiveyears, characterized by different weather conditions. Meteorological elements, i.e. air temperature and precipitation totals, were monitored in the experimental station in Mydlniki, near Krakow, Poland. Ethephon was found to have a beneficial effect on the content of extract and soluble sugars of the harvested tomatoes and on their acidity. Dry matter and lycopene levels were not dependent on the use of this compound, while the ascorbic acid content was reduced by the procedure. The chemicalcomposition of the tomato fruits differed significantly in consecutive years of the study, which confirmed the weather impact on fruit quality and on the varied responses of different cultivars to use of ethephon. The tested cultivars were also compared in terms of their suitability for processing. The ‘Hubal’ cultivar had the highest content of dry matter, extract, soluble sugars of all the cultivars tested. The highest level of lycopene was noted for the tomatoes of the ‘Rumba’ and ‘Sokal’ F1 cultivar, ascorbic acid of the ‘Rumba’ and the highest acidity for ‘AF 1120’ F1.

Chemical Composition and Dry Matter Yield of Cowpea(Vigna unguiculate L Walp)Haulms as Fodder for Ruminants

2016 ◽  
Vol 56 (1-2) ◽  
pp. 77-83
Author(s):  
Karabo Mohatla ◽  
Kwena Mokoboki ◽  
Nthabiseng Sebola ◽  
Mashilo Jacob
Keyword(s):  
Chemical Composition ◽  
Dry Matter ◽  
Dry Matter Yield

scholarly journals The Effect Of Season On The Yield And Nutritive Value Of Gliricidia Sepium And Leucaena Leucocephala

2021 ◽  
Vol 20 ◽  
pp. 96-103
Author(s):  
S. M. Odeyinka ◽  
A. A. Ademosun
Keyword(s):  
Organic Matter ◽  
Chemical Composition ◽  
Dry Matter ◽  
Nutritive Value ◽  
Gliricidia Sepium ◽  
Dry Matter Yield ◽  
Significant Difference ◽  
Acid Detergent Fibre ◽  
Browse Species

Four plots of Gliricidia and two plots of Leucuena were harvested at three monthly intervals to monitor dry matter yield, chemical composition and in vitro organic matter digestibility. The plants had been established (Gliricidia from stakes, Leucaena from seeds) and were spaced 1m apart on rows and 1m between rows. Each plot size was 6m x 6m.  There was no significant difference (P>0.05) in the dry matter yield of the two browse species. Season did not have significant (P>0.05) effect on the dry matter yield of Leucaena but had on that of Gliricidia (P<0.01). The early dry harvest produced the lowest yield for both Gliricidia and Leucaena and these were significantly lower than the yield from other harvests.  Season had significant effect (P<0.01) on the chemical composition of Leucaena except on the percent Acid Detergent Fibre (ADF) and lignin but season had no effect on the organic matter digestibilities of the two browse species: Leucaena was higher in nutritive value than Gliricidia.

scholarly journals Chemical composition, biological potentials and antimicrobial activity of wild and cultivated blackberries

2018 ◽  
pp. 65-79
Author(s):  
Miodrag Jazic ◽  
Jelena Vulic ◽  
Zoran Kukric ◽  
Ljiljana Topalic-Trivunovic ◽  
Aleksandar Savic
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Ascorbic Acid ◽  
Chemical Composition ◽  
Dry Matter ◽  
Chemical Compositions ◽  
Antibacterial And Antifungal Activity ◽  
Thornless Blackberry ◽  
Antibacterial And Antifungal

The aim of this study was to compare the chemical compositions and biological potentials (antioxidant potentials, ?-glucosidase test and antimicrobial activity) of wild and cultivated blackberry varieties from two different locations. The chemical compositions were evaluated in fresh samples, while the biological potentials were measured in dry blackberry extracts. The highest dry matter (15.73 g/100 g fw) was obtained for wild blackberry from Verici (Bw2). The significantly higher content of sugars (6.07 g/100 g fw) and ascorbic acid (21.36 g/100 g dw) was found in Chester Thornless blackberry (Bc1) comparing to other samples. The wild blackberry from Javorani (Bw1) showed the highest amount of polyphenols, as well as antioxidant potentials on DPPH (184.26 mmol Trolox/kg dw), ABTS (340.26 mmol Trolox/kg dw) and OH (944.03 mmol BHT/kg dw) radicals. The antihyperglycemic potentials of the extracts were determined by the ?-glucosidase test. The cultivated blackberry Cacanka Bestrna (Bc2) showed the stronger inhibition of ?-glucosidase enzyme (?-GIP = 50.69 %) than other varieties (p<0.05). Wild blackberry extracts showed higher antibacterial and antifungal activity towards Staphylococcus aureus, Escherichia coli, and Aspergillus niger. The results presented in this study indicated the differences between wild and cultivated blackberry varieties, as well as mutual differences in chemical composition, polyphenol contents, biological potentials, along with the antimicrobial activity of wild and cultivated blackberry varieties from two different locations in Bosnia and Herzegovina.

Sign in / Sign up

Export Citation Format

Share Document