scholarly journals Effects of Biogas Slurry on Fruit Economic Traits and Soil Nutrients of Camellia oleifera Abel

2018 ◽  
Author(s):  
Lu You ◽  
Shuqin Yu ◽  
Huiyun Liu ◽  
Chutian Wang ◽  
Zengliang Zhou ◽  
...  
Keyword(s):  
Organic Matter ◽  
Fatty Acid ◽  
Soil Nutrients ◽  
Acid Content ◽  
Rhizosphere Soil ◽  
Fatty Acid Content ◽  
Application Rate ◽  
Camellia Oleifera ◽  
Biogas Slurry ◽  
Economic Traits

AbstractSoil nutrients play a principal role in Camellia oleifera Abel (oil-seed camellia) production. Camellia oleifera absorbs nutrients from surrounding soils and its production is highly influenced by nutrients or fertilization. In this study, we investigated the effects of biogas slurry applications on soil nutrients and economic traits of C. oleifera fruits. Five different amounts of fertilizing biogas slurry (0, 10, 20, 30, or 40 kg/plant/year from three applications per year) were applied to C. oleifera plants in 2015 and 2016. Rhizosphere soil nutrients and C. oleifera fruit economic traits (yield, seed rate, and oil yield)were measured. Fertilization with biogas slurryincreasedsoil organic matter, available nitrogen (N), phosphorus (P), and potassium (K) in both 2015 and 2016. Increases in soil available N, P, and Kwere largest at the highest slurry application rate and second largest at the second highest application rate. Fruit economic traits were maximized at the two highest application rates. Oil yield was correlated withsoil available P in 2015 and 2016, and soil organic matter in 2015. Fertilization with biogas slurry decreased saturated fatty acid content in fruit but had no effect on unsaturated fatty acid content. In conclusion, fertilization with biogas slurry increases rhizosphere soil nutrients and fruit economic traits of C. oleifera with the rates of at least 30 kg/plant/year having the most positive effects.

scholarly journals Sludge char-to-fuel approaches based on the hydrothermal fueling IV: fermentation

2021 ◽  
Author(s):  
Jinyi Qin ◽  
Rui Zhang ◽  
Ruiwen Yang ◽  
Jiao Fang ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Amino Acids ◽  
Fatty Acids ◽  
Organic Matter ◽  
Fatty Acid ◽  
Sewage Sludge ◽  
Acid Content ◽  
Saturated Fatty Acids ◽  
Fatty Acid Content ◽  
Heating Value ◽  
Cyclic Amino Acids

Abstract Sewage sludge was subjected to hydrothermal fueling (HTF) (330 °C for 40 min), obtaining hydrochar at 13.5 MJ kg−1. The higher heating value (HHV) of the raw sludge was related to its fatty acid content. The results showed that although the higher heating value (HHV) of the raw sludge was related to its fatty acid content, with the intensification of HTF, the increase in aliphatic/cyclic amino acids determined the production of HHV in the hydrochar. In order to increase the content of fatty acids and amino acids, the sludge was fermented. However, the Bacteroidetes consumed the organic matter too early, which was detrimental to the production of HHV. Therefore, appropriate sludge fermentation is recommended to restrict excessive Bacteroidetes proliferation, decompose lipids to saturated fatty acids, and convert proteins to aliphatic/cyclic amino acids to increase the efficiency of converting sludge to fuel.

scholarly journals Effects of biogas slurry fertilization on fruit economic traits and soil nutrients of Camellia oleifera Abel

PLoS ONE ◽  
2019 ◽  
Vol 14 (5) ◽  
pp. e0208289 ◽  
Author(s):  
Lu You ◽  
Shuqin Yu ◽  
Huiyun Liu ◽  
Chutian Wang ◽  
Zengliang Zhou ◽  
...  
Keyword(s):  
Soil Nutrients ◽  
Camellia Oleifera ◽  
Biogas Slurry ◽  
Economic Traits

scholarly journals Comparison of fatty acid content in Camellia oleifera (L.) Kuntze oil and olive oil by GC

2015 ◽  
Vol 44 (1) ◽  
pp. 155-157
Author(s):  
Chen Guo-Chen ◽  
Ye Hang ◽  
Wang Dong-Xue ◽  
Zhang Nai-Yan ◽  
Wei Wei
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Olive Oil ◽  
Human Health ◽  
Acid Content ◽  
Unsaturated Fatty Acids ◽  
Fatty Acid Content ◽  
Camellia Oleifera

The comparison of fatty acid content in Camellia oleifera (L.) Kuntze oil and olive oil was done by GC. C. oleifera oil contained more C18:1n9c, C18:2n6c, C20:1 and C22:1n9 than olive oil. Olive oil did not contain C21:0 and C24:1 but more C8:0, C16:0, C16:1, C18:0, C18:3n6, C18:3n3, C20:2, C22:0, C23:0 and C24:0 than C. oleifera oil, C. oleifera oil did not contain C20:2. C. oleifera oil and olive oil are beneficial for human health for their unsaturated fatty acids content and C. oleifera oil is healthy than olive oil. DOI: http://dx.doi.org/10.3329/bjb.v44i1.22741 Bangladesh J. Bot. 44(1): 155-157, 2015 (March)

scholarly journals Impacts of Manures and Manure-Based Composts on Root Lesion Nematodes and Verticillium dahliae in Michigan Potatoes

2020 ◽  
Vol 110 (6) ◽  
pp. 1226-1234
Author(s):  
Emilie Cole ◽  
Jian Pu ◽  
Henry Chung ◽  
Marisol Quintanilla
Keyword(s):  
Fatty Acid ◽  
Verticillium Dahliae ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Poultry Manure ◽  
Application Rate ◽  
Nematode Control ◽  
Lesion Nematodes ◽  
Soil Fumigants ◽  
Root Lesion Nematodes

The interaction of the root lesion nematode Pratylenchus penetrans and the fungal plant pathogen Verticillium dahliae causes potato early die (PED) complex, which induces premature vine senescence and dramatically reduces yield in potatoes. Management of PED is often achieved through the use of soil fumigants and nematicides, but their adverse effects on soil, human and environmental health, and strict regulations worldwide require alternative control tactics. In this study, we investigated the effects of multiple composts and manures on nematode mortality and PED. In lab assays, root lesion nematodes were exposed to poultry manure, layer ash blend, Dairy Doo, or wood ash for 7 days at rates of 0, 0.1, 1, 10, and 20% by volume of product and assessed for nematode survivorship. Additionally, these products were evaluated for volatile fatty acid content to determine if fatty acid content affects nematode control. In a field trial, the composts and manures were evaluated at two different rates, high (11.2 t/ha) or low (2.8 t/ha), and populations of P. penetrans and V. dahliae were quantified. Our results show that a 1% application rate of poultry manure and layer ash blend provided the greatest nematode control in lab assays with 24.5 and 38.2% reduction, respectively, with greater control at higher rates. In the field, plots treated with poultry manure had significantly higher potato yields and significantly fewer nematodes than control plots. Taken together, our results suggest that poultry manure could be a promising amendment to control PED.

Interaction of lipid supply and carbohydrates in the diet of sheep with digestibility and ruminal digestion

1991 ◽  
Vol 116 (3) ◽  
pp. 437-445 ◽  
Author(s):  
Y. Elmeddah ◽  
M. Doreau ◽  
B. Michalet-Doreau
Keyword(s):  
Cell Wall ◽  
Organic Matter ◽  
Fatty Acid ◽  
Acid Content ◽  
Dry Matter ◽  
Volatile Fatty Acids ◽  
Fatty Acid Content ◽  
Maize Silage ◽  
Cell Wall Digestibility ◽  
In Sacco

SUMMARYTwo groups of nine wethers, three of which were fitted with rumen cannulas, were used in a digestion trial at the INRA centre in Theix, France, in 1988. Group 1 received 65% maize silage and 35% concentrates; group 2 received 65% hay and 35% concentrates. Concentrates were based on either cereals rich in starch, or by-products rich in fibre and were given either alone or supplemented with lipids as calcium soaps. The fatty acid content of lipid-supplemented diets wasc.9·5 and 8·5% of dry matter, of which 85 and 89% was provided by calcium soaps, for maize silage and hay diets, respectively. For each group, the four diets were tested in four successive periods from January to June 1988.Total digestibility of dry and organic matter, acid detergent fibre (ADF) and neutral detergent fibre (NDF) was measured in six wethers of each group by total faeces collection. On cannulated wethers, volatile fatty acid content and composition, pH and NH3-N in rumen liquor were determined four times a day;in saccodegradability of dry matter, ADF and NDF of the forage eaten by the wethers was estimated by the kinetics of incubation in the rumen.In vivoandin saccoresults showed that dry matter and organic matter digestibilities were not modified by the nature of concentrates. Cell wall digestibility was higher for fibre concentrates than for starchy concentrates, by 4·1 and 6·2 percentage units for NDF in maize silage and hay groups, respectively. Volatile fatty acids (VFA) and ammonia concentrations were higher and pH was lower with the maize silage than with the hay diet.Lipid supply slightly increased cell wall digestibility in the group fed maize silage by 7·5 and 2·0 percentage units for starch and fibre concentrates, respectively. This surprising increase was related to an improvement inin saccodegradability. In all diets, lipid supply increased pH, but variations in VFA concentration and pattern were low. Interactions between the nature of concentrate and lipid supply were moderate, but were higher in the group fed maize silage than in the group fed hay, especially for total digestibility.

Effect of light intensity on the ultrastructure of the filamentous cyanobacterium, Anabaena variabilis

1988 ◽  
Vol 46 ◽  
pp. 300-301
Author(s):  
C. S. Bricker ◽  
S. R. Barnum ◽  
B. Huang ◽  
J. G. Jaworskl
Keyword(s):  
Fatty Acid ◽  
Light Intensity ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Anabaena Variabilis ◽  
Chloroplast Envelope ◽  
Major Constituent ◽  
Filamentous Cyanobacterium ◽  
Photosynthetic Membrane ◽  
Effect Of Light

Cyanobacteria are Gram negative prokaryotes that are capable of oxygenic photosynthesis. Although there are many similarities between eukaryotes and cyanobacteria in electron transfer and phosphorylation during photosynthesis, there are two features of the photosynthetic apparatus in cyanobacteria which distinguishes them from plants. Cyanobacteria contain phycobiliproteins organized in phycobilisomes on the surface of photosynthetic membrane. Another difference is in the organization of the photosynthetic membranes. Instead of stacked thylakolds within a chloroplast envelope membrane, as seen In eukaryotes, IntracytopIasmlc membranes generally are arranged in three to six concentric layers. Environmental factors such as temperature, nutrition and light fluency can significantly affect the physiology and morphology of cells. The effect of light Intensity shifts on the ultrastructure of Internal membrane in Anabaena variabilis grown under controlled environmental conditions was examined. Since a major constituent of cyanobacterial thylakolds are lipids, the fatty acid content also was measured and correlated with uItrastructural changes. The regulation of fatty acid synthesis in cyanobacteria ultimately can be studied if the fatty acid content can be manipulated.

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