Effects of composted feedlot manure on the chemical characteristics of duplex soils in north-eastern Victoria

2002 ◽  
Vol 42 (3) ◽  
pp. 369 ◽  
Author(s):  
W. J. Slattery ◽  
B. Christy ◽  
B. M. Carmody ◽  
B. Gales
Keyword(s):  
Soil Profile ◽  
Agricultural Land ◽  
Agricultural Soils ◽  
Soil Layer ◽  
High Porosity ◽  
Long Term Effects ◽  
Nitrogen And Phosphorus ◽  
Beneficial Effects ◽  
North Eastern

The beef feedlot industry in Australia produces a large amount of solid organic by-product each year that is currently applied to agricultural land as a fertiliser supplement. Manure is known to be a valuable source of organic matter and some plant nutrients, especially nitrogen and phosphorus. In addition, manure contains excessive quantities of cations such as sodium (Na) and potassium (K), which may result in long-term sustainability problems for the soil, particularly when large amounts are applied over short time periods. The aim of this study was to determine the effects of composted beef feedlot manure when applied to agricultural soils. Two sites were selected, one a brown Dermosol and the other a red Kurosol, both in north-eastern Victoria near the Rutherglen Research Institute. Both sites received rates of manure up to 109 t/ha in 1996. In 1997 soil samples were collected and compared with untreated control soils. The Dermosol site was sown to an oat and clover mixture in 1996 and 1997 and the red Kurosol was sown to lupin in 1996 and wheat in 1997. The application of composted bovine manure resulted in a 1% increase in soil organic carbon, an increase in soil pH by 1.5 units, increased levels of magnesium, calcium, nitrogen and K in the surface 10 cm soil layer at both sites and an increase in extractable phosphorus levels in the subsoil. There was no detectable increase in surface Na, although there was a small but significant decrease in Na in the 40–80 cm soil layer. It is suggested that soluble organic compounds, migrating down through the soil profile are able to complex with Na and effectively remove some of this cation from the exchange sites of the clay surfaces. In addition, the high porosity of these soils coupled with the high degree of Na mobility ensures that most of this cation is transported deeper into the soil profile. The beneficial effects of applying composted manure are promising as a means of reducing sodicity although these results will require further validation. In addition, the long-term effects of saturating subsurface soil with Na are also a cause for concern and need to be further investigated.

Long Term Effects of the Latham Presurgical Maxillary Orthopedic Appliance, Including Effects on Tooth Growth

2000 ◽  
Vol 8 (1) ◽  
pp. 15-20 ◽  
Author(s):  
Michel C Samson ◽  
Donald H Lalonde ◽  
Donald Fitzpatrick ◽  
Gerald L Sparkes
Keyword(s):  
Bone Grafting ◽  
Cleft Lip ◽  
Alveolar Bone ◽  
Consistent Difference ◽  
Long Term Effects ◽  
Beneficial Effects ◽  
Alar Base ◽  
Alveolar Bone Grafting ◽  
Base Elevation

Reported beneficial effects of presurgical maxillary orthopedics in cleft lip include reduction of the cleft width, alignment of the maxillary segments, elevation of the alar base on the cleft side, diminished need for alveolar bone grafting and lip closure without tension. Possible adverse effects of presurgical maxillary orthopedics include tooth root damage and inability of periosteoplasty to make bone over the cleft. A series of wide cleft lip patients (n=15) treated with the Latham appliance at the time of lip closure were retrospectively compared with a similar group treated without the Latham appliance. The Latham appliance group (seven unilateral clefts, eight bilateral clefts; mean follow-up 9.5 years; range four to 18 years) was treated between the years 1980 and 1994. None of the 15 patients treated with the appliance had any tooth loss or damage attributable to the pins, and bone formation in the alveolar cleft was observed radiographically in all 13 of the patients who had a periosteoplasty at the time of lip repair, possibly obviating the need for secondary bone grafting. Five of these Latham group patients demonstrated clinical and radiographic evidence of tooth eruption into the periosteoplasty-formed bone. There was no consistent difference in the level of nasal alar base elevation in the two groups.

scholarly journals Short- and Long-Term Effects of Lime and Gypsum Applications on Acid Soils in a Water-Limited Environment: 1. Grain Yield Response and Nutrient Concentration

Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1213 ◽  
Author(s):  
Geoffrey C. Anderson ◽  
Shahab Pathan ◽  
James Easton ◽  
David J. M. Hall ◽  
Rajesh Sharma
Keyword(s):  
Grain Yield ◽  
Soil Layer ◽  
Acid Soils ◽  
Triticum Aestivum L ◽  
Nutrient Concentrations ◽  
Yield Response ◽  
Long Term Effects ◽  
Grain Yields ◽  
Growing Seasons

Surface (0–10 cm) and subsoil (soil layers below 10 cm) acidity and resulting aluminum (Al) toxicity reduce crop grain yields. In South Western Australia (SWA), these constraints affect 14.2 million hectares or 53% of the agricultural area. Both lime (L, CaCO3) and gypsum (G, CaSO4) application can decrease the toxic effect of Al, leading to an increase in crop grain yields. Within the region, it is unclear if G alone or the combined use of L and G has a role in alleviating soil acidity in SWA, due to low sulfate S (SO4–S) sorption properties of the soil. We present results from three experiments located in the eastern wheatbelt of SWA, which examined the short-term (ST, 2 growing seasons), medium-term (MT, 3 growing seasons), and long-term (LT, 7 growing seasons over 10 years) effects of L and G on grain yield and plant nutrient concentrations. Despite the rapid leaching of SO4–S and no self-liming impact, it was profitable to apply G, due to the significant ST grain yield responses. The grain yield response to G developed even following relatively dry years, but declined over time due to SO4–S leaching. At the LT experimental site had received no previous L application, whereas, at the ST and MT sites, L had been applied by the grower over the previous 5–10 years. For the LT site, the most profitable treatment for wheat (Triticum aestivum L.) grain yield, was the combined application of 4 t L ha−1 with 2 t G ha−1. At this site, the 0–10 cm soil pHCaCl2 was 4.6, and AlCaCl2 was greater than 2.5 mg kg−1 in the 10–30 cm soil layer. In contrast, at the ST and MT sites, the pHCaCl2 of 0–10 cm soil layer was ≥5.5; it was only profitable to apply G to the MT site where the soil compaction constraint had been removed by deep ripping. The use of L increases soil pHCaCl2, resulting in the improved availability of anions, phosphorus (P) in the LT and molybdenum (Mo) at all sampling times, but reduced availability of cations zinc (Zn) in the LT and manganese (Mn) at all sampling. The application of G reduced Mo concentrations, due to the high SO4–S content of the soil.

scholarly journals Growth, development and differentiation: a functional food science approach

1998 ◽  
Vol 80 (S1) ◽  
pp. S5-S45 ◽  
Author(s):  
B. Koletzko ◽  
P. J. Aggett ◽  
J. G. Bindels ◽  
P. Bung ◽  
P. Ferré ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Trace Elements ◽  
Growth Factors ◽  
Polyunsaturated Fatty Acids ◽  
Human Milk ◽  
Functional Foods ◽  
Long Term Effects ◽  
Food Ingredients ◽  
Beneficial Effects

AbstractFew other aspects of food supply and metabolism are of greater biological importance than the feeding of mothers during pregnancy and lactation, and of their infants and young children. Nutritional factors during early development not only have short-term effects on growth, body composition and body functions but also exert long-term effects on health, disease and mortality risks in adulthood, as well as development of neural functions and behaviour, a phenomenon called ‘metabolic programming’. The interaction of nutrients and gene expression may form the basis of many of these programming effects and needs to be investigated in more detail. The relation between availability of food ingredients and cell and tissue differentiation and its possible uses for promoting health and development requires further exploration. The course of pregnancy, childbirth and lactation as well as human milk composition and the short- and long-term outcome of the child are influenced by the intake of foods and particularly micronutrients, e.g. polyunsaturated fatty acids, Fe, Zn and I. Folic acid supplementation from before conception through the first weeks of pregnancy can markedly reduce the occurrence of severe embryonic malformations; other potential benefits of modulating nutrient supply on maternal and child health should be further evaluated. The evaluation of dietary effects on child growth requires epidemiological and field studies as well as evaluation of specific cell and tissue growth. Novel substrates, growth factors and conditionally essential nutrients (e.g. growth factors, amino acids, polyunsaturated fatty acids) may be potentially useful as ingredients in functional foods and need to be assessed carefully. Intestinal growth, maturation, and adaptation as well as long-term function may be influenced by food ingredients such as oligosaccharides, gangliosides, high-molecular-mass glycoproteins, bile salt-activated lipase, pre- and probiotics. There are indications for some beneficial effects of functional foods on the developing immune response, for example induced by antioxidant vitamins, trace elements, fatty acids, arginine, nucleotides, and altered antigen contents in infant foods. Peak bone mass at the end of adolescence can be increased by dietary means, which is expected to be of long-term importance for the prevention of osteoporosis at older ages. Future studies should be directed to the combined effects of Ca and other constituents of growing bone, such as P, Mg and Zn, as well as vitamins D and K, and the trace elements F and B. Pregnancy and the first postnatal months are critical time periods for the growth and development of the human nervous system, processes for which adequate substrate supplies are essential. Early diet seems to have long-term effects on sensory and cognitive abilities as well as behaviour. The potential beneficial effects of a balanced supply of nutrients such as I, Fe, Zn and polyunsaturated fatty acids should be further evaluated. Possible long-term effects of early exposure to tastes and flavours on later food choice preferences may have a major impact on public health and need to be further elucidated. The use of biotechnology and recombinant techniques may offer the opportunity to include various bioactive substances in special dietary products, such as human milk proteins, peptides, growth factors, which may have beneficial physiological effects, particularly in infancy and early childhood.

scholarly journals Medium-/Long-Term Effects of a Specific Exercise Protocol Combined with Patient Education on Spine Mobility, Chronic Fatigue, Pain, Aerobic Fitness and Level of Disability in Fibromyalgia

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Erika Giannotti ◽  
Konstantinos Koutsikos ◽  
Maurizia Pigatto ◽  
Maria Elisa Rampudda ◽  
Andrea Doria ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Fibromyalgia Impact Questionnaire ◽  
Control Group ◽  
Positive Trend ◽  
Long Term Effects ◽  
Exercise Protocol ◽  
Beneficial Effects ◽  
Active Range Of Motion ◽  
Spine Mobility

Objective. To propose a rehabilitation protocol able to produce immediate and long-term beneficial effects on level of disability and overall performance in ADLs.Materials and Methods. Forty-one FM patients were randomized to an exercise and educational-behavioral programme group (experimental group, EG = 21) or to a control group (CG = 20). Each subject was evaluated before, at the end (T1), and after 6 months (T6) from the conclusion of the rehabilitation treatment using the Fibromyalgia Impact Questionnaire (FIQ), the visual analogue scale (VAS), the Health Assessment Questionnaire (HAQ), the fatigue severity scale (FSS), the 6-minute walking test (6MWT), tender points count (TPC), and spinal active range of motion. The exercise protocol included 20 sessions consisting in self-awareness, stretching, strengthening, spine flexibility, and aerobic exercises, which patients were subsequently educated to perform at home.Results. The two groups were comparable at baseline. At T1, the EG showed a positive trend in FIQ, VAS, HAQ, and FSS scales and significant improvement in 6MWT and in most spinal active range of motion measurements (Pbetween 0.001 and 0.04). The positive results were maintained at the follow-up.Conclusion. The proposed programme was well tolerated and produced immediate and medium-term beneficial effects improving function and strain endurance. This trial is registered withDRKS00005071on DRKS.

Dynamic phosphorus mass balance modeling of large watersheds: long-term implications of management strategies

2001 ◽  
Vol 43 (5) ◽  
pp. 153-162 ◽  
Author(s):  
E. A. Cassell ◽  
R. L. Kort ◽  
D. W. Meals ◽  
S. G. Aschmann ◽  
J. M. Dorioz ◽  
...  
Keyword(s):  
Mass Balance ◽  
Urban Growth ◽  
Large Scale ◽  
Nutrient Dynamics ◽  
Agricultural Soils ◽  
Management Strategies ◽  
Wastewater Management ◽  
Long Term Effects ◽  
Modeling Process

The principles of mass balance, compartment-flux diagramming, and dynamic simulation modeling are integrated to create computer models that estimate phosphorus (P) export from large-scale watersheds over long-term futures. These Watershed Ecosystem Nutrient Dynamics (WEND) models are applied to a 275,000 ha dairy-documented watershed and a 77,000 ha poultry-dominated watershed in northeastern USA. Model predictions of present-day P export loads are consistent with monitoring data and estimates made using P export coefficients. For both watersheds P import exceeds P export and P is accumulating in the agricultural soils. Agricultural and urban activities are major contributors to P export from both watersheds. Continued urban growth will increase P export over time unless wastewater management is substantially enhanced and/or rates of urban growth are controlled. Agriculture cannot rely solely on the implementation of increasingly stringent conservation practices to reduce long-term P export but mustconsider options that promote P input/output balance. The WEND modeling process is a powerful tool to integrate the diversity of activities in watersheds into a holistic framework. Model outputs are suited to assist managers to explore long-term effects of overall watershed management strategies on P export in comparison to environmental and economic goals.

Long-term effects of N fertilization on cropping and growth of olive trees and on N accumulation in soil profile

2009 ◽  
Vol 31 (4) ◽  
pp. 223-232 ◽  
Author(s):  
R. Fernández-Escobar ◽  
L. Marin ◽  
M.A. Sánchez-Zamora ◽  
J.M. García-Novelo ◽  
C. Molina-Soria ◽  
...  
Keyword(s):  
Soil Profile ◽  
N Fertilization ◽  
Long Term Effects ◽  
N Accumulation ◽  
Olive Trees

scholarly journals Dexamethasone as Adjuvant Therapy to Moxifloxacin Attenuates Valve Destruction in Experimental Aortic Valve Endocarditis Due to Staphylococcus aureus

2007 ◽  
Vol 51 (8) ◽  
pp. 2848-2854 ◽  
Author(s):  
Ioannis Skiadas ◽  
Angelos Pefanis ◽  
Apostolos Papalois ◽  
Aspasia Kyroudi ◽  
Helen Triantafyllidi ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Aortic Valve ◽  
Cardiac Function ◽  
Control Group ◽  
Long Term Effects ◽  
Inflammatory Infiltration ◽  
Beneficial Effects ◽  
Group B ◽  
Group D

ABSTRACT Although the beneficial effects of dexamethasone have frequently been investigated in various serious-infection settings, insufficient data on valve histology and cardiac function for infective endocarditis are available. The efficacy of moxifloxacin for the treatment of experimental aortic valve endocarditis due to methicillin-susceptible Staphylococcus aureus and the long-term effects of dexamethasone were evaluated in the current study. Sixty-eight rabbits were randomly assigned to four groups: A, B, C, and D. Group A consisted of 18 animals and functioned as a control group. Groups B and C consisted of 11 and 23 subjects, respectively, which received moxifloxacin for 5 days in a human-like pharmacokinetic simulation. Group D consisted of 16 animals that were administered moxifloxacin plus dexamethasone (0.25 mg/kg of body weight twice a day intravenously). The group B animals were sacrificed a day after the completion of treatment, and group C and D animals were sacrificed after 12 days in order to monitor any possible relapse and allow microbiological, histopathological, and echocardiographic evaluation of the long-term effects of glucocorticoids. No differences in survival, sterilization rates, or inflammatory infiltration and calcification of valve tissue were observed among the treated groups. However, the degrees of valve damage and collagenization were significantly worse, the fibroblast content was higher, and fractional shortening of the left ventricle fluctuated significantly in group C compared to group D (all groups, P < 0.05). We concluded that dexamethasone treatment for experimental S. aureus endocarditis attenuates valve destruction and preserves overall cardiac function without impeding the efficacy of moxifloxacin.

Soil audit of a long-term phosphate experiment in south-western Victoria: total phosphorus, sulfur, nitrogen, and major cations

2000 ◽  
Vol 51 (6) ◽  
pp. 737 ◽  
Author(s):  
M. R. McCaskill ◽  
J. W. D. Cayley
Keyword(s):  
Soil Profile ◽  
Water Movement ◽  
Soil Layer ◽  
Fertility Treatment ◽  
High Fertility ◽  
Single Superphosphate ◽  
Soil P ◽  
Total Soil ◽  
Western Victoria

A nutrient audit was conducted on a long-term grazed fertiliser experiment at Hamilton in south-western Victoria to determine the fate of applied phosphorus (P) and sulfur (S). Single superphosphate had been applied at rates averaging between 1 and 33 kg P/ha.year since the start of the experiment in 1977. Soil samples were taken in 1994 by coring to a depth of 80 cm, and analysed for total soil nutrient concentration. Most (80%) applied P was in the top 43 cm of the soil profile. A further 6.5% had been transferred to sheep camp areas and 6.5% had been exported as product. It was estimated that <0.4% of applied P left the site in surface water movement. Unaccounted P (6.6%) was probably in the soil, but could not be detected because of the relatively wide confidence margin for total soil P. Only 31% of applied S was detected in the top 43 cm, 3.6% had been transferred to sheep camps, and 4.9% exported in product. Unaccounted S (60%) had probably moved deeper into the soil where it could not be detected from background levels of total soil S. Bulk density in the 0–5-cm layer increased by 1% for each additional ewe per ha, but decreased by up to 0.4% for each kg/ha.year of P fertiliser. Soil nitrogen (N) accumulated at 46 kg N/ha.year at the highest P application rate.Differences in total potassium (K) between low and high fertility treatments indicated that 20 kg K/ha.year had moved out of the 5–19-cm soil layer of the high fertility treatment. This was attributed to competition for exchange sites from calcium (Ca) in the superphosphate. It was concluded that fertilisers with a higher P : S ratio and a lower Ca content than superphosphate are more appropriate for the basalt-derived duplex soils because they would reduce problems associated with displacement of K in the soil profile.

Effects of opioids and psychoactive drugs on blood lipid and glucose indices; a systematic review of population-based evidences

2021 ◽  
Vol 21 ◽  
Author(s):  
Azam Rezaei ◽  
Maryam Rezaei
Keyword(s):  
Blood Glucose ◽  
Lipid Profile ◽  
Blood Lipid ◽  
Population Based ◽  
Psychoactive Drugs ◽  
Common Belief ◽  
Long Term Effects ◽  
Beneficial Effects ◽  
Reduce Blood Glucose

Background: Based on a common belief among people, narcotic substances and psychoactive drugs may help to reduce blood glucose and lipid profile leading to reduced risk of cardiovascular diseases. This hypothesis has been verified in several studies; however, there is no conclusive agreement on the reducing effects of opium and other opioid derivatives on blood glucose and lipids. In the present review, we collected all related literature to evaluate the effects of opioids and psychoactive drugs abuse in altering blood glucose and lipid profile, and discuss their long-term effects. Methods: A systematic literature search was performed in January 2021 using “lipid profile”, “glucose”, and “opium” including all their equivalents, main derivatives and similar terms. The data were then extracted and reported qualitatively. Results: Overall, 46 articles with 37407 participants were included after several step–by-step procedures of article selection. Findings of this study suggested that opioids may reduce blood glucose and low-density lipoproteins, while increasing triglyceride. However, these effects are temporary, and long-term substance abuse exacerbates glucose and lipid-associated diseases such as diabetes and atherosclerosis. Conclusion: Although there are many confounding factors that may affect the results of the included literature; however, based on the findings of these studies, the long-term beneficial effects of opioids on lipid profile and blood glucose cannot be accepted.

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