scholarly journals Influence of High Phosphorus Levels in Caged Layer Diets

1965 ◽  
Vol 44 (5) ◽  
pp. 1249-1253 ◽  
Author(s):  
R.H. Harms ◽  
B.L. Damron ◽  
P.W. Waldroup
Keyword(s):  
High Phosphorus ◽  
Phosphorus Levels

MO775CONTROL OF BONE DISEASE ASSOCIATED WITH CHRONIC KIDNEY DISEASE AS A PREDICTOR OF PRIMARY PERMEABILITY AFTER THE CREATION OF THE VASCULAR ACCESS

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Luis Guillermo Piccone Saponara ◽  
Maria Paz Castro Fernández ◽  
Nancy Giovanna Uribe Heredia ◽  
Agustin Carreno ◽  
Sara Anaya Fernandez ◽  
...  
Keyword(s):  
Antiplatelet Therapy ◽  
Vascular Access ◽  
Statistical Significance ◽  
Univariate Analysis ◽  
Primary Patency ◽  
Categorical Variables ◽  
Cross Sectional ◽  
High Phosphorus ◽  
The Creation ◽  
Phosphorus Levels

Abstract Background and Aims Clinical practice guidelines recommend an arteriovenous fistula (AVF) as the preferred vascular access for hemodialysis. Patency of the arteriovenous access is important for effective hemodialysis. However, maintaining the patency of the AVF remains a challenge. We determined those independent prognostic factors for the patency of the AVF at the time of its creation. Method Cross-sectional study; We include all AVFs performed at the HGUCR in the last 2 decades. Demographic variables (age, sex), etiology of CKD and associated comorbidity were collected. We determine the factors involved in the primary patency of AVFs. Statistical analysis with SPSS 25.0. Categorical variables are expressed as percentages and are compared using the Chi2 test. Quantitative variables are expressed as mean ± standard deviation and the Mann Whitney Student-T/U was used to compare them. Statistical significance for a value of p <0.05. Results 622 AVFs performed in 482 patients were reviewed. 86.8% were autologous. The mean age was 65.4±14 years; 66.6% were male. The most frequent etiologies of CKD were diabetic nephropathy (30.2%), unknown (18%), and glomerulonephritis (16.6%). 91.2% had arterial hypertension (HBP) and diabetes mellitus (DM) 47.9%. 48.7% received antiplatelet therapy and 15.6% anticoagulation prior to the creation of the AVF. 27% presented primary failure. The univariate analysis showed statistical significance for the qualitative variables HTA (p=0.002), treatment with statins (p<0.01) and antiplatelet (p<0.01), and for the quantitative variables fibrinogen (p=0.048), serum phosphorus (p=0.001), CRP (p=0.004), triglycerides (p=0.05), ferritin (p=0.006) and age (p=0.05). When performing a multivariate analysis using logistic regression, HTA (OR: 0.46 95% CI 0.22-0.95 p = 0.036), high phosphorus levels (OR: 1.22 95% CI 1.08-1, 49 p = 0.004) and statin treatment (OR: 0.58 95% CI 0.36-0.96 p = 0.004) are predictors of primary VA failure. Conclusion In our study, HTA and antiplatelet therapy prior to the creation of the VA behave as protective factors for primary failure, with high phosphorus levels being an independent factor for primary failure of AVFs.

scholarly journals Evaluation of Transplant Fertility of Short-day Onions in Southeast Georgia

HortScience ◽  
2002 ◽  
Vol 37 (4) ◽  
pp. 651-655
Author(s):  
George E. Boyhan ◽  
Reid L. Torrance ◽  
David E. Curry ◽  
Pamela M. Lewis ◽  
Donna O. Linton ◽  
...  
Keyword(s):  
Plant Height ◽  
Linear Increase ◽  
Residual Phosphorus ◽  
High Phosphorus ◽  
Phosphorus Fertilizers ◽  
Linear Effects ◽  
Plant Stand ◽  
Tissue Nitrogen ◽  
Phosphorus Levels ◽  
Tissue Phosphorus

Preplant levels of 5N-4.4P-12.4K (-5S or -9S) and sidedress applications of CaNO3 were evaluated in onion (Allium cepa L.). In addition, high phosphorus fertilizers 18N-20.1P-0K (diammonium phosphate) and liquid 10N-14.8P-0K were evaluated on sites with and without high residual phosphorus levels as well as their interaction with onion cultivars. Sidedress applications of CaNO3 had a significant effect on plant height and an interaction with preplant 5N-4.4P-12.4K fertilizer. There was a linear increase in plant height with increasing applications of 5N-4.4P-12.4K from 0 to 1569 kg·ha-1 with the CaNO3 applications. Neither 5N-4.4P-12.4K nor CaNO3 applications affected stand count. 5N-4.4P-12.4K fertilizer had significant linear effects on tissue potassium and sulfur. Tissue nitrogen and calcium increased with CaNO3 applications while phosphorus, potassium, and sulfur decreased. CaNO3 also had a positive effect on suitability for transplanting. There was an interaction effect between 5N-4.4P-12.4K and CaNO3 for tissue phosphorus levels. There was a linear decrease in tissue phosphorus levels with increasing amounts of 5N-4.4P-12.4K fertilizer with the sidedress CaNO3 treatments. High phosphorus fertilizers applied directly after seeding had no effect on plant stand or plant height either on soils with or without high residual phosphorus in 1998. In 1999, 10N-14.8P-0K fertilizer had a significant effect on plant height while 18N-20.1P-0K did not. Based on this study, we conclude that additional applications of high phosphorus fertilizers applied post seeding are not required due to the relatively warm conditions found in southeast Georgia in September. There were differences between cultivars, but cultivar× high phosphorus fertilizer interactions were nonsignificant.

Nodule and Plant Development in Stylosanthes humilis H.B.K.: Symbiotic Response to Phosphorus and Sulphur

1974 ◽  
Vol 22 (1) ◽  
pp. 45 ◽  
Author(s):  
CT Gates
Keyword(s):  
Soil Phosphorus ◽  
Effective Strain ◽  
Dry Weight ◽  
Nodule Development ◽  
Nitrogen And Phosphorus ◽  
Relative Growth Rates ◽  
High Phosphorus ◽  
Stylosanthes Humilis ◽  
Low Phosphorus ◽  
Phosphorus Levels

The effect of phosphorus and sulphur on the initiation and subsequent course of development of effective nodulation was determined for young seedlings of Stylosanthes humilis over the period days 1 1 to 26 from sowing. The plants were inoculated with an effective strain of Rhizobium and grown under controlled conditions in a small amount of nitrogen-deficient soil. Phosphorus had a beneficial effect on the initiation of nodules, which were first detected at day 11 in high-phosphorus plants, but not until day 14 in low. Thereafter, nodule development was greatly enhanced by phosphorus, nodule numbers, volumes and dry weights being increased. Nodule relative growth rates were stimulated from 0 . 3 g/g/day at low phosphorus levels to 0 . 7 g/g/day at high phosphorus levels over days 23-26. The nodules became pink earlier, and developed more rapidly as nitrogen-rich organs, in response to phosphorus. This suggested that from the earliest stages, phosphorus not only promoted the development of an increased mass of nodular tissue but also favoured an effective symbiosis. This enhanced nodule development led to greatly stimulated growth, with increasing amounts of total nitrogen and phosphorus in high-phosphorus plants. The assimilation of nitrogen by the whole plant was increased from 17 mg/g nodule dry weightlday at low to 53 mg/g/day with high phosphorus over days 23-26. Sulphur caused an increase in dry weight, but the response to sulphur mainly occurred late in development and was smaller than the response to phosphorus in the young seedlings of this trial.

Observations on the residual value of accumulated phosphorus in a red loam

1964 ◽  
Vol 15 (3) ◽  
pp. 377 ◽  
Author(s):  
JD Hughes ◽  
PGE Searle
Keyword(s):  
Total Phosphorus ◽  
Residual Value ◽  
Phosphorus Level ◽  
Monocalcium Phosphate ◽  
High Phosphorus ◽  
Pot Trial ◽  
The Difference ◽  
Phosphorus Levels

A pot trial was conducted in which tomatoes were grown in soils containing a range of total phosphorus depending on the amount of superphosphate which had been applied during the previous 9 years. Monocalcium phosphate was mixed with all soils to give 25, 75, or 150 p.p.m. added phosphorus. The above-ground portions of the plants were harvested after 47 days, and the pots seeded again without further additions of fertilizer. This crop was harvested 59 days later. It was shown that the response to current applications of phosphorus was dependent on the total phosphorus level. The addition of a given amount of phosphorus produced bigger yields on the high phosphorus soils. Moreover, the higher the level of applied phosphorus, the greater the difference in yield between soils of different total phosphorus levels. Yields were considerably lower in the second crop, but the interaction between total and applied phosphorus was still evident.It was concluded that the availability of the accumulated phosphorus was extremely low, and that the increased yields on the high phosphorus soils were due to a better utilization of applied phosphorus as a result of reduced fixation in these soils. The decrease in the rate of fixation was explained by blocking of fixation sites by the previously fixed phosphorus.

scholarly journals The CLE53–SUNN genetic pathway negatively regulates arbuscular mycorrhiza root colonization in Medicago truncatula

2020 ◽  
Vol 71 (16) ◽  
pp. 4972-4984 ◽  
Author(s):  
Magda Karlo ◽  
Clarissa Boschiero ◽  
Katrine Gram Landerslev ◽  
Gonzalo Sancho Blanco ◽  
Jiangqi Wen ◽  
...  
Keyword(s):  
Mycorrhizal Fungi ◽  
Phosphorus Uptake ◽  
Arbuscular Mycorrhizal ◽  
Dependent Manner ◽  
High Phosphorus ◽  
Peptide Modification ◽  
Cle Peptides ◽  
Autoregulation Of Nodulation ◽  
Low Phosphorus ◽  
Phosphorus Levels

Abstract Plants and arbuscular mycorrhizal fungi (AMF) engage in mutually beneficial symbioses based on a reciprocal exchange of nutrients. The beneficial character of the symbiosis is maintained through a mechanism called autoregulation of mycorrhization (AOM). AOM includes root-to-shoot-to-root signaling; however, the molecular details of AOM are poorly understood. AOM shares many features of autoregulation of nodulation (AON) where several genes are known, including the receptor-like kinase SUPER NUMERIC NODULES (SUNN), root-to-shoot mobile CLAVATA3/ENDOSPERM SURROUNDING REGION (ESR)-RELATED (CLE) peptides, and the hydroxyproline O-arabinosyltransferase ROOT DETERMINED NODULATION1 (RDN1) required for post-translational peptide modification. In this work, CLE53 was identified to negatively regulate AMF symbiosis in a SUNN- and RDN1-dependent manner. CLE53 expression was repressed at low phosphorus, while it was induced by AMF colonization and high phosphorus. CLE53 overexpression reduced AMF colonization in a SUNN- and RDN1 dependent manner, while cle53, rdn1, and sunn mutants were more colonized than the wild type. RNA-sequencing identified 700 genes with SUNN-dependent regulation in AMF-colonized plants, providing a resource for future identification of additional AOM genes. Disruption of AOM genes in crops potentially constitutes a novel route for improving AMF-derived phosphorus uptake in agricultural systems with high phosphorus levels.

2104-P: Serum Phosphorus Levels Are Associated with the Metabolic Syndrome and Adiponectin Levels in Nondiabetic Women with Normal Kidney Function

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 2104-P
Author(s):  
YUKA NATSUKI ◽  
TOMOAKI MORIOKA ◽  
YOSHINORI KAKUTANI ◽  
YUKO YAMAZAKI ◽  
MASAFUMI KURAJOH ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Kidney Function ◽  
Serum Phosphorus ◽  
Normal Kidney ◽  
Normal Kidney Function ◽  
The Metabolic Syndrome ◽  
Phosphorus Levels

Mixed-species plantations of Eucalyptus and Acacia mangium increase labile carbon and phosphorus levels in Ferralsol soils in the Cerrado biome, Brazil

2020 ◽  
Vol 82 (4) ◽  
pp. 342-351
Author(s):  
Wilbert Valkinir Cabreira ◽  
Marcos Gervasio Pereira ◽  
Fabiano de Carvalho Balieiro ◽  
Eduardo da Silva Matos ◽  
Renato de Aragão Ribeiro Rodrigues ◽  
...  
Keyword(s):  
Acacia Mangium ◽  
Mixed Species ◽  
Labile Carbon ◽  
Cerrado Biome ◽  
Phosphorus Levels

Spatial and Temporal Water Quality Trends in Severn Sound, Georgian Bay, since the Introduction of Phosphorus Control Guidelines: Nutrients and Phytoplankton, 1973 to 1991

1995 ◽  
Vol 30 (4) ◽  
pp. 565-592 ◽  
Author(s):  
A.F. Gemza
Keyword(s):  
Total Phosphorus ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Soluble Reactive Phosphorus ◽  
Euphotic Zone ◽  
Water Clarity ◽  
Sewage Treatment Plants ◽  
Order Of Magnitude ◽  
Phosphorus Levels

Abstract Severn Sound continues to exhibit signs of eutrophication despite initial identification of the problem in 1969 and the construction of several sewage treatment plants since then. In general, improvements in trophic state indicators have been marginal, suggesting that the sewage treatment plants have had limited success in controlling phosphorus concentrations. These discharges likely contributed to the increased total phosphorus levels and consequently the higher phytoplankton densities of the nearshore waters. Phytoplankton biovolumes were on average one order of magnitude higher than in the open waters of Lake Huron with mean summer biovolumes as high as 8.0 mm/L. Algal biovolumes were most dense in Penetang Bay, which experienced limited exchange with the main waters of the sound. No significant long-term trends were observed. Water clarity was declining significantly, however, at a rate of -0.60 to -0.78 m/year throughout the sound except in Sturgeon Bay. Total phosphorus levels were highly variable from year to year; however, concentrations from a 20-year perspective were declining in the open waters at a rate of 0.70 µg/L/year, but response was limited in nearshore areas. In Sturgeon Bay, mean annual euphotic zone total phosphorus as well as soluble reactive phosphorus levels declined by as much as 50% following the construction of a sewage treatment plant with tertiary treatment. Phytoplankton genera typical of eutrophic waters continued to dominate the algal assemblage but members indicative of mesotrophic conditions have become apparent in some areas of the sound.

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