EFFECTS OF CALCIUM, PHOSPHORUS AND POTASSIUM ON MYCORRHIZAL PLANTS

1979 ◽  
pp. 420-421 ◽  
Author(s):  
MELVIN J. DAFT
Keyword(s):  
Calcium Phosphorus ◽  
Mycorrhizal Plants ◽  
Phosphorus And Potassium

scholarly journals Bioinorganic markers of lens capsule barrier properties loss in age-related cataracts development

2019 ◽  
Vol 487 (5) ◽  
pp. 592-595
Author(s):  
N. A. Pakhomova ◽  
T. E. Borisenko ◽  
I. A. Novikov ◽  
S. E. Avetisov
Keyword(s):  
Crystalline Lens ◽  
Barrier Properties ◽  
Lens Capsule ◽  
The Body ◽  
Sodium Calcium ◽  
Age Related ◽  
Capsule Shell ◽  
Calcium Phosphorus ◽  
Spatial Cluster Analysis ◽  
Phosphorus And Potassium

The study demonstrates the significance of development mechanism of age-related cataract consequent to the loss of barrier properties of the lens capsule based on analysis of the accumulation of sodium, calcium, phosphorus and potassium. Spatial cluster analysis and correlation analysis were used to reveal for the first time the relation between the diffusion of light in the body of the crystalline lens and changes in its elemental composition. Distribution fields of elevated concentrations of sodium, calcium, phosphorus, potassium and chlorine are consistent with geometry of the lens capsule and clusterize together with areas of opacification in its body. The accumulation geometry of the elements in the lens body is also commonly seen in the aqueous humor of the anterior chamber, which can be considered evidence for excessive transitioning of their compounds through the lens capsule shell, while spatial connection with transparency changes - proof of its participation in cataractogenesis.

Dynamic Control of Calcium, Phosphate, Citrate, and Glucose Levels in Blood Serum

1963 ◽  
Vol 9 (1) ◽  
pp. 31-62 ◽  
Author(s):  
Samuel Natelson ◽  
Joseph B Pincus ◽  
Gandolfo Rannazzisi
Keyword(s):  
Dynamic Control ◽  
Serum Glucose ◽  
Significant Rise ◽  
Normal Children ◽  
Febrile Convulsions ◽  
Homeostatic Mechanism ◽  
Glucose Levels ◽  
Calcium Phosphorus ◽  
Phosphorus And Potassium ◽  
Major Factors

Abstract The effect of ACTH, adrenaline, noradrenaline, insulin, parathormone, hydrocortisone, and glucagon on the homeostatic mechanism controlling serum glucose, citrate, calcium, phosphorus, and potassium was studied in fasting rabbits and children. Citrate levels are kept in balance by ACTH, adrenaline, and glucagon, which raise the levels, and by insulin, which lowers them. Stress alone raises citrate levels, probably through adrenaline and ACTH effects. Calcium levels in rabbits are markedly lowered by ACTH, given I.M., to tetany levels. Adrenaline has a similar, but mild, effect. I. M. parathormone raises calcium levels slowly. ACTH and parathormone may be the antagonists in keeping calcium levels constant. Insulin, adrenaline, ACTH, glucagon, and parathormone lower phosphate levels. Major factors in lowering phosphate levels acutely evidently are insulin, which moves phosphate into the cell, and parathormone, which moves it through the kidney. Insulin, adrenaline, ACTH, and glucagon lower potassium levels in the rabbit. Only noradrenaline causes a significant rise. In the normal child only citrate moves in the same direction (elevates) as in the rabbit after ACTH. Children with CNS abnormality behaved like normal children except for 3 with febrile convulsions. Homeostatic control of the constituents studied may be accomplished in the rabbit and the human by a balance of hormonal factors.

scholarly journals The Evaluation of Postmortem Ocular Fluid Analysis as a Diagnostic Aid in Sows

1990 ◽  
Vol 2 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Richard Drolet ◽  
Sylvie D'Allaire ◽  
Madeleine Chagnon
Keyword(s):  
Linear Regression ◽  
Blood Sample ◽  
Poor Correlation ◽  
Simple Linear Regression ◽  
Diagnostic Aid ◽  
Fluid Analysis ◽  
Ocular Fluids ◽  
Calcium Phosphorus ◽  
Diagnostic Usefulness ◽  
Phosphorus And Potassium

This study was undertaken to evaluate the diagnostic usefulness of postmortem ocular fluid analysis in estimating the antemortem status of various serochemical constituents. Chemical values of serum and aqueous and vitreous humors were compared following different procedures. A blood sample and the 2 eyes were collected from each of 100 sows at a nearby abattoir. The results obtained from immediate centrifugation of ocular fluids after sampling were compared with those samples in which centrifugation was delayed by 2 hours. Two different postmortem intervals were used for sampling ocular fluids, 2 and 24 hours. Concentrations of urea, calcium, phosphorus, potassium, sodium, and chloride were determined from serum and humors. Delayed centrifugation did not affect chemical values of ocular fluids nor the relationships between serum and humors. Phosphorus and potassium values increased significantly with the postmortem interval in both aqueous and vitreous humors. The relationships between chemical values of ocular fluids and serum were determined using simple linear regression. There was a poor correlation between ocular fluid and serum values for all electrolytes; a significant correlation was found only for urea concentrations in both humors.

The effect of fertilizer nitrogen, phosphorus and potassium on the calcium, magnesium and phosphorus status of pasture cut for silage

1982 ◽  
Vol 99 (1) ◽  
pp. 199-205 ◽  
Author(s):  
J. B. A. Rodger
Keyword(s):  
Calcium Concentration ◽  
Soil Phosphorus ◽  
Magnesium Concentration ◽  
Phosphorus Concentration ◽  
Nitrogen And Phosphorus ◽  
Calcium Phosphorus ◽  
Calcium Magnesium ◽  
Phosphorus Status ◽  
Phosphorus And Potassium ◽  
Clover Content

SUMMARYPhysiological problems in some Fife dairy herds were thought to be associated with mineral imbalance in grass cut for silage. Consequently trials at two sites were conducted to study the effects of three levels of nitrogen and phosphorus and two levels of potassium on yield and composition of pasture cut for silage.Nitrogen increased yield of herbage and reduced its clover content whereas phosphorus and potassium had little effect on yield or clover content. Herbage clover content and calcium concentration declined over the period of the experiment. Mean concentrations of calcium, magnesium and phosphorus were 5·8, 1·7 and 3·4 g/kg respectively. Concentrations of these minerals varied more with time of cutting and with season than with level of applied phosphorus and potassium.Nitrogen tended to reduce calcium concentration in mixed herbage and to increase magnesium concentration in the grass component; it did not affect herbage phosphorus concentrations, but narrowed the calcium-phosphorus ratio in the second cuts. Applied phosphorus increased herbage phosphorus concentration only at the site with the lower soil phosphorus status. Potassium tended to reduce magnesium concentration in clover and, at one site, in mixed herbage; it also tended to reduce herbage phosphorus concentrations in second cuts.Mineral uptake was increased by applied nitrogen. Mean annual uptake of calcium magnesium and phosphorus was 34, 10 and 20 kg/ha respectively.The effects of treatments on concentration and balance of these minerals are discussed in relation to ruminant requirements and maintenance of suitable levels of the minerals in the soil.It is concluded that normal applications of NPK fertilizer are not detrimental to satisfactory mineral balance in pasture.

scholarly journals Study on Selective Mechanization in Kharif Greengram (Vigna radiata L.)

2020 ◽  
Author(s):  
S. Srinivasa Rao ◽  
V. Sridhar ◽  
M. Vijaya Sai Reddy
Keyword(s):  
Agricultural Research ◽  
Fertilizer Application ◽  
Available Phosphorus ◽  
Research Station ◽  
Available Nitrogen ◽  
Calcium Phosphorus ◽  
Loam Soil ◽  
Phosphorus And Potassium ◽  
Level Of Significance ◽  
Seed Application

Background: Greengram is an important short duration crop for rainfed area of Telangana state. Green gram is grown widely for human diet which contains 25 % protein, 60 % carbohydrate, 1.3 % fat and several essential amino acid including lysine and easily digestable. It is also rich in Vitamin A, B1, B2 C and calcium, phosphorus and potassium. Sowing of seed, application of fertilizers and intercultivation operations should be done timely to get the higher yields and monetary returns besides saving of time and labour, which is possible through only by mechanization in greengram. Methods: This experiment was conducted during Kharif season of 2017 and 2018 at Agricultural Research Station, Madhira farm, Professor Jayashankar Telangana Agricultural University, Hyderabad (Telangana). The soil of the experimental field was clay loam soil in texture, having alkaline reaction (pH=8.3), EC=0.33 ds m-1, low organic carbon (0.18%) and having low available nitrogen (153 kg ha-1), medium in available phosphorus (42 kg ha-1) and high in available potassium (538 kg ha-1). This experiment comprising of two treatments i.e., selective mechanization and normal practice, which was tested by simple t-test at 5% level of significance, non-replicated. Result: Sowing of seed and fertilizer application through seed cum fertilizer drill and intercultivation by tractor drawn implements has shown in good crop growth inturn to get the higher yields and monetary returns besides saving of labour and time in greengram cultivation.

scholarly journals SÍNTESE, CARACTERIZAÇÃO E AVALIAÇÃO DE BIOCARVÃO PRODUZIDO A PARTIR DE RESÍDUOS DE INDÚSTRIAS FRIGORÍFICAS COMO POTENCIAL

2020 ◽  
Vol 12 (2) ◽  
pp. 89-101
Author(s):  
Ricardo Roberto de Moura ◽  
Bruno Carrion Castro ◽  
Alexandre Teixeira de Souza
Keyword(s):  
Energy Source ◽  
Calorific Value ◽  
Green Line ◽  
X Ray Diffraction ◽  
Soil Fertilization ◽  
X Ray ◽  
Different Temperatures ◽  
Calcium Phosphorus ◽  
Phosphorus And Potassium ◽  
Pyrolysis Processes

The study of using refrigerator effluent as an energy source and fertilizer generation is justified due to the main problem with a refrigerator: the generation of waste. The purpose of the work was to seek an alternative for the use of the refrigerator effluent (Red line, Green line). The calorific value was quantified in order to determine the capacity to feed an energy generator and to evaluate whether the burning residue is viable for soil fertilization. For this, 3 pyrolysis processes were carried out at different temperatures, obtaining the biochar. In addition, thermal analyzes, X-ray diffraction analyzes, and X-ray fluorescence spectrometry analyzes were conducted. The results of the analyzes showed that the values of calorific value obtained were close to those of other materials already proven in the literature. Thus, it is concluded that biocarbons from the refrigerator have favorable properties for the energy generation process.The samples showed a large amount of Carbon and other elements such as Silicon, Calcium, Phosphorus and Potassium in their composition, indicating that biochar deserves to be better studied as a possible fertilizer.

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