ESTIMATION OF THE INFLUENCE OF GRASSLOWING TECHNOLOGY ON THE STATE OF THE SOIL COVER OF PASTURES OF THE SEMI-DESERT ZONE

2020 ◽  
Vol 18 (4) ◽  
pp. 88-95
Author(s):  
B.N. Nasiyev ◽  
◽  
A.K. Bekkaliyev ◽  
Keyword(s):  
Physicochemical Parameters ◽  
Soil Cover ◽  
Cattle Grazing ◽  
Optimal Level ◽  
Exchangeable Sodium ◽  
Standard Methods ◽  
The Third ◽  
Western Kazakhstan ◽  
Mobile Phosphorus ◽  
Desert Zone

Managing pasture resources of Western Kazakhstan is complicated due to the deterioration of the physicochemical parameters of soils manifestating degradation and alkalinization as a result of intensive grazing. The research has been aimed at studying the technology of cattle grazing for preserving the physicochemical parameters of soils and increasing the efficiency of pasture use. The assessment and analysis of physicochemical indicators of soils were carried out with standard methods during 2018-2020, which allowed identifying the most optimal grazing technology. The results of research showed that under the influence of intensive grazing, physicochemical parameters worsened, a decrease in the humus reserves by 28.50% was detected, soil degraded to the third degree and became alkaline as a result of increase in exchangeable sodium to 1.66 mg(equiv.)/100g. Technology of moderate cattle grazing favorably affects the physicochemical parameters of the soils of pasture ecosystems. The chestnut soils of the pastures, where moderate grazing technology was applied, remained resistant to degradation and salinization. With this technology, the soil humus was reliably preserved at the level of 1.17%, mobile phosphorus was within the optimal level of 0.88 mg/100g.

scholarly journals CHANGES IN THE PHYSICOCHEMICAL PARAMETERS OF CHESTNUT SOILS IN WESTERN KAZAKHSTAN UNDER THE INFLUENCE OF THE GRAZING TECHNOLOGIES

2020 ◽  
Vol 17 (35) ◽  
pp. 192-202
Author(s):  
Beybit NASIYEV ◽  
Askhat BEKKALIYEV ◽  
Nurbolat ZHANATALAPOV ◽  
Vladimir SHIBAIKIN ◽  
Rakhimzhan YELESHEV
Keyword(s):  
Statistical Analysis ◽  
Physicochemical Parameters ◽  
Cattle Grazing ◽  
Exchangeable Sodium ◽  
Optimal Range ◽  
Standard Methods ◽  
Chestnut Soils ◽  
The Third ◽  
Western Kazakhstan ◽  
Mobile Phosphorus

Managing pasture resources of Western Kazakhstan is complicated due to the deterioration of the physicochemical parameters of soils, manifesting degradation, and alkalinization as a result of intensive grazing. The research has been aimed at studying the technology of cattle grazing for preserving the physicochemical parameters of soils and increasing the efficiency of pasture use. The assessment and statistical analysis of physicochemical indicators of soils were carried out with standard methods during 2018 – 2019, which allowed identifying the most optimal grazing technology. The results of the research showed that under the influence of intensive grazing, physicochemical parameters worsened, a decrease in the humus reserves by 10.88-12.35% was detected, soil degraded to the third degree, and became alkaline as a result of the increase in exchangeable sodium to 1.65 cmol (equiv.)/kg. The technology of moderate cattle grazing favorably affects the physicochemical parameters of the soils of pasture ecosystems. The chestnut soils of the pastures, where moderate grazing technology was applied, remained resistant to degradation and salinization. With this technology, the soil humus was reliably preserved at the level of 1.15-2.50%, mobile phosphorus was within the optimal range of 0.87-1.60 mg/100 g. It has been concluded that it is important to use the technology of moderate cattle grazing to improve the management of pasture resources, which is the scientific novelty of the research.

Soil Spatial Heterogeneity and Systems of Agriculture

2015 ◽  
Vol 2 (1) ◽  
pp. 50-59
Author(s):  
V. Medvedev
Keyword(s):  
Spatial Heterogeneity ◽  
Soil Cover ◽  
Regular Grid ◽  
Resource Saving ◽  
The Third ◽  
Soil Spatial Heterogeneity ◽  
Agriculture Systems ◽  
Zonal Soils

Aim. To consider soil continuality and discreteness as features of heterogeneity manifestation in a soil cover, important for construction of agriculture systems. Methods. Geostatistical research of soil spatial heterogeneity, revealing the contours of a fi eld with various parameters of fertility. Results. The use of principles of precise agriculture and inspection of indicative properties of fi eld soils using a regular grid allowed to divide a fi eld into contours with three levels of fertility: the fi rst one is characterized by optimal or close to optimum properties which allows refusing from (or reducing substantially) tillage, introduction of fertilizers or chemical ameliorates; the second one has average parameters of fertility corresponding to zonal soils and demands the application of zonal technologies; the third one (with the worst parameters of fertility) presupposes regular use of the improved technologies. Conclusions. The introduction of precise agriculture will allow replacing a traditional zonal system with thenew which is soil-protecting and resource-saving one.

scholarly journals THE LOCATION OF THE XANTHATE GROUPS IN PARTLY SUBSTITUTED CELLULOSE XANTHATES

1957 ◽  
Vol 35 (12) ◽  
pp. 1522-1533 ◽  
Author(s):  
E. P. Swan ◽  
C. B. Purves
Keyword(s):  
Cellulose Acetate ◽  
Chlorine Dioxide ◽  
Methyl Esters ◽  
Lead Tetraacetate ◽  
Degree Of Substitution ◽  
Hydroxyl Groups ◽  
Primary Position ◽  
Standard Methods ◽  
The Third ◽  
Almost All

Cellulose sodium xanthates of degree of substitution (D.S.) 0.4 to 0.66 were methylated to xanthate S-methyl esters which were then acetylated completely, the final xanthate D.S. remaining close to the original value. Dexanthation with aqueous chlorine dioxide near pH 4.5 and −5° removed almost all of the S-methyl xanthate groups, but the loss of a few acetyl groups from, and the retention of 1 to 2% of sulphur in, the resulting cellulose acetate could not be avoided. The original xanthate groups were presumably represented in this acetate as unsubstituted hydroxyl groups, and these were located by standard methods involving tosylation–iodination, tritylation, and oxidations with lead tetraacetate. Xanthate groups appeared to occupy the third and sixth, but not the second, position in the cellulose, and 53 to 61% of the substituent was in the sixth or primary position; one sample of viscose was "ripened" before the cellulose sodium xanthate was isolated, and the value was 81%. The results were of a preliminary nature, because severe technical difficulties reduced their reliability.

scholarly journals POTENTIOMETRIC PARAMETERS IN PATIENTS WITH NON-REMOVABLE ORTHOPEDIC STRUCTURES AND INTRAORAL HALITOSIS

2018 ◽  
pp. 17-20
Author(s):  
O.A. Udod ◽  
A.O. Hlivynska
Keyword(s):  
Oral Cavity ◽  
Physicochemical Parameters ◽  
Oral Fluid ◽  
Personal Hygiene ◽  
Control Group ◽  
Social Maladjustment ◽  
Dental Alloys ◽  
The Third ◽  
Unpleasant Odor ◽  
Bioelectric Potentials

Introduction. The most popular type of dentures is permanent orthopedic structures. However, their use is a serious intervention that changes biological balance in the oral cavity through galvanic, reflex and toxic allergic effects. Because of this, galvanic currents appear in the oral cavity, which have an adverse effect on the oral mucosa and the physicochemical parameters of the oral fluid. As a result of increasing bioelectric potentials in the oral cavity, oral microbiocenosis disorders may occur, the periodontium pathology develops or worsens and an unpleasant odor arises, which in aggregate can cause a social maladjustment of the patient. It is known that the main intraoral factor in the development of halitosis is the unsatisfactory hygienic condition of the oral cavity. Non-removable dentures made from non-noble dental alloys can also significantly affect the development of intraoral halitosis. Objective. To study potentiometric parameters in patients with intraoral halitosis who have fixed orthopedic constructions made of various materials by various technologies. Methods and Materials. 158 people aged 35-55 years with fixed orthopedic constructions in the oral cavity in the amount of 5-8 units with a service life of 2-3 years were examined. Four groups were formed: with stamped-brazed dentures, with cast-denture prostheses from dental alloys, with cast-in-place titanium structures and a control group without disrupting the integrity of the dentition. All patients underwent a sanation of the oral cavity, professional hygiene and anti-inflammatory treatment. In addition, hygienic training of patients with quality control of personal hygiene was conducted. In the course of the study, 35 patients from the first and second groups after the complex treatment were replaced by replacing the existing dentures with orthopedic structures made of titanium. The effectiveness of treatment was assessed by the dynamics of indices of hygiene, PMA, organoleptic assessment of halitosis and potentiometric parameters. Results. As a result of the study, it was found that patients with dentures, manufactured with the help of the stamped-brazed technology, were characterized by high indices of hygiene (1.29 ± 0.18 points) and PMA (66.79 ± 2.48%). The I degree of halitosis was observed in 27 patients (41.5%) of this group, II degree was observed in 35 people (53.8%) and III degree in 3 people (4.6%). In the second group, the hygiene index was 0.97 ± 0.12, the PMA index was 65.57 ± 2.18%. In 33 patients (67.4%) I degree of halitosis was detected, in 16 patients (32.6%) – II degree. In the third group, the hygiene index was 0.84 ± 0.12, the PMA index was 56.23 ± 1.22. Unpleasant odor in the majority of patients in this group (40 people or 90.9%) was determined when approaching a distance of 10 cm, which corresponded to I degree of halitosis. Only 4 patients (9.1%) had halitosis of II degree. In the control group, the KPI index was 12.13 ± 0.24, the level of hygiene was on average 0.81 ± 0.12 points and 55.56 ± 1.13%, respectively. There were no organoleptic signs of halitosis in this group.

scholarly journals Cross-Genera Transferability of Microsatellite Markers and Phylogenetic Assessment of Three Salsola Species from Western Kazakhstan

2020 ◽  
Vol 74 (5) ◽  
pp. 325-334
Author(s):  
Shyryn Almerekova ◽  
Nasima Favarisova ◽  
Yerlan Turuspekov ◽  
Saule Abugalieva
Keyword(s):  
Genetic Diversity ◽  
Ssr Markers ◽  
Simple Sequence Repeat ◽  
Sand Dunes ◽  
Haplotype Network ◽  
Internal Transcribed Spacers ◽  
Western Kazakhstan ◽  
Desert Zone ◽  
Environmental Importance ◽  
Simple Sequence

Abstract Salsola arbuscula Pall., Salsola arbusculiformis Drob. and Salsola chiwensis M. Pop. have great environmental importance as they can stabilise sand dunes and therefore are useful for desert zone landscaping. The genetic diversity and phylogenetic relationships of populations of these species collected in Western Kazakhstan were analysed using internal transcribed spacers (ITS) and simple sequence repeat (SSR) markers. The ITS sequences of species were aligned with sequences of 37 Salsola species from the NCBI. ITS analysis clustered the samples into two major groups and eight sections. The phylogenetic tree and haplotype network relationships confirmed the polyphyletic origin of Salsola and allowed taxonomic reassessment for the studied species. A set of SSR markers originally developed from genera Agriophyllum, Haloxylon, and Beta was tested for their variability in Salsola species. Twenty-six tested SSR markers were selected for their transferability scores, and 13 of them were suitable for study of genetic diversity in populations of three Salsola species. It was concluded that polymorphic SSR markers were efficient in the separation of the studied Salsola species and could be effectively used in studies related to the genetic variation in the genus.

scholarly journals An Environmental Study on Phytoplankton (Diatoms) in Al-Yusifiya River, Iraq

2014 ◽  
Vol 11 (3) ◽  
pp. 1301-1309
Author(s):  
Baghdad Science Journal
Keyword(s):  
Dissolved Oxygen ◽  
Water Temperature ◽  
Electric Conductivity ◽  
Physicochemical Parameters ◽  
Environmental Study ◽  
Euphrates River ◽  
The Third ◽  
Centric Diatoms

An environmental study conducted on diatoms in Al Yusifiya river beyond its branching from Euphrates river. Four sites were selected along the river for the period from march 2013 to September 2013. The present study involved the measurement of physicochemical parameters, also the qualitative and quantities of diatoms. The studied parameters values ranged as follows: 19-44Cº and 16-30 Cº for air and water temperature respectively, 6.9-8.7, 595-1248 µS/cm, 6.4-8.0 mg/l for pH, electric conductivity and dissolved oxygen respectively. A total of 74 taxa were recorded for diatoms, where the pinnate diatom was the predominant and recorded 64 taxa while 10 taxa for centric diatoms. The total number of diatoms was 1197.55*104 cell /l. The total number values were ranged as follows:( 28.3-48.6) *104 cell /l in the first site ,( 33.6-51.5) *104 cell /l in the second site,( 39.8-67.2) *104 cell /l in the third site and ( 22.3-38.0) *104 cell /l in the fourth site. Two species Asterionellaformosa Hassall and Diploneispuella Schumann were noticed in site 2 only, while C. prostateBerkeleyfound in all studied sites expect in site 1. StephaenodicushantzschiiGrunow and Didymosphenia geminate (lyngb.) Schmidtwere recorded in sites 1 and 3, Anomoeoneissp was recorded in sites 1 and 4 only. The Mastogloiasp was noticed only in sites 2 and 4.

Parasitism and production in weaner sheep grazing alternately with cattle

1978 ◽  
Vol 18 (92) ◽  
pp. 340 ◽  
Author(s):  
IA Barger ◽  
WH Southcott
Keyword(s):  
Haemonchus Contortus ◽  
Cattle Grazing ◽  
Sheep Grazing ◽  
Trichostrongylus Colubriformis ◽  
The Third ◽  
Cooperia Oncophora ◽  
Faecal Egg Counts

Three systems for the post-weaning management of Merino wethers were compared over two years. In all systems, the sheep were given two anthelmintic treatments with levamisole per year; at weaning in January, and in July. In the first system (SC) the same paddock was used as a weaning paddock each year in succession. In the second system (SC 6) sheep and cattle grazed the paddock alternately for 6- month periods from January and July; the third system (SC 12) comprised sheep and cattle grazing alternately for 12-month periods from July of each year. Compared with the SC treatment, weaners from the SC 6 treatment had significantly lower faecal egg counts and lower burdens of Haemonchus contortus, Trichostrongylm axei, Trichostrongylus colubriformis and Nematodirus spp. They had significantly higher numbers of Cooperia oncophora and similar numbers of Ostertagia circumcincta. SC 6 sheep made greater liveweight gains, produced heavier fleeces, and suffered lower mortalities than their SC counterparts. Results for the SC 12 system were usually intermediate. In a third year, the SC 12 system was modified to include a monthly treatment with levamisole. The liveweight gains, egg counts and mortalities of the monthly treatment sheep did not differ significantly from those of the SC 6 sheep. Both systems were superior to the SC treatment in controlling nematode infections in weaner sheep. There were no significant effects of any treatment on liveweight gains of cattle, although outbreaks of ostertagiosis occurred in the third year in two of the four replicates of the SC system.

scholarly journals FEATURES OF QUALITY OF LIFE INTERRELATED WITH INDICATORS OF PSYCHOEMOTIONAL STATE OF WOMEN IN THE PERIOD OF EVERY TRIMESTRE OF PREGNANCY

2016 ◽  
pp. 108-119 ◽  
Author(s):  
L. A. Agarkova ◽  
I. Yu. Buharina ◽  
A. L. Ulianich ◽  
E. M. Bershkova ◽  
I. V. Tolmachev
Keyword(s):  
Quality Of Life ◽  
Well Being ◽  
First Trimester ◽  
Optimal Level ◽  
Psychological Well Being ◽  
The Third ◽  
Self Confidence ◽  
Psychoemotional State ◽  
Study Methodology

In the article the actuality of study of quality of life is described as an integrative factor which influences the psychoemotional state of women in the period of pregnancy. According to the study methodology, the content of quality of life is disclosed in the indicators of physical and psychological components of health. By means of method of descriptive statistics and analysis of reliable differences general content is presented and specific features of quality of life in women in the period of the first, second and third trimesters of pregnancy are disclosed. It is found that from the first trimester to the third one the content of components of quality of life is characterized by increase of limitations in performing the physical load, improvement of general emotional state and increase of vital force and energy. Features of psychoemotional state of women in the period of the first, second and third trimesters of pregnancy are disclosed and described. It is revealed that the state of most women in every trimester of the pregnancy is characterized as a favourable one, however, in the first and last trimester for women a heightened anxiousness, lack of selfconfidence, rigidity, inability to satisfy their own needs are more typical than in the period of the second trimester of pregnancy. On the ground of results of the conducted correlational analysis the interrelationship of indicators of quality of life with indicators of psychoemotional state of pregnant women is shown and described, conditions of physical and psychological well-being in every trimester of pregnancy are identified. It was revealed that in the period of the first and second trimesters of pregnancy the conditions of physical and psychological well-being are as follows: readiness of women to respond flexibly in the new life situation, resistance towards failures, self-confidence and optimal level of anxiousness; in the period of the third trimester of pregnancy: feeling of well-being, positive mood, activity, resistance towards failures and self-confidence.

scholarly journals Effect of seasonal changes on the quantity of secondary metabolites from neem and eucalyptus plants in North Central Nigeria

2021 ◽  
Vol 7 (2) ◽  
pp. 043-052
Author(s):  
Saheed Olatunbosun Akiode ◽  
Adewale Elijah Fadeyi ◽  
Anna Asheahe Ibi ◽  
Muhammad Bashir Hassan
Keyword(s):  
Antioxidant Activity ◽  
Medicinal Plants ◽  
Secondary Metabolites ◽  
Seasonal Changes ◽  
Seasonal Fluctuations ◽  
North Central ◽  
Standard Methods ◽  
The Third ◽  
Saponin Content ◽  
Medicinal Properties

Traditional healthcare system depends majorly on natural medicinal plants from the environment. These plants produce secondary metabolites which confer on them the various medicinal properties; however, Seasonal fluctuations have impact on their availability and quantity hence their therapeutic efficacy. This study was carried out to evaluate the effect of seasonal changes on the quantity of secondary metabolites from Neem and Eucalyptus plants. Leaves and bark of Neem and Eucalyptus plants from SHESTCO, Federal Capital Territory (FCT), Abuja, Nigeria, were collected during the four quarters of the year 2019. Samples were dried, milled into powder, quantity of secondary metabolites was estimated and antioxidant activity was analysed using standard methods and protocols. Results from this study showed a variation in secondary metabolite compositions in response to seasons. In both plants’ organs, saponin content peaked and crashed during the second and fourth quarters of the year respectively, while alkaloid had the highest content during the fourth quarter of the year. Highest level of tannin was recorded in the leaf and bark of the plants during the third quarter of the year. Antioxidant activity of both plant extracts showed a regular patterned decrease with increasing concentration, with lowest antioxidant activity for both plants’ organs recorded during the third quarter. Findings of the study indicate that the quantity of inherent secondary metabolites in the medicinal plants and their corresponding antioxidant activity varies in specific manners at different times of the year due to seasonal variation.

scholarly journals STANDARDIZATION OF BALAMULA CHURNA (SIDA CORDIFOLIA L. ROOT POWDER)

2019 ◽  
pp. 27-30
Author(s):  
T. JYOSTNA KUMARI ◽  
G. PENCHALA PRATAP ◽  
SHYAM BABOO PRASAD ◽  
P. H. C. MURTHY ◽  
GOLI PENCHALA PRASAD
Keyword(s):  
Physicochemical Parameters ◽  
Water Soluble ◽  
Physicochemical Parameter ◽  
Phytochemical Screening ◽  
Standard Methods ◽  
Quality Detection ◽  
Rf Values ◽  
Sida Cordifolia

Objective: In this study, an attempt was made to generate information based on, physicochemical parameter preliminary phytochemical screening and HPTLC data needed for proper identification and authentication of Balamula Churna. Methods: The physicochemical parameters such as water-soluble extractive, alcohol soluble extractive and loss on drying at 105 °C, total ash and acid insoluble ash were determined according to standard methods. HPTLC studies were conducted and Rf values were documented. Results: Physicochemical parameter value were documented as pH (6.81%), LOD (7.5%), water-soluble extractive value (6.32%), alcohol soluble extractive value (5.92%) total Ash (9.00%) and Acid Insoluble Ash (1.60%). Preliminary phytochemical screening reveals the presence of glycoside, alkaloid, carbohydrate, phenol, flavonoid and saponin. HPTLC screening showed the presence of significant phytoconstituents with Rf value 0.02, 0.27, 0.34 and 0.96. Conclusion: All the results obtained from this study can be helpful in evaluation quality, detection of adulteration and substitution and emphasizing the importance of standardization.

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