The Use of Waste Sorbents for Surface Wastewater Treatment to Intensify Plant Growth

2021 ◽  
Vol 25 (7) ◽  
pp. 26-31
Author(s):  
M.P. Fedorov ◽  
V.I. Maslikov ◽  
A.V. Chechevichkin ◽  
V.N. Chechevichkin ◽  
L.A. Yakunin
Keyword(s):  
Root System ◽  
Surface Runoff ◽  
Shoot Growth ◽  
Animal Husbandry ◽  
Forest Resources ◽  
Test Culture ◽  
Optimal Value ◽  
Solid Municipal Waste ◽  
Plant Test ◽  
Slight Inhibition

The possibility of using sorbents from FOPS® filters, spent in the processes of purification of surface wastewater, is shown to intensify the growth of radish plants of the “French breakfast” variety. The ability of these waste sorbents, introduced into soil-ground substrates (SGS) as structure-forming additives enriched with microelements, was found to significantly stimulate the development of the root system with some slight inhibition of shoot growth. In the course of the experiments, the optimal value of the addition of sorbents spent in the processes of cleaning surface runoff (from roads) to the SGS was determined, which provides the greatest increase in the biomass of the root system of plants used as a test culture. It has been established that the accumulation of heavy metals (HMs) in the leaves and roots of a plant test culture increases with an increase in their content in the spent sorbents, but the actual concentrations of HMs in plants do not exceed the standards for their content in robust feed for animal husbandry. An assessment was made of the use of sorbents spent in water purification processes to create soil used in the reclamation of landfills for the placement of solid municipal waste, industrial dumps, road slopes, as well as in the restoration of forest resources and soil remediation.

DETERMINATION OF THE SENSITIVITY OF THE MICROBIOLOGICAL EXPRESS METHOD FOR DETECTING FLUOROQUINOLONE ANTIBIOTICS IN RAW MATERIALS OF MEAT USING THE TEST CULTURE BACILLUS STEAROTHERMOPHILUS

2021 ◽  
Vol 1 (3) ◽  
pp. 249-254
Author(s):  
G.M. Goryainova ◽  
◽  
L.V. Arsenyeva ◽  
E.A. Denisova ◽  
◽  
...  
Keyword(s):  
Bacillus Stearothermophilus ◽  
Raw Materials ◽  
Detection Limits ◽  
Animal Husbandry ◽  
Express Method ◽  
Antimicrobial Drugs ◽  
Test Culture ◽  
Fluoroquinolone Antibiotics ◽  
Wide Range

The article presents the results obtained during experiments to determine the sensitivity of the method according to GOST R 55481-2013 to antibiotics from the group of fluoroquinolones. GOST provides detection limits for such antibiotics as augmentin – 25.0 mcg/kg, benzylpenicillin – 4.0 mcg/kg, doxycycline – 10.0 mcg/ kg, cefazolin – 25.0 mcg/kg. Today, we are familiar with a wide range of different antimicrobial drugs used in animal husbandry, including an extensive group of drugs such as levofloxacin, norfloxacin, ofloxacin, marbocin, marfloxin, pefloxacin, ciprofloxacin, and others related to fluoroquinolones. We experimentally determined the sensitivity parameters for enrofloxacin – 24 mcg/l, levofloxacin – 26 mcg/l, ciprofloxacin – 24 mcg/l, marbofloxacin – 25 mcg/l.

scholarly journals 14Carbon-labeled Photosynthate Partitioning in Ilex crenata `Rotundifolia' at Supraoptimal Root-zone Temperatures

1990 ◽  
Vol 115 (6) ◽  
pp. 1008-1013 ◽  
Author(s):  
John M. Ruter ◽  
Dewayne L. Ingram
Keyword(s):  
Root System ◽  
Root Respiration ◽  
Shoot Growth ◽  
Root Zone ◽  
Membrane Damage ◽  
Optimum Temperature ◽  
Short Term ◽  
Photosynthate Partitioning ◽  
Root Zones ◽  
Split Root

Ilex crenata Thunb. `Rotundifolia' split-root plants were grown for 3 weeks with root zones at 30/30, 30/34, 30/38, 30/42, 34/34, 38/38, and 42/42C. The 38C root-zone treatment was the upper threshold for several growth and physiological characteristics. A portion of the root system grown at or near the optimum temperature could compensate, in terms of shoot growth, for part of the root system exposed to supraoptimal root-zone temperatures up to 38C. Higher root-zone temperatures did not affect short-term photosynthetic rates or root : shoot ratios, but altered photosynthate partitioning to various stem and root sinks. Although no differences were found for total 14C partitioned to the roots, partitioning of 14C into soluble and insoluble fractions and the magnitude of root respiration and exudation were influenced by treatment. Heating half of a root system at 38C increased the amount of 14C respired from the heated side and increased the total CO2respired from the nonheated (30C) half. Exposure of both root halves to 42C resulted in membrane damage that increased the loss of 14C-labeled photosynthates through leakage into the medium.

Effect of restricted watering on sap flow and growth in corn (Zea mays L.)

1992 ◽  
Vol 72 (2) ◽  
pp. 361-368 ◽  
Author(s):  
J. E. Gavloski ◽  
C. R. Ellis ◽  
G. H. Whitfield
Keyword(s):  
Zea Mays ◽  
Root System ◽  
Heat Balance ◽  
Sap Flow ◽  
Shoot Growth ◽  
Zea Mays L ◽  
Control Plant ◽  
Dry Weight ◽  
Root And Shoot Growth ◽  
Root Box

The heat balance technique for measuring sap flow was used to determine how plant stress from watering various proportions of the root system in corn (Zea mays L.) affects sap flow and root and shoot growth. Sectional root-boxes were used to divide the root system into four equal compartments so that known proportions of the root system could be subjected to water stress. Results indicated that the root-box technique is useful in studying the effects of adverse growing conditions in corn. Treatments consisted of no watering and watering one, two, three, or four sections of the box. Sap flow was measured using gauges that worked on a heat balance principle, and aspects of root and shoot growth were also measured. Withholding water from two or more sections of the box for 26 d resulted in decreased sap flow and fresh and dry weight of stalks compared with plants where all four sections were watered (control). Plant height was lower in boxes where one or more sections were deprived of water compared with the control. Dry weight of roots was less when water was withheld from three or all sections of the roots, and fresh weight of roots was less when water was withheld from all four sections. Corn plants with even half the roots growing under stressed conditions resulted in decreased sap flow and shoot growth.Key words: Root-box, moisture stress

scholarly journals ROOT CO2 EFFECTS ON THE PEACH ROOT SYSTEM

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1119b-1119
Author(s):  
D. M. Glenn ◽  
W. V. Welker
Keyword(s):  
Root System ◽  
Shoot Growth ◽  
Root Length Density ◽  
Lateral Roots ◽  
Field Studies ◽  
P Uptake ◽  
Solution Ph ◽  
Dry Matter Partitioning ◽  
Plant Respiration ◽  
Root Axis

Carbon dioxide is produced by microbial and plant respiration and accumulates in the soil. In previous field studies, CO2 levels were higher under a killed sod soil management system, relative to cultivation and herbicide systems (1.8 vs 0.8 and 1.0%), respectively. Our objective in these studies was to measure the effect of elevated levels of root system CO2 on root and shoot growth and nutrient uptake. Using soil and hydroponic systems in greenhouse studies, we maintained root system CO2 levels between 1.5 and 2.5%. Control CO2 levels were less than 1%. Root length density and dry matter partitioning to the root system were increased by root CO2 in soil and hydroponic studies; shoot growth was unaffected. In hydroponic culture, root CO2 increased P uptake, solution pH, root volume and the number of lateral roots/cm root axis. Elevated levels of CO2 in the root system stimulated root growth in both the soil and hydroponic studies.

scholarly journals Effects of Temperature Gibberellic Acid and Indolylacetic Acid on Root and Shoot Growth of Cutting From Podocarpus Lawrencei Hook F

1968 ◽  
Vol 21 (3) ◽  
pp. 573 ◽  
Author(s):  
AG Khan
Keyword(s):  
Gibberellic Acid ◽  
Root System ◽  
Shoot Growth ◽  
Indolylacetic Acid ◽  
Root And Shoot Growth ◽  
Effects Of Temperature ◽  
Normal Feature

It has been shown (Khan 1967) that roots of Podocarpus produce nodules under sterile conditions, thus proving that nodule production is a normal feature of the root system and is not induced by the presence of any microoorganism.

The optimal offset hauling branches to the deep part of the forest base

2015 ◽  
Vol 5 (3) ◽  
pp. 153-160
Author(s):  
Афоничев ◽  
Dmitriy Afonichev
Keyword(s):  
Cost Function ◽  
Forest Resources ◽  
Analytical Function ◽  
Deep Part ◽  
Target Cost ◽  
Optimal Value ◽  
Algebraic Operations ◽  
The Cost ◽  
Cost Of Construction

In this paper it is proved that the optimal value of the offset branches to the deep part of the forest resources should be supported by at least the cost of hauling by the timber moustache and highways, less the cost of construction, maintenance, repair, elimination of deep plot line. Composed of the target cost function, the derivative was equal to zero. As the result of algebraic operations an analytical function to determine the optimal offset branches to the deep part of the forest base. This dependence shows that the offset of the branches in the deep part of the forest base depends on the amount of wood removal from areas of the gravity of these branches.

Effects of Fruiting, Defoliation and Ring-Barking on the Accumulation and Distribution of Dry Matter in Branches of Coffea Arabica L. in Kenya

1971 ◽  
Vol 7 (1) ◽  
pp. 63-74 ◽  
Author(s):  
M. G. R. Cannell
Keyword(s):  
Root System ◽  
Vegetative Growth ◽  
Coffea Arabica ◽  
Dry Matter ◽  
Shoot Growth ◽  
Photosynthetic Capacity ◽  
Dry Weight ◽  
Fruit Growth ◽  
Dry Seasons ◽  
Coffea Arabica L

SUMMARYWhole branches were removed from trees in the field, at regular intervals, to follow the increase in dry weight of fruits and new vegetative growth. Information on the partition of carbohydrates was gained by comparing the growth of untreated, defoliated, de-blossomed and ring-barked branches. Untreated branches increased in weight rapidly when their fruits began to expand, probably because they imported carbohydrates, and their net photosynthetic capacity increased. More young fruits were shed from defoliated than from untreated branches, thus partially compensating for loss of leaf. Non-fruiting, and sometimes fruiting, branches exported a considerable amount of assimilate during the dry seasons, when the trunk-root system was a relatively important dry matter sink. When there were many fruitless branches on fruiting trees, the fruiting branches imported carbohydrates from them during the whole period of fruit growth, whereas fruitless branches imported carbohydrates only when there was a ‘flush’ of shoot growth.

scholarly journals ЗАСТОСУВАННЯМ ГІСТОХІМІЧНОГО МЕТОДУ ПРИ ВИВЧЕННЯ РОЗПОДІЛУ ВАЖКИХ МЕТАЛІВ В ПРОРОСТКАХ КУКУРУДЗИ

2019 ◽  
pp. 31-35
Author(s):  
І. М. Журавльова
Keyword(s):  
Heavy Metals ◽  
Root System ◽  
Filter Paper ◽  
High Sensitivity ◽  
Cadmium Nitrate ◽  
Test Culture ◽  
Petri Dishes ◽  
Analytical Reagent ◽  
Cadmium And Lead ◽  
The Impact

The article deals with the impact of hеavy metals on the growth and development of corn seedlings on early stages of ontogenesis. Heavy metals enter the plant, mainly through the root system. Therefore, the primary reaction of the plant to their impact, which can be clearly traced through the inhibition of growth occurs in the root system. Corn was used as the test culture. The seeds were germinated for three days in the dark at t = 27 ° C on filter paper moistened with distilled water. Three-day seedlings were transplanted into Petri dishes on filter paper moistened with solutions of cadmium nitrate salts (1×10-4 and 5× 0-4 M) and lead (1×10-3 and 1.5×10-3 M). The Petri dishes were kept in a thermostat at 27 ° C. The nature of the reaction of corn seedlings to the increase of the concentration of heavy metals manifested more clearly under the action of lead ions and was expressed in the suppression of growth processes. To detect the localization of heavy metals in the tissues of plants, we suggest the use of a histochemical method based on the formation of colored complexes of analytical reagents with the investigated heavy metals. Dithizone, characterized by high sensitivity to cadmium and lead, was used as such a reagent. After incubating the seedlings with the corresponding salts, a series of transverse sections of the root were prepared and placed on a glass slide. Then, 3-4 drops of the analytical reagent were applied, and after a few minutes the transverse sections were examined under a microscope at various magnifications. The localization of cadmium and lead was identified by the red staining of root tissues. It was found out that deposits of dithizonates of metals were observed mainly in the tissues of rhizoderm, exoderm and mesoderm. No metal dithizonates were detected in the pericycle and the central cylinder. Thus, the experiments have proved that the endoderm plays a barrier role in the transport of metals through the root.

scholarly journals Assessment of Forest Resource Exploitation in the Rural Communities of District Jhelum, Pakistan

2019 ◽  
Vol 10 (3) ◽  
pp. 16-21
Author(s):  
Rubab Zafar Kahlon ◽  
Ibtisam Butt
Keyword(s):  
Rural Communities ◽  
Energy Production ◽  
Linear Regression Analysis ◽  
Animal Husbandry ◽  
Forest Degradation ◽  
Forest Resources ◽  
P Value ◽  
Forest Resource ◽  
Resource Exploitation ◽  
Awareness Campaigns

18 October, 2019 Accepted: 25 October, 2019Abstract: Forest resources are deteriorating and experiencing decline around the globe due to unsustainable use andover exploitation. The present study was an attempt to determine the relationship between human activities, forestresource utilization, extraction methods and practices of forest resource exploitation in the district Jhelum of Pakistan.For this purpose, primary sources of data were used which were collected from 8 villages through structuredquestionnaire and tabulated in Microsoft Excel 365 and SPSS 22 was used for multiple linear regression analysis. Theresults revealed that farming, wood cutting, animal husbandry and agro-forestry were the major occupations in thestudy area. Most commonly used resources included timber 26%, fuelwood 25% and fodder 19%. Methods used forresource extraction included gathering 49%, plucking 34% trapping 11% and cutting 6%. Population growth, increaseddemand of fuelwood and land conversion were the main reasons behind forest degradation. Results for multiple linearregression revealed that Forest based activities, sources of energy production, methods used for wood harvesting andresource extraction and use of fuelwood for energy production contributed significantly towards extensive forestresource exploitation with p value <0.5 within the study area. The study suggests that effective measures should betaken by forest department to control the unsustainable use of forest resources by stringent management interventionsand awareness campaigns in Jhelum district.

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