scholarly journals Research of water-physical properties of soil with application of hydrogel in the Kurchum district of the Eastern-Kazakhstan region

2020 ◽  
Vol 99 (3) ◽  
pp. 29-35
Author(s):  
Tatyana Vdovina ◽  
◽  
Andrey Vinokurov ◽  
Elena Isakova ◽  
Olga Lagus ◽  
...  
Keyword(s):  
Physical Properties ◽  
Water Regime ◽  
Botanical Garden ◽  
Physical Parameters ◽  
Moisture Regime ◽  
Soil Density ◽  
Moisture Capacity ◽  
Maximum Field ◽  
Properties Of Soil ◽  
Eastern Kazakhstan

The purpose of the research is to study the water-physical parameters of the soil, on the basis of which it is possible to analyze the moisture regime and draw conclusions about the applied innovative technologies. The results of the experiments; set according to the developed recommendations by the employees of the Altay Botanical Garden. The article provides data on the water-physical properties of the soil: density, humidity and maximum field moisture capacity. The results of the experiments showed that with the help of the «Akvasorb» hydrogel, it is possible to regulate the water regime of soils and increase the moisture reserves available to plants in conditions of water scarcity. Thus, the addition of the preparation at a rate of 1.5 kg/m3 and 2.0 kg/m3 helps to retain the greatest amount of moisture in the soil from 15 % to 24 % across all horizons. These same norms increase the water reserves in the oil, especially in the spring and improve its density. All this contributes to a better development of plants.

THE ECONOMY OF WATER RESOURCES WITH THE USE OF POLYMER COMPLEXES IN IRRIGATION OF A COTTON

2018 ◽  
pp. 8-12
Author(s):  
M. Khamidov ◽  
B. Suvanov ◽  
K. Khamroev
Keyword(s):  
Water Resources ◽  
Moisture Capacity ◽  
Polymer Complexes ◽  
Maturation Phase ◽  
Flowering Phase ◽  
Fruit Cultivation ◽  
Growth Development ◽  
Control Variant ◽  
Maximum Field ◽  
Alluvial Meadow

The article deals with the use of polymer complexes in alluvial-meadow soils under the pre-determined humidity of 70-80-65% of the maximum field moisture capacity, in the second option with the 1-2-1 scheme in the Bukhara oasis. During the seedling and flowering phase, one irrigation irrigation norm was performed at 734 m3/ha; during the blooming and fruit cultivation phase, three irrigation operations were performed with irrigation norms of 631-644 m3/ha, one irrigation with a watering rate of 865 m3/ha was performed during the maturation phase. The irrigation norm was 2874 m3/ha or, relative to the control variant, by 1754 m3/ha less, which allowed saving manual water, as well as the results of the conducted experiments and their impact on cotton growth, development and yield.

scholarly journals Analysis of the Physical Properties of Seeds of Selected Viburnum Species for the Needs of Seed Sorting Operations

Processes ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 711
Author(s):  
Zdzisław Kaliniewicz ◽  
Dariusz J. Choszcz
Keyword(s):  
Physical Properties ◽  
Ornamental Plants ◽  
Seed Mass ◽  
Terminal Velocity ◽  
Landscape Design ◽  
Physical Parameters ◽  
Regression Analyses ◽  
Uniform Size ◽  
Size Fractions ◽  
Physical Attributes

Viburnum is a genus of colorful and ornamental plants popular in landscape design on account of their high esthetic appeal. The physical properties of viburnum seeds have not been investigated in the literature to date. Therefore, the aim of this study was to characterize the seeds of selected Viburnum species and to search for potential relationships between their physical attributes for the needs of seed sorting operations. The basic physical parameters of the seeds of six Viburnum species were measured, and the relationships between these attributes were determined in correlation and regression analyses. The average values of the evaluated parameters were determined in the following range: terminal velocity—from 5.6 to 7.9 m s−1, thickness—from 1.39 to 1.87 mm, width—from 3.59 to 6.33 mm, length—from 5.58 to 7.44 mm, angle of external friction—from 36.7 to 43.8°, mass—from 16.7 to 35.0 mg. The seeds of V. dasyanthum, V. lentago and V. sargentii should be sorted in air separators, and the seeds of V. lantana and V. opulus should be processed with the use of mesh screens with round apertures to obtain uniform size fractions. The seeds of V. rhytodophyllum cannot be effectively sorted into batches with uniform seed mass, but they can be separated into groups with similar dimensions.

scholarly journals Understanding Type II Supernovae

2005 ◽  
Vol 192 ◽  
pp. 275-280 ◽  
Author(s):  
L. Zampieri ◽  
M. Ramina ◽  
A. Pastorello
Keyword(s):  
Physical Properties ◽  
Large Range ◽  
Simultaneous Analysis ◽  
Light Curves ◽  
Physical Parameters ◽  
Expansion Velocity ◽  
Type Ii ◽  
Strong Correlations ◽  
Systematic Analysis ◽  
Robust Estimates

SummaryWe present the results of a systematic analysis of a group of Type II plateau supernovae that span a large range in luminosities, from faint objects like SN 1997D and 1999br to very luminous events like SN 1992am. The physical properties of the supernovae appear to be related to the plateau luminosity or the expansion velocity. The simultaneous analysis of the observed light curves, line velocities and continuum temperatures leads us to robust estimates of the physical parameters of the ejected envelope. We find strong correlations among several parameters. The implications of these results regarding the nature of the progenitor, the central remnant and the Ni yield are also addressed.

Mechanical and Physical Properties of Soil-Cement Blocks Reinforced with Mineral Wool and Sisal Fiber

2017 ◽  
Vol 29 (3) ◽  
pp. 04016225 ◽  
Author(s):  
Diego Alejandro Gutiérrez-Orrego ◽  
Edwin Fabián Garcia-Aristizabal ◽  
Maryory Astrid Gomez-Botero
Keyword(s):  
Physical Properties ◽  
Mineral Wool ◽  
Sisal Fiber ◽  
Soil Cement ◽  
Mechanical And Physical Properties ◽  
Properties Of Soil

scholarly journals Pengaruh Sifat Fisik Tanah terhadap Hama Simphylid Pada tanaman Nanas (Ananas comosus (L.) Merr) di PT. Great Giant Pineapple Terbanggi Besar Lampung Tengah

2017 ◽  
Vol 15 (3) ◽  
Author(s):  
Sandi Aji ◽  
Afandi Afandi ◽  
Lestari Wibowo ◽  
K.E.S. Manik
Keyword(s):  
Physical Properties ◽  
High Hardness ◽  
Soil Physical Properties ◽  
Soil Sampling ◽  
Soil Science ◽  
Ananas Comosus ◽  
Survey Method ◽  
Soil Pests ◽  
Poor Soil ◽  
Properties Of Soil

This research was conducted in the planting area of pineapple (Ananas comosus) PT. GGP Terbanggi Besar Central Lampung indicated attacked by pests simphylid in March 2014 until May 2014. Analysis of soil physical properties carried out in the Laboratory of Soil Science, Department of Agrotechnology, Faculty of Agriculture, University of Lampung. The method used in this study is a survey method. Soil sampling conducted at three locations indicated simphylid pests. Soil sampling done at some point and some depth. Results from this research that pest symphilid most numerous in one location with a number of acquisition 172 tail where the location of the physical properties of good land which the density value of the content is low, the total pore low, macropores and high hardness low ground , allowing sinphylid be able to live and thrive. While at the location of two and three with the condition density value of the content is high, the total pore high, macropores low, and violence high soil pests simphylid not so much discovered as simphylid can not multiply and survive on the physical condition of poor soil Keywords: Pineapple, Symphilid, and physical properties of soil

Sign in / Sign up

Export Citation Format

Share Document