The surface application impact of natural salt solutions as an herbicide on chemical properties of quasi-soil (quazizem)
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Under the experiment, we have given an impact assessment of a natural salt solution with herbicide activity on the chemical properties of a quazizemon the highway slope. We have used crude raw brines from the Troitsky deposit of the Krasnoyarsk Territory to study the action mechanism of natural salt with a concentration of 30% on the plant-soil system and the change in its chemical status. According to studies, the natural salt application as an herbicide caused soil alkalinization by 0.11-0.13 pH units while maintaining a neutral response of the soil solution and a composition change in the salts of the aqueous migrate. The maximum amount of toxic salts with a prevalence of NaCl and MgCl2 in the aqueous migrate is found in the variant of 30% natural salt solution + adjuvant Satellite, L.A single treatment of plants by a 30% salt solution with and without an adjuvant defined the occurrence of a weak salinity level of 0-20 cm of the quazizemlayer.A retreatment resulted in the average salinity level in the variant of 30% natural salt solution + adjuvant Satellite, L.The alcalination of the quazizemis impossible.Keywords:
Salt solution
This research explores the effects of selected salts on the microwave heating profile of a 5% (w/w) starch solution containing salt. the salts used were NaCl, CaCl2, FeCl3, Na4P2O7, or Na5P3O10 at a concentration of 1% (w/w). the temperature of the starch solution was taken every 10 s for 90 s, and the heating curves have been plotted to show the effects of different salts on the heating of the starch solutions. There was a significant difference in the heating profile of samples containing salts versus those with without salt. However, there was no significant effect of type of salt used in the starch solution.
Salt solution
Microwave heating
Modified starch
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The production of soybean (Glycine max L.) has doubled in the last two decades. It is now being grown on both traditional arable lands and on marginal soils, including saline soils, in various parts of the world. Most research on crop tolerance to salinity has been performed using soils with stable levels of salinity. However, there are soils that undergo sudden increases in topsoil salinity for short periods of time. The aim of this study was to compare the effect of stable salinity concentrations with peaks of salinity for their effects on soybean vegetative growth, grain yield, and the accumulation of chlorides. The response of soybean growth was evaluated in pot experiments with the following treatments: Control (non saline soil), soil salinity level of 0.4 S m-1 (0.4S) or 0.8 S m-1 (0.8S), and soil subjected to salinity peaks of 0.4 S m-1 (0.4P) and 0.8 S m-1 (0.8P). The salinity levels were obtained by application of saline irrigation water. Soybean responded differently to stable salinity levels versus peaks of salinity. When salinity was a permanent stress factor, regardless of the salinity level (i.e. 0.4 and 0.8 S m-1), biomass production and differentiation of reproductive organs was greatly affected. For 0.8S treated plants, they never reached the reproductive phase. Conversely, only small differences in growth data were found between 0.4P and Control treatments, although an 80% decrease in yield was associated with the 0.4P treatment. To obtain a reasonable soybean yield, a leaf chloride concentration of 1 mg g-1 of Cl- in dry matter should be considered a maximum threshold.
Topsoil
Saline water
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Based on the molecular topological theory,we introduce a new topological index Y and use it to study for salt effect constant k s of aliphatic acids in the salt solution.Our research indicates that for the above salt effect constant k s,there is a good linear relation between Y and k s and the related equation is eslablished.For this new method the calculation is convenient and the result is accurate.It has clear physical significane.
Constant (computer programming)
Salt solution
Topological index
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For solving the market of purified industrial Salt,Tianjin Changlu Hangu Salt Works cooperated with Bohai Tianhua Co.,Ltd,to seek the improving measurement of technic of purified industrial salt.By researching and demonstrating in Taiyuan chemical factory,the improved technic of purification of salty water was implemented in Bohai Tianhua Co.,Ltd.The result shows that there is a good market for purified industrial salt.
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Salt water
Factory (object-oriented programming)
Purified water
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Salt solution
Generality
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Salt-soluble protein was obtained from defatted proso millet powder by NaCl solution extracted. We studied the effects of concentration of NaCl solution, extraction time and powder-to-salt solution ratio. After that we adopted L_9(3~3)orthogonal experiments to determine the optimal extraction condition, and found that the optimal extraction condition were extraction time 30min, powder-to-salt solution ratio.1∶9 and concentration of NaCl solution 2%.Under this condition,yield of protein was 3.96%.
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Plant productivity is limited on an estimated one third of the irrigated land in the
world or approximately 4 x 10? ha by soluble salt accumulations in the soil, often
referred to as soil salinity or salinity. As irrigated agriculture expands, more salinity
problems will develop because there are millions of hectares of potentially irrigable
land that could become saline. Every year new salinity problem areas develop and are
identified. Salinity is the most important problem facing irrigated agriculture, and
solving salinity problems is one of the greatest challenges to agricultural scientists.
Much research has been conducted during the past 30 to 40 years to determine the
relative tolerance of crops to salinity. Most of the salinity tolerance data available
through the early 1960s was compiled into useful relationships by Bernstein in 1964,
and these data have been cited and applied throughout the world. Since then, many
new salinity tolerance studies have been conducted, and many new management practices
have been proposed, evaluated, and some of them practiced to reclaim salt-affected
soils for improved crop production. Recently, Maas and Hoffman evaluated
existing salinity tolerance data for agricultural crops and presented the data graphically
so that the relative tolerance among crops could be easily compared.
Dryland salinity
Hectare
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Salt solution
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Summary Heat treatment and salt addition on the physicochemical properties and quality of fresh noodles were investigated. The water activity was decreased, while the bound water content was increased after heat treatment, and this effect was dependent on the treated intensity and salt concentration, which extended the shelf life of noodles. The content of SDS‐soluble protein was decreased after heat treatment, and this effect was dependent on the treated intensity. However, 3% salt concentration can reduce the aggregation of SDS‐soluble protein. The paste viscosities were reduced, whereas the gelatinisation temperatures increased after heat treatment, and the variation was increased with increasing salt concentration. The hardness and chewiness of cooked noodles were increased after heat treatment, but adding salt reduced this effect. Results showed the quality of heat‐treated noodles can be precisely controlled by the addition of salt, and the optimal treatment condition was 98 °C and 2% salt concentration.
Chewiness
Salt solution
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Thirteen eggplant varieties were treated with different concentrations of NaCl(0,30,60,90,150 mmol/L and 180 mmol/L) and the salt tolerances were studied at germination stage.The results showed that the seed germination of some varieties was promoted under low concentration of NaCl(less than 90 mmol/L) and was repressed under high concentration(higher than 120 mmol/L).Salt tolerances of 13 materials were significantly different,and among them,2 cultivars were salt tolerant,3 cultivars fairly salt sensitive,and the rest comparatively salt tolerance.120 mmol/L NaCl was critical concentration,and laid down theoretical basis for screening salt tolerance of eggplant.
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