Determination of Energetic and Geometric Properties of Plant Roots Specific Surface from Adsorption/Desorption Ishoterm

Jozefaciuk, G.; Lukowska, Malgorzata; Szerement, Justyna

doi:10.4236/ajps.2013.48187

Cited by 7 publications

(6 citation statements)

References 16 publications

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“…The average adsorption energy, E, was calculated from the energy distribution function, f(E), derived from adsorption isotherms plotted in energy coordinates, assuming that adsorption energy at a given p/p 0 equals to ln(p 0 /p). More details on the calculations are given in Józefaciuk et al [ 46 ]. The water vapor adsorption isotherm provides the best characteristic of soil water content at low moistures that are most often met in upper soil layers at normal weather conditions.…”

Section: Methodsmentioning

confidence: 99%

Effect of Low Zeolite Doses on Plants and Soil Physicochemical Properties

et al. 2021

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Thousands of tons of zeolitic materials are used yearly as soil conditioners and components of slow-release fertilizers. A positive influence of application of zeolites on plant growth has been frequently observed. Because zeolites have extremely large cation exchange capacity, surface area, porosity and water holding capacity, a paradigm has aroused that increasing plant growth is caused by a long-lasting improvement of soil physicochemical properties by zeolites. In the first year of our field experiment performed on a poor soil with zeolite rates from 1 to 8 t/ha and N fertilization, an increase in spring wheat yield was observed. Any effect on soil cation exchange capacity (CEC), surface area (S), pH-dependent surface charge (Qv), mesoporosity, water holding capacity and plant available water (PAW) was noted. This positive effect of zeolite on plants could be due to extra nutrients supplied by the mineral (primarily potassium—1 ton of the studied zeolite contained around 15 kg of exchangeable potassium). In the second year of the experiment (NPK treatment on previously zeolitized soil), the zeolite presence did not impact plant yield. No long-term effect of the zeolite on plants was observed in the third year after soil zeolitization, when, as in the first year, only N fertilization was applied. That there were no significant changes in the above-mentioned physicochemical properties of the field soil after the addition of zeolite was most likely due to high dilution of the mineral in the soil (8 t/ha zeolite is only ~0.35% of the soil mass in the root zone). To determine how much zeolite is needed to improve soil physicochemical properties, much higher zeolite rates than those applied in the field were studied in the laboratory. The latter studies showed that CEC and S increased proportionally to the zeolite percentage in the soil. The Qv of the zeolite was lower than that of the soil, so a decrease in soil variable charge was observed due to zeolite addition. Surprisingly, a slight increase in PAW, even at the largest zeolite dose (from 9.5% for the control soil to 13% for a mixture of 40 g zeolite and 100 g soil), was observed. It resulted from small alterations of the soil macrostructure: although the input of small zeolite pores was seen in pore size distributions, the larger pores responsible for the storage of PAW were almost not affected by the zeolite addition.

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Section: Methodsmentioning

confidence: 99%

Effect of Low Zeolite Doses on Plants and Soil Physicochemical Properties

et al. 2021

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“…For more details on surface parameters estimation see Jozefaciuk and Lukowska () and Jozefaciuk, Lukowska, and Szerement ().…”

Section: Methodsmentioning

confidence: 99%

Barley varieties in semi‐controlled and natural conditions—Response to water shortage and changing environment

Surma

Kuczyńska

Mikołajczak

et al. 2018

J Agronomy Crop Science

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The yield potential of 60 spring barley varieties was examined under controlled drought and natural conditions in the years 2011–2013. The studied varieties were genotyped with the 1536‐SNP barley oligonucleotide assay. In experiments with controlled drought conditions, the grain yield, 1,000‐grain weight, number of productive tillers and length of the main stem were measured. Physicochemical properties such as the specific surface area, water adsorption energy, fractal dimension and nanopore radius of the plant leaves were determined and correlated with yield‐forming traits. Field trials were conducted over 3 years at 14 locations, where along with the yield‐related traits, monthly rainfall and average temperature were monitored. Five varieties of high yield and five varieties relatively stable under both semi‐controlled and natural conditions were distinguished. The yield‐related traits observed in various locations were related to environmental variables relevant to water availability. The sum of the rainfall in April and May was negatively correlated with the 1,000‐grain weight and positively with the plant height. Positive relationships were found between plant height and temperatures in June and July. Five markers detected earlier as linked to the quantitative trait loci in the mapping populations were identified to have a coherent effect among varieties of various pedigree.

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“…The calculations of adsorption energy distribution functions were performed using adsorption data, according to the theory of adsorption on heterogeneous surfaces (Kowalczyk et al, 2004). More details on the above theoretical approach and the calculations of apparent surface area and adsorption energy are presented in Józefaciuk et al (2013) and Szatanik-Kloc (2014).…”

Section: Methodsmentioning

confidence: 99%

Changes in the size of the apparent surface area and adsorption energy of the rye roots by low pH and the presence of aluminium ions induced

Szatanik-Kloc

2016

International Agrophysics

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A b s t r a c t. The plant reactions on Al-stress include i.a. change of the surface area of the roots, which in the physicochemistry of plants characterizes the transport of water and ions through the root. The object of this study is the specific surface area of the roots of plants which are tolerant to aluminium, such as rye. Plants of rye were grown in a nutrient solution for 14 days at pH 4.5 in the presence of Al 3+ ions of concentration 10, 20, and 40 mg dm . The control plants were grown continuously at pH 7 or pH 4.5 without Al 3+. The apparent surface area and adsorption energy of the plants roots were determined from water vapour adsorption -desorption data. The apparent surface area of roots growing in the aluminium was (with respect to control) statistically significantly lower. There were no statistically significant differences in the apparent surface area of the roots which grew in pH 7, pH 4.5 without Al 3+. The average water vapour adsorption energy of the root surface, under stress conditions decreased. In the roots grown in the presence of Al +3

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Determination of Energetic and Geometric Properties of Plant Roots Specific Surface from Adsorption/Desorption Ishoterm

Cited by 7 publications

References 16 publications

Effect of Low Zeolite Doses on Plants and Soil Physicochemical Properties

Effect of Low Zeolite Doses on Plants and Soil Physicochemical Properties

Barley varieties in semi‐controlled and natural conditions—Response to water shortage and changing environment

Changes in the size of the apparent surface area and adsorption energy of the rye roots by low pH and the presence of aluminium ions induced

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