The influence of high application rates of polyacrylamide on microbial metabolic potential in an agricultural soil

Sojka, R.E.; Entry, James A.; Fuhrmann, Jeffry J.

doi:10.1016/j.apsoil.2005.06.007

Cited by 50 publications

(49 citation statements)

References 37 publications

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“…Superabsorbent polymers can inhibit the growth of microorganisms by binding them to soil particles or to themselves, which affects the mobility of microorganism cells and limits their access to carbon dioxide and nutrients (Sojka et al 2006). Figure 3.…”

Section: Resultsmentioning

confidence: 99%

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Influence of superabsorbent polymers on the chemical composition of strawberry (Fragaria × ananassa Duch.) and biological activity in the soil

Mikiciuk

Hawrot-Paw

2015

Folia Horticulturae

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By improving the air and water properties of soils, superabsorbent polymers can affect the increase and improvement of the quality of the yield of berry plants, including strawberries. Their presence in the soil has an influence on its biological activity as related to microorganisms. The aim of the research was to assess the influence of superabsorbent polymers added to the soil on the content of macroelements and sodium in the leaves and fruit of strawberry of the 'Elsanta' cultivar and changes in the number of soil bacteria, actinomycetes and fungi. The superabsorbent polymer (AgroHydroGel) was used in two doses: 1.8 and 3.6 g dm -3 of soil. The content of phosphorus, potassium, calcium, magnesium and sodium was assessed using the ASA method, while the content of nitrogen and sulphur was assessed by the elemental analysis method (CHNS analyser). The number of microorganisms was assessed with a BacTrac analyser and the coefficient of microorganism development extent (SR) was also determined. AgroHydroGel increased the content of nitrogen and potassium in leaves and fruit but did not affect the content of phosphorus, sulphur and sodium. The addition of the superabsorbent at a dose of 3.6 g dm -3 of soil reduced the magnesium content both in the leaves and fruit of the strawberry. AgroHydroGel decreased the content of calcium in the fruit. The use of AgroHydroGel contributed to the expansion of the K ion ratio to other ions, both in the leaves and fruits. We observed a significant increase in the amount of soil bacteria (1.8 g dm -3 dose) and no significant influence on actinomycetes and fungi (irrespective of dose used).

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Section: Resultsmentioning

confidence: 99%

“…This can be affected by season, employed measures or type of cultivated plant, which additionally impacts other significant variables, e.g. the content of nutrients (Sojka et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Influence of superabsorbent polymers on the chemical composition of strawberry (Fragaria × ananassa Duch.) and biological activity in the soil

Mikiciuk

Hawrot-Paw

2015

Folia Horticulturae

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“…In addition to the N enrichment from the amide groups in PAM, some commercial formulations also contain a few percent additional N, commonly as urea, to promote dissolution on hydration. Environmentally, the small shifts in soil microbial biomass and metabolic potential in the Sojka et al (2006) study were insignificant when weighed against the significant erosion prevention and runoff water quality protection afforded by the use of 5-15 kg PAM ha -1 per season in normal PAM use scenarios, compared to the 2691 and 5382 kg PAM ha -1 applied in their study. In order to apply the amounts of PAM added in their study, even assuming no PAM degradation annually, farmers would need to apply 15-kg active ingredient PAM ha -1 for 180 years to accumulate 2691 kg ha-1 and 360 years to accumulate 5382 kg ha -1 .…”

Section: Pam Effect On Organisms In Runoff and Soilmentioning

confidence: 99%

“…Kay-Shoemake and Watwood (1996) and Kay-Shoemake et al (1998a,b, 2000a reported that although PAM additions to field soils correlate with detectable changes in microbial C utilization, the effects are masked by the influences of other field variables such as crop cover type or nutrient status. Sojka et al (2006) reported the effects of ultrahigh PAM application rates to irrigated soils. Over a 6-year period 1000 kg ha -1 year-1 of a commercial anionic PAM product was added to the soil.…”

Section: Pam Effect On Organisms In Runoff and Soilmentioning

confidence: 99%

Polyacrylamide in Agriculture and Environmental Land Management

Sojka

Bjorneberg

Entry

et al. 2007

Advances in Agronomy

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354

240

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“…The anionic charges on PAM solution use cations in the soil to form ion bridges between negatively charged mineral and organic surfaces, thus neutralizing charges, shrinking the electrical double layer and enabling flocculation (Sojka et al 2006). In this way, PAM flocculates, binds and prevents soil particle transport, and restrains occurrence of soil wind erosion.…”

Section: Resultsmentioning

confidence: 99%

Wind tunnel experimental study on the effect of PAM on soil wind erosion control

Qiangguo

Tang

2007

Environ Monit Assess

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In recent years, high-molecular-weight anionic polyacrylamide (PAM) have been widely tested on a variety of soils, primarily in water erosion control. However, little information is available regarding the effectiveness of PAM on preventing soil loss from wind erosion. The research adopted room wind tunnel experiment, two kinds of soils were used which were from the agro-pastoral area of Inner Mongolia, the northwest of China, the clay content of soils were 22.0 and 13.7%, respectively. For these tests, all the treatments were performed under the condition of wind velocity of 14 m s −1 and a blown angle of 8.75%, according to the actual situation of experimented area. The study results indicated that using PAM on the soil surface could enhance the capability of avoiding the wind erosion, at the same time, the effect of controlling wind soil erosion with 4 g m −2 PAM was better than 2 g m −2 PAM's. Economically, the 2 g m −2 PAM used in soil surface can control wind erosion effectively in this region. The prophase PAM accumulated in soil could not improve the capability of avoiding the wind erosion, owing to the degradation of PAM in the soil and the continual tillage year after year. The texture of soil is a main factor influencing the capability of soil avoiding wind erosion. Soil with higher clay content has the higher capability of preventing soil from wind erosion than one with the opposite one under the together action of PAM and water.

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The influence of high application rates of polyacrylamide on microbial metabolic potential in an agricultural soil

Cited by 50 publications

References 37 publications

Influence of superabsorbent polymers on the chemical composition of strawberry (Fragaria × ananassa Duch.) and biological activity in the soil

Influence of superabsorbent polymers on the chemical composition of strawberry (Fragaria × ananassa Duch.) and biological activity in the soil

Polyacrylamide in Agriculture and Environmental Land Management

Wind tunnel experimental study on the effect of PAM on soil wind erosion control

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