Effect of synthetic and natural water‐absorbing soil amendments on photosynthesis characteristics and tuber nutritional quality of potato in a semi‐arid region

Xu, Shixiao; Zhang, Lei; McLaughlin, Neil; Mi, Junzhen; Qin, Chen; Liu, Jinghui

doi:10.1002/jsfa.7188

Cited by 8 publications

(3 citation statements)

References 46 publications

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“…Lentz ( 2015 ) observed that applying PAM to the soil increased the formation of soil water-stable aggregates, improved soil water conductivity, inhibited soil water evaporation, increased soil water retention, and thus improved the crop growth environment. Xu et al ( 2016 ) found that soil amendment with PAM improved the leaf net photosynthetic rate, stomatal conductance, and transpiration rate of potato compared with the control, and similar results were observed in our experiment. Wei et al ( 2011 ) found that different PAM treatments had no significant effect on the photosynthetic rate of maize, whereas the application of PAM decreased the transpiration rate compared with the control.…”

Section: Discussionsupporting

confidence: 90%

Application of biochar and polyacrylamide to revitalize coastal saline soil quality to improve rice growth

Abulaiti

She

Liu

et al. 2022

Environ Sci Pollut Res

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Poor soil quality is affected by salinity, which limits land productivity and sustainable agricultural development in coastal China. Hence, it is essential to choose suitable and efficient approaches to revitalize coastal saline soil quality and improve agricultural productivity. Biochar and polyacrylamide (PAM) have been widely applied as soil amendments to enhance soil structure, but the interactive effects of biochar and PAM on rice growth are unclear. The experiment described in this study was conducted over five consecutive growing seasons (from 2016 to 2020) with biochar (at 0, 32, and 79 t/hm 2 ) and PAM (at 0, 0.6, and 1.6 t/hm 2 ) applications to study the effects of amendments on soil properties, rice photosynthesis, and rice yield in coastal saline land. The soil property results showed that wheat straw biochar and PAM lowered soil total salt and bulk density, but increased the soil organic matter (SOM), mean weight diameter of water-stable aggregates (MWD), and macroaggregate (> 0.25 mm) content. The application of either biochar or PAM increased the rice net photosynthetic rate, transpiration rate, and stomatal conductance. The combined application of 32 t/hm 2 biochar + 0.6 t/hm 2 PAM increased the net photosynthetic rate by 26.0% and the transpiration rate by 24.8% relative to the control. The application of 32 t/hm 2 biochar and 1.6 t/hm 2 PAM significantly increased the rice grain yield. The path analysis model showed that spikelets per panicle and canopy gross photosynthesis had strong and significant positive effects on grain yield, whereas soil total salt had a negative effect on grain yield. The combined application of 32 t/hm 2 biochar + 0.6 t/hm 2 PAM was identified as the most effective for rice growth. Biochar and PAM amendments at an optimal level may enhance soil properties by reducing salinity. These findings indicate that biochar and PAM have the potential to remediate coastal saline soil quality and the environment, which would simultaneously increase the sustainable use of coastal land resources and food production to preserve the ecological environment. Supplementary Information The online version contains supplementary material available at 10.1007/s11356-022-23511-w.

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Section: Discussionsupporting

confidence: 90%

Application of biochar and polyacrylamide to revitalize coastal saline soil quality to improve rice growth

Abulaiti

She

Liu

et al. 2022

Environ Sci Pollut Res

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“…As a result of this, germination potential has some influence. While adding no-treatment SAPs, because the moisture is not absorbed by SAPs the water can be directly used by the seed and SAPs can reserve more water for plant germination by absorbing excess moisture and reducing the amount of direct evaporation [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

Effects of eco-friendly carbohydrate-based superabsorbent polymers on seed germination and seedling growth of maize

et al. 2018

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Desertification is the degradation of land in arid and semi-arid areas. Nowadays, lack of water and desertification are extreme problems for plant survival and growth in the arid and semi-arid areas of the world. It becomes increasingly important as to how to let the plant absorb moisture more effectively for keeping growth strong. We synthesized superabsorbent polymers (SAPs) with carbohydrate and characterized them by Fourier transform infrared spectra analyses, scanning electron microscopy and thermogravimetric/differential thermal analyses. Then, a completely randomized experiment was conducted to assess the effect of carbohydrate-based SAPs on seed germination and seedling growth of maize in an artificial climate chest. The results showed that adding an appropriate amount of SAPs could improve root length, shoot length, total biomass, germination potential and germination rate. It indicates that this SAP is not toxic to plants and can promote seed germination, and at the same time provides a possibility of replacing other substrates.

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“…However, it is evident from the literature that the performance of SAP-Hs depends on many variables, such as the quality of irrigating water, environmental conditions, type and chemical composition of soil, and types of plants (Levy & Warrington, 2015). The application of inappropriate types or incorrect amounts of SAP-Hs can reduce soil ventilation, expose plants to diseases, or lead to nutrient deficiencies in crops (Xu et al, 2016a).…”

Section: Superabsorbent Hydrogels For Soil Conditioning and Water Manmentioning

confidence: 99%

Functional starch-based hydrogels: renewable material solutions for wastewater and agriculture industries

Siyamak¹

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Effect of synthetic and natural water‐absorbing soil amendments on photosynthesis characteristics and tuber nutritional quality of potato in a semi‐arid region

Abstract: Amendment treatment with PAM + HA always had the greatest effect on photosynthesis characteristics and tuber nutritional quality among all amendment treatments and thus merits further research.

Cited by 8 publications

References 46 publications

Application of biochar and polyacrylamide to revitalize coastal saline soil quality to improve rice growth

Application of biochar and polyacrylamide to revitalize coastal saline soil quality to improve rice growth

Effects of eco-friendly carbohydrate-based superabsorbent polymers on seed germination and seedling growth of maize

Functional starch-based hydrogels: renewable material solutions for wastewater and agriculture industries

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