Assessing Methods for Estimating Potentially Mineralisable Nitrogen Under Organic Production System in New Alluvial Soils of Lower Gangetic Plain

Mukherjee, Siddhartha; Saha, Niharendu; Sarkar, Biplab; Sengupta, Sudip; Ghosh, Samrat; Dey, Pradip

doi:10.1007/s42729-021-00419-x

Cited by 10 publications

(5 citation statements)

References 39 publications

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“…The soil nutrients and their ratios were determined after soil sampling from each plot at three different depths, i.e., 0-15 cm, 15-30 cm, and 30-45 cm. For proper preparation, sampled soil was dried at room temperature and sieved through a 2 mm mesh ( Asghar et al., 2013 ; Ansari and Deshmukh, 2017 ; Iram and Khan, 2018 ; Dai et al., 2021 ; Mukherjee et al., 2021 ). The relative percentage of sand, silt, and clay were analyzed through particle size distribution ( ISO 11277, 2009 ) while soil textural class was confirmed by the texture triangle from the International Union of Soil Science (IUSS) ( Moeys, 2018 ).…”

Section: Methodsmentioning

confidence: 99%

“…The data of all parameters was undergone through analysis of variance (ANOVA) while means were compared with the help of least significant difference (LSD) at 5% (p ≤ 0.05) probability level by Duncan’s test ( Bargali et al., 1993 ). The results were correlated by Pearson’s correlation analyses ( Mukherjee et al., 2021 ). The standard error mean of the data was represented in each figure by error bars ( Akhtar et al., 2009 ).…”

Section: Methodsmentioning

confidence: 99%

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Characterizing indigenous plant growth promoting bacteria and their synergistic effects with organic and chemical fertilizers on wheat (Triticum aestivum)

Asghar,

Ahmed,

Farooq

et al. 2023

Front. Plant Sci.

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The excessive use of chemical fertilizers is deteriorating both the environment and soil, making it a big challenge faced by sustainable agriculture. To assist the efforts for the solution of this burning issue, nine different potential native strains of plant growth-promoting bacteria (PGPB) namely, SA-1(Bacillus subtilis), SA-5 (Stenotrophomonas humi),SA-7(Azospirillum brasilense), BH-1(Azospirillum oryzae), BH-7(Azotobacter armeniacus), BH-8(Rhizobium pusense), BA-3(Azospirillum zeae), BA-6(Rhizobium pusense), and BA-7(Pseudomonas fragi) were isolated that were characterized morphologically, biochemically and molecularly on the basis of 16S rRNA sequencing. Furthermore, the capability of indigenous PGPB in wheat (Triticum aestivum, Chakwal-50) under control, DAP+FYM, SA-1,5,7, BH-1,7,8, BA-3,6,7, DAP+ FYM + SA-1,5,7, DAP+FYM+ BH-1,7,8 and DAP+FYM+ BA-3,6,7 treatments was assessed in a randomized complete block design (RCBD). The results of the study showed that there was a significant increase in plant growth, nutrients, quality parameters, crop yield, and soil nutrients at three depths under SA-1,5,7, BH-1,7,8, and BA-3,6,7 in combination with DAP+FYM. Out of all these treatments, DAP+ FYM + BA-3,6,7 was found to be the most efficient for wheat growth having the highest 1000-grain weight of 55.1 g. The highest values for plant height, no. of grains/spike, spike length, shoot length, root length, shoot dry weight, root dry weight, 1000 grain weight, biological yield, and economic yield were found to be 90.7 cm, 87.7 cm, 7.20 cm, 53.5 cm, 33.5 cm, 4.87 g, 1.32 g, 55.1 g, 8209 kg/h, and 4572 kg/h, respectively, in the DAP+FYM+BA treatment. The DAP+FYM+BA treatment had the highest values of TN (1.68 µg/mL), P (0.38%), and K (1.33%). Likewise, the value of mean protein (10.5%), carbohydrate (75%), lipid (2.5%), and available P (4.68 ppm) was also highest in the DAP+FYM+BA combination. C:P was found to be significantly highest (20.7) in BA alone but was significantly lowest (11.9) in DAP+FYM+BA. Hence, the integration of strains BA-3, BA-5, and BA-7 in fertilizers can be regarded as the most suitable choice for agricultural growth in the sub-mountainous lower region of AJK. This could serve as the best choice for sustainable wheat growth and improved soil fertility with lesser impacts on the environment.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Characterizing indigenous plant growth promoting bacteria and their synergistic effects with organic and chemical fertilizers on wheat (Triticum aestivum)

Asghar,

Ahmed,

Farooq

et al. 2023

Front. Plant Sci.

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“…The zone falls under a sub-tropical, humid climate having an average annual rainfall of approximately 1550 mm and pan evaporation of 1.2 to 5.0 mm day −1 . The mean annual maximum and minimum temperatures were 36.3 • C and 12.5 • C, respectively [17]. The soil was qualified for the hyperthermic temperature class and classified as Aeric Haplaquept [18] with silty loam texture.…”

Section: Experimental Soilmentioning

confidence: 99%

Assessing the Capability of Chemical Ameliorants to Reduce the Bioavailability of Heavy Metals in Bulk Fly Ash Contaminated Soil

et al. 2021

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In-situ rehabilitation of fly ash at dumping sites has rarely been addressed for crop production due to growth-related constraints, largely of heavy metal (HM) contamination in soils and crops. Current communication deals with a novel approach to identify a suitable management option for rejuvenating the contaminated soils. In this background, a 60-days incubation experiment was conducted with different fly ash-soil mixtures (50 + 50%, A1; 75 + 25%, A2; 100 + 0%, A3) along with four ameliorants, namely, lime (T1), sodium sulphide (T2), di-ammonium phosphate (T3), and humic acid (T4) at 30 ± 2 °C to assess the ability of different fly ash-soil-ameliorant mixtures in reducing bio-availability of HMs. Diethylenetriaminepentaacetic acid (DTPA)-extractable bio-available HM contents for lead (Pb), cadmium (Cd), nickel (Ni), and chromium (Cr) and their respective ratios to total HM contents under the influence of different treatments were estimated at 0, 15, 30, 45, and 60 days of incubation. Further, the eco-toxicological impact of different treatments on soil microbial properties was studied after 60 days of experimentation. A1T1 significantly recorded the lowest bio-availability of HMs (~49–233% lower) followed by A2T1 (~35–133%) among the treatments. The principal component analysis also confirmed the superiority of A1T1 and A2T1 in this regard. Further, A1T1 achieved low contamination factor and ecological risk with substantial microbial biomass carbon load and dehydrogenase activity. Thus, liming to fly ash-soil mixture at 50:50 may be considered as the best management option for ameliorating metal toxicity. This technology may guide thermal power plants to provide the necessary package of practices for the stakeholders to revive their contaminated lands for better environmental sustainability.

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“…The zone falls under a sub-tropical, humid climate having an average annual rainfall of approximately 1550 mm and pan evaporation of 1.2 to 5.0 mm day −1 . The mean annual maximum and minimum temperature were 36.3° C and 12.5° C respectively (Mukherjee et al, 2021). The soil was quali ed for the hyperthermic temperature class and classi ed as Aeric Haplaquept (US Soil Taxonomy, Soil Survey Staff 2003) with silty loam texture.…”

Section: Experimental Soilmentioning

confidence: 99%

Assessing the suitability of chemical ameliorants for reducing bio-availability of heavy metals in bulk fly ash contaminated soil

Mandal

Mukherjee

Saha

et al. 2021

Preprint

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In-situ rehabilitation of fly ash at dumping sites has been rarely addressed for crop production due to growth-related constraints, largely of heavy metal (HM) contamination in soils and crops. Current communication deals with a novel approach to identify a suitable management option for rejuvenating the contaminated soils. In this background, a 60-days incubation experiment was conducted with different fly ash-soil mixtures (50 + 50%, A1; 75 + 25%, A2; 100 + 0%, A3) along with four ameliorants, namely, lime (T1), sodium sulphide (T2), di-ammonium phosphate (T3), and humic acid (T4) at 30 ± 2 0 C to assess the ability of different fly ash-soil-ameliorant mixtures in reducing bio-availability of HMs. DTPA-extractable bio-available HM contents for lead (Pb), cadmium (Cd), nickel (Ni), and chromium (Cr) and their respective ratios to total HM contents under the influence of different treatments were estimated at different stages of incubation. Further, the ecotoxicological impact of different treatments on soil microbial properties was studied. A1T1 significantly recorded the lowest bio-availability of HMs (~ 49–233% lower) followed by A2T1 (~ 35–133%) among the treatments. The principle component analysis also confirmed the superiority of A1T1 and A2T1 in this regard. Further, A1T1 achieved low contamination factor and ecological risk with substantial microbial biomass carbon load and dehydrogenase activity. Thus, liming to fly ash-soil mixture at 50:50 may be considered as the best management option for ameliorating metal toxicity. This technology may guide thermal power plants to provide the necessary package of practices for the stakeholders to revive their contaminated lands for better environmental sustainability.

show abstract

Assessing Methods for Estimating Potentially Mineralisable Nitrogen Under Organic Production System in New Alluvial Soils of Lower Gangetic Plain

Cited by 10 publications

References 39 publications

Characterizing indigenous plant growth promoting bacteria and their synergistic effects with organic and chemical fertilizers on wheat (Triticum aestivum)

Characterizing indigenous plant growth promoting bacteria and their synergistic effects with organic and chemical fertilizers on wheat (Triticum aestivum)

Assessing the Capability of Chemical Ameliorants to Reduce the Bioavailability of Heavy Metals in Bulk Fly Ash Contaminated Soil

Assessing the suitability of chemical ameliorants for reducing bio-availability of heavy metals in bulk fly ash contaminated soil

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