Effects of biochar and straw returning on the key cultivation limitations of Albic soil and soybean growth over 2 years

Xiu, Liqun; Zhang, Weimin; Sun, Yuanyuan; Wu, Di; Meng, Jun; Chen, Wenfu

doi:10.1016/j.catena.2018.10.041

Cited by 74 publications

(31 citation statements)

References 28 publications

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“…In dark brown soils, they have a loose and porous structure, which is conducive to the vertical translocation of phytoliths, while the stronger earthworm activity in the humus horizon of dark brown soils may enhance the leaching of phytoliths. For albic soils, studies have shown that the clay particles in albic soils can be transported downwards with percolating water (Xiu et al, 2019). Notably, we found that the content of clay particles in the B layer and lower layers of albic soils was higher than in the upper layer ( Table 4 ).…”

Section: Discussionmentioning

confidence: 99%

Translocation of Phytoliths Within Natural Soil Profiles in Northeast China

Liu

Jie

et al. 2019

Front. Plant Sci.

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Phytoliths are a reliable paleovegetation proxy and have made an important contribution to paleoclimatic studies. However, little is known about the depositional processes affecting soil phytoliths, which limits their use for paleoclimate and paleovegetation reconstructions. Here, we present the results of a study of the vertical translocation characteristics of phytoliths in 40 natural soil profiles in Northeast China. The results show that phytolith concentration decreases within the humic horizon of the soil profiles and that ∼22% of the phytoliths are translocated below the surface of the studied soils. In addition, we find that the translocation rate of phytoliths varies markedly with phytolith type and that phytolith size and aspect ratio also have a significant effect. Phytoliths with length >30 μm and with aspect ratio >2 and those with length <20 μm and aspect ratio <2 are preferentially translocated compared to those with length >25 μm and aspect ratio <2. Our results demonstrate that differential translocation of phytoliths within soil profiles should be considered when using soil phytoliths for paleoclimate and paleovegetation reconstruction.

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Section: Discussionmentioning

confidence: 99%

Translocation of Phytoliths Within Natural Soil Profiles in Northeast China

Liu

Jie

et al. 2019

Front. Plant Sci.

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“…There are 32 countries or regions throughout the world that exhibit similar distributions of albic soil, and the total area of albic soil in China is approximately 5.273 million ha [ 1 ]. Due to the severe problems caused by dense physical structure, poor nutrient content, and low biological activity, albic soil has been characterized as a low-yielding soil [ 1 , 2 ]. It is therefore of great strategic significance to improve low-yielding albic soil to ensure food security.…”

Section: Introductionmentioning

confidence: 99%

Impact of Different Biochars on Microbial Community Structure in the Rhizospheric Soil of Rice Grown in Albic Soil

Yin

Wang

et al. 2021

Molecules

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The purpose of this study was to clarify the effects of biochar on the diversity of bacteria and fungi in the rice root zone and to reveal the changes in soil microbial community structure in the root zone after biochar application to provide a scientific basis for the improvement of albic soil. Rice and corn stalk biochar were mixed with albic soil in a pot experiment. Soil samples were collected at the rice maturity stage, soil nutrients were determined, and genomic DNA was extracted. The library was established using polymerase chain reaction (PCR) amplification. The abundance, diversity index, and community structure of the soil bacterial 16SrRNA gene V3 + V4 region and the fungal internal transcribed spacer-1 (ITS1) region were analyzed using Illumina second-generation high-throughput sequencing technology on the MiSeq platform with related bioinformatics. The results revealed that the biochar increased the soil nutrient content of albic soil. The bacteria ACE indexes of treatments of rice straw biochar (SD) and corn straw biochar (SY) were increased by 3.10% and 2.06%, respectively, and the fungi ACE and Chao indices of SD were increased by 7.86% and 14.16%, respectively, compared to conventional control treatment with no biochar (SBCK). The numbers of bacterial and fungal operational taxonomic units (OUT) in SD and SY were increased, respectively, compared to that of SBCK. The relationship between soil bacteria and fungi in the biochar-treated groups was stronger than that in the SBCK. The bacterial and fungal populations were correlated with soil nutrients, which suggested that the impacts of biochar on the soil bacteria and fungi community were indirectly driven by alternation of soil nutrient characteristics. The addition of two types of biochar altered the soil microbial community structure and the effect of rice straw biochar treatment on SD was more pronounced. This study aimed to provide a reference and basic understanding for albic soil improvement by biochar, with good application prospects.

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“…As indicated in previous studies, it is imperative to treat the soil with composted organic matter on a regular basis to achieve higher production in upland areas that eventually will lead to sustainable agricultural production 19,20 . Addition of organic matter in the form of compost has the additional benefit of improving soil quality by enhancing water‐holding capacity that fossil fuel‐based fertilizers cannot do, and acts as a sponge in sandy soils by holding water and making it available to plant roots by reducing wastage of water through runoff or drainage, furthermore helping plants against water stress conditions 9,21 .…”

Section: Introductionmentioning

confidence: 99%

Water productivity, yield and agronomic attributes of maize crop in response to varied irrigation levels and biochar–compost application

2021

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BACKGROUND Due to the rapid increase in world population, the demand for freshwater is increasing day by day. There is also immense pressure on the agriculture sector to produce more food with limited supplies of water. About 75% of freshwater is used in crop production out of which 63% is lost due to poor farm practices and evapotranspiration. Enhancement of crop water productivity for sustainable agriculture production especially in areas having water scarcity plausibly contributes towards the solution of water scarcity. RESULTS The combined application of biochar and compost has a highly significant impact on maize yield with increased grain production, i.e. 6.44 and 6.52 t ha−1 at 60% irrigation level with combined application of biochar and compost as compared with control at 6.39 and 6.44 t ha−1 at 100% irrigation level in autumn and spring seasons, respectively, by saving 40% of water. Furthermore, the highest value of water productivity (1.51 and 1.16 kg m−3) was achieved at 60% irrigation level with combined application of soil amendments. Also, cost–benefit analysis has shown highest values of net benefit with soil organic amendments. CONCLUSIONS It is concluded that addition of biochar and compost to soil has the potential to increase crop yield and growth even at low irrigation levels by enhancing water use efficiency. © 2021 Society of Chemical Industry

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Effects of biochar and straw returning on the key cultivation limitations of Albic soil and soybean growth over 2 years

Cited by 74 publications

References 28 publications

Translocation of Phytoliths Within Natural Soil Profiles in Northeast China

Translocation of Phytoliths Within Natural Soil Profiles in Northeast China

Impact of Different Biochars on Microbial Community Structure in the Rhizospheric Soil of Rice Grown in Albic Soil

Water productivity, yield and agronomic attributes of maize crop in response to varied irrigation levels and biochar–compost application

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Effects of biochar and straw returning on the key cultivation limitations of Albic soil and soybean growth over 2 years

Cited by 74 publications

References 28 publications

Translocation of Phytoliths Within Natural Soil Profiles in Northeast China

Translocation of Phytoliths Within Natural Soil Profiles in Northeast China

Impact of Different Biochars on Microbial Community Structure in the Rhizospheric Soil of Rice Grown in Albic Soil

Water productivity, yield and agronomic attributes of maize crop in response to varied irrigation levels and biochar–compost application

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Effects of biochar and straw returning on the key cultivation limitations of Albic soil and soybean growth over 2 years