Long-term application of animal slurries to grassland alters soil cation balance

Murphy, P.N.C.; Stevens, R.J.; Christie, Peter

doi:10.1079/sum2005317

Cited by 8 publications

(2 citation statements)

References 8 publications

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“…Soil organic matter (SOM) content was determined by the Walkley–Black method (De Vos, Lettens, Muys, & Deckers, ) and total nitrogen (TN) quantified following the Kjeldahl method (Purcell & King, ). Total P (TP) and available P (AP) were extracted using sodium bicarbonate and measured by the molybdenum blue method (Christie, Murphy, Stevens, & Christie, ) on a Skalar Santt auto‐analyzer (SanPlus System, Breda, Netherlands); both NO 3 − ‐N and NH 4 + ‐N were quantified by extraction with 2 M of KCl, steam distillation, and titration (Stark & Hart, ). Available potassium (AK), cation exchange capacity (CEC), and calcium carbonate (CaCO 3 ) were measured using routine methods (Bao, ).…”

Section: Methodsmentioning

confidence: 99%

Temporal and spatial succession and dynamics of soil fungal communities in restored grassland on the Loess Plateau in China

et al. 2019

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Natural secondary succession of degraded soil has improved the ecological environment of the Loess Plateau, profoundly influencing the succession and dynamics of soil fungal communities restored grasslands in particular. This chronosequence and the varied topography of the Loess Plateau thus provide a unique opportunity to synchronously investigate the variation of soil quality and fungal communities as they develop over time and space. Here, we used high-throughput sequencing of the ITS rRNA gene region to analyze the fungal community at a local scale. Edaphic variables and fungal community characteristics were compared among three restoration durations (5, 20, and 30 years), two soil layers (topsoil and subsoil), and different topographic factors (slope positions and aspects). Edaphic variables displayed varying patterns with significant differences among restoration durations and soil layers, but no such topographic patterns were found. As succession proceeded, alpha and beta diversities of fungal communities changed as space changed; whereas, over time, the discrepancy in community composition between the two soil layers declined.Constructed co-occurrence networks of edaphic variables combined with fungal community composition and distribution patterns based on indicator and keystone species also varied among three durations. Fungal trophic guilds showed a contrasting distribution between the two soil layers, but they closely followed the soil nutrient conditions and metabolic characteristics of keystone species. Our results demonstrated that predictable spatial variation occurs in soil fungal communities in tandem with temporal succession and dynamics of indicator and keystone species in restored grassland on the Loess Plateau.

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Section: Methodsmentioning

confidence: 99%

Temporal and spatial succession and dynamics of soil fungal communities in restored grassland on the Loess Plateau in China

et al. 2019

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“…Soil alkali-hydrolyzed nitrogen (AN) was quantified using the alkali-hydrolyzed diffusion method 41 . Soil-available phosphorus (AP) was extracted with sodium bicarbonate and analyzed using the molybdenum-antimony resistance colorimetric method 42 . Soil-available potassium (AK) was extracted with ammonium acetate and measured by ultraviolet spectrophotometer 43 .…”

Section: Methodsmentioning

confidence: 99%

Organic fertilizer application promotes the soil nitrogen cycle and plant starch and sucrose metabolism to improve the yield of Pinellia ternata

Wei,

Li,

et al. 2024

Sci Rep

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Pinellia ternata (Thunb.) Breit is a traditional Chinese medicine with important pharmacological effects. However, its cultivation is challenged by soil degradation following excessive use of chemical fertilizer. We conducted an experiment exploring the effects of replacing chemical fertilizers with organic fertilizers (OF) on the growth and yield of P. ternata, as well as on the soil physicochemical properties and microbial community composition using containerized plants. Six fertilization treatments were evaluated, including control (CK), chemical fertilizer (CF), different proportions of replacing chemical fertilizer with organic fertilizer (OM1−4). Containerized P. ternata plants in each OF treatment had greater growth and yield than the CK and CF treatments while maintaining alkaloid content. The OM3 treatment had the greatest yield among all treatments, with an increase of 42.35% and 44.93% compared to the CK and CF treatments, respectively. OF treatments improved soil quality and fertility by enhancing the activities of soil urease (S-UE) and sucrase (S-SC) enzymes while increasing soil organic matter and trace mineral elements. OF treatments increased bacterial abundance and changed soil community structure. In comparison to the CK microbial groups enriched in OM3 were OLB13, Vicinamibacteraceae, and Blrii41. There were also changes in the abundance of gene transcripts among treatments. The abundance of genes involved in the nitrogen cycle in the OM3 has increased, specifically promoting the transformation of N-NO3− into N-NH4+, a type of nitrogen more easily absorbed by P. ternata. Also, genes involved in "starch and sucrose metabolism" and "plant hormone signal transduction" pathways were positively correlated to P. ternata yield and were upregulated in the OM3 treatment. Overall, OF in P. ternata cultivation is a feasible practice in advancing sustainable agriculture and is potentially profitable in commercial production.

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Topography affects the soil conditions and bacterial communities along a restoration gradient on Loess-Plateau

Liu

Zhang

et al. 2020

Applied Soil Ecology

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Long-term application of animal slurries to grassland alters soil cation balance

Cited by 8 publications

References 8 publications

Temporal and spatial succession and dynamics of soil fungal communities in restored grassland on the Loess Plateau in China

Temporal and spatial succession and dynamics of soil fungal communities in restored grassland on the Loess Plateau in China

Organic fertilizer application promotes the soil nitrogen cycle and plant starch and sucrose metabolism to improve the yield of Pinellia ternata

Topography affects the soil conditions and bacterial communities along a restoration gradient on Loess-Plateau

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