Enhancement of soil carbon and nitrogen stocks by abiotic and microbial pathways in three rubber‐based agroforestry systems in Southwest China

Li, Xin‐Ai; Ge, Tida; Chen, Zhe; Wang, Si‐Min; Ou, Xiaokun; Wu, Ying; Chen, Hui; Wu, Jianping

doi:10.1002/ldr.3625

Cited by 19 publications

(8 citation statements)

References 46 publications

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“…The soil microbial population promotes plant growth indirectly because it plays a significant role in enhancing fertility and productivity. As the soil microbial community play an important role in improving fertility and productivity, it indirectly influences plant growth [61]. Soil organisms, particularly microorganisms, play a significant role in plant productivity and health, as well as in nutrient cycling.…”

Section: Impact Of Agroforestry On Soil Biotamentioning

confidence: 99%

Agroforestry Systems for Soil Health Improvement and Maintenance

et al. 2022

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Agroforestry integrates woody perennials with arable crops, livestock, or fodder in the same piece of land, promoting the more efficient utilization of resources as compared to monocropping via the structural and functional diversification of components. This integration of trees provides various soil-related ecological services such as fertility enhancements and improvements in soil physical, biological, and chemical properties, along with food, wood, and fodder. By providing a particular habitat, refugia for epigenic organisms, microclimate heterogeneity, buffering action, soil moisture, and humidity, agroforestry can enhance biodiversity more than monocropping. Various studies confirmed the internal restoration potential of agroforestry. Agroforestry reduces runoff, intercepts rainfall, and binds soil particles together, helping in erosion control. This trade-off between various non-cash ecological services and crop production is not a serious constraint in the integration of trees on the farmland and also provides other important co-benefits for practitioners. Tree-based systems increase livelihoods, yields, and resilience in agriculture, thereby ensuring nutrition and food security. Agroforestry can be a cost-effective and climate-smart farming practice, which will help to cope with the climate-related extremities of dryland areas cultivated by smallholders through diversifying food, improving and protecting soil, and reducing wind erosion. This review highlighted the role of agroforestry in soil improvements, microclimate amelioration, and improvements in productivity through agroforestry, particularly in semi-arid and degraded areas under careful consideration of management practices.

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Section: Impact Of Agroforestry On Soil Biotamentioning

confidence: 99%

Agroforestry Systems for Soil Health Improvement and Maintenance

et al. 2022

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“…In agroforestry systems, litterfalls are frequently ideal substrates for microbial activities (Surki et al, 2021). The soil microbes regulate C and N cycles in the soil, stimulated by accumulation of the litterfalls and organic materials (Li et al, 2020;Ma et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Microbial Biomass and Soil Respiration Response to Pruning and Fertilization Practices in Coffee-Pine Agroforestry

Azizah¹,

Prayogo²,

Kurniawan³

et al. 2023

J. Ecol. Eng.

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Pruning and fertilization practices plays an important role in coffee plantation, used to maintain soil quality and coffee productivity. However, the impact of pruning and fertilization practices on soil microbial activity under coffee-based agroforestry are poorly understood. The aimed of this study was to analyze the response of soil microbial properties (i.e., soil microbial biomass C (SMBC) and soil respiration rates (SR)) to pruning and fertilization management in coffee-based agroforestry in UB (Universitas Brawijaya) Forest. A split-plot design with eight treatments and three replications were used in this experiment. The main-plot factor consisted of two types of pruning (Pruning and Bending), and the sub-plot factor consisted of four types of fertilization (i.e., no fertilizer (NF), 100% chicken manure (MN), 50% chicken manure + 50% NPK-inorganic (MN+NPK), and 100% NPKinorganic (NPK)). The result showed that there was a significantly different (p<0.05) in the soil microbial biomass C and soil respiration after the application of fertilizer. The addition of chicken manure (MN and MN+NPK treatment) could enhance the soil microbial biomass and soil respiration, compared to the NF treatment under different pruning practices. The level of soil pH in MN were highest and significantly different with NPK treatment, showed that the application of chicken manure had a potential to neutralize the soil acidity. Metabolic quotient (qCO 2 ) showed highest in the NF treatment as compared to the other treatments. The soil respiration had positive correlation (p<0.05) with SMBC, while SMBC had negative correlation (p<0.01) with qCO 2 .

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“…To this end, soil samples were extracted using 2 M KCl for 1 h and measured using a continuous‐flow injection analyzer (SmartChem 200) according to the manufacturer's instructions (Joseph & Henry, 2008). The soil mineral N (Nmin) stock was estimated by multiplying the concentrations of (NO 3 − ‐N and NH 4 + ‐N), soil sampling depth, and bulk density (Han et al, 2019; Li et al, 2020).…”

Section: Methodsmentioning

confidence: 99%

Tillage with straw incorporation reduces the optimal nitrogen rate for maize production by affecting crop uptake, utility efficiency, and the soil balance of nitrogen

Wang

Lian

et al. 2023

Land Degrad Dev

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Understanding the combined effects of tillage and straw incorporation on grain yield and nitrogen (N) fertilizer utilization is vital for sustainable agriculture in northeastern China. How various tillage patterns with straw incorporation affect soil N balance and optimal N rate for crop production remains largely unknown. A four‐year (2015–2018) field experiment was conducted to assess the impact of rotary tillage with maize straw incorporation (RTS) and plough tillage with straw incorporation (PTS) combined with different N fertilizer rates (0, 112, 187, 262, and 337 kg N ha−1) on maize yield, N uptake, soil N balance, nitrogen use efficiency, and optimal N rate. In general, higher straw N uptake and lower N partial factor productivity, N use efficiency, and recovery of applied N in grains were obtained under PTS than under RTS. Moreover, grain yield and both straw and grain N uptake increased with the N application rate. However, no further increase in grain yield was observed when the applied N exceeded 187 kg N ha−1. PTS resulted in a higher level of unaccounted N from applied N fertilizer (38–81 kg N ha−1) than RTS. A high N fertilizer input (>262 kg N ha−1) combined with straw incorporation resulted in a high soil mineral N profit and substantially increased unaccounted N (614–715 kg N ha−1) over the four‐year field trial period. The optimal N input required for the highest maize yield could be reduced by 35.0%–44.6% using tillage with straw return. Nevertheless, PTS was more effective than RTS at lowering the optimal N application rate. Overall, the results of this short‐term maize field study conducted in northeastern China suggest that the amount of N fertilizer input required for maize production could be reduced by using tillage with continuous straw incorporation.

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Enhancement of soil carbon and nitrogen stocks by abiotic and microbial pathways in three rubber‐based agroforestry systems in Southwest China

Cited by 19 publications

References 46 publications

Agroforestry Systems for Soil Health Improvement and Maintenance

Agroforestry Systems for Soil Health Improvement and Maintenance

Microbial Biomass and Soil Respiration Response to Pruning and Fertilization Practices in Coffee-Pine Agroforestry

Tillage with straw incorporation reduces the optimal nitrogen rate for maize production by affecting crop uptake, utility efficiency, and the soil balance of nitrogen

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