Greenhouse gas emissions in a spring wheat–field pea sequence under different tillage practices in semi-arid Northwest China

Yeboah, Stephen; Zhang, Renzhi; Cai, Liqun; Min, Song; Li, Lingling; Xie, Junhong; Luo, Zhen; Wu, Jun; Zhang, Jun

doi:10.1007/s10705-016-9790-1

Cited by 46 publications

(52 citation statements)

References 34 publications

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“…These results are consistent with previous studies of Yeboah et al (2016). These findings imply that SS practice is unlikely to increase soil respiration from semiarid agricultural soils, and therefore may have the potential to act as a C sink.…”

supporting

confidence: 93%

Soil respiration and net ecosystem production under different tillage practices in semi-arid Northwest China

Lamptey¹,

Li²,

Xie³

et al. 2017

Plant Soil Environ.

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In semi-arid areas, increasing CO<sub>2</sub> emissions are threatening agricultural sustainability. It is unclear whether different tillage practices without residue returned could help alleviate these issues while increasing crop productivity. This study aimed to quantify soil respiration under conventional tillage (CT); rotary tillage (RT); subsoiling (SS) and no-till (NT), all without residue returned in the Western Loess Plateau. The results showed that SS and NT significantly decreased soil respiration compared to CT, but the effects of SS was the greatest. As a result, SS decreased carbon emission by 22% in 2014 and 19% in 2015 versus CT. The trends of net ecosystem production under different tillage systems were as follows: CT > RT > NT > SS. No-till increased net ecosystem production by 33% in 2014 and 12% in 2015 relative to CT. The SS treatment increased average grain yield by 27% and 23% over CT and RT, and enhanced water use efficiency by an average of 43%. On average, SS increased carbon emission efficiency by 60% and 43% compared to CT and RT, respectively. Thus, subsoiling management strategy is a promising option for the development of sustainable agriculture in semi-arid areas.

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supporting

confidence: 93%

Soil respiration and net ecosystem production under different tillage practices in semi-arid Northwest China

Lamptey¹,

Li²,

Xie³

et al. 2017

Plant Soil Environ.

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“…The findings of this study showed that no tillage with straw retention significantly decreased soil bulk density and boosted soil moisture content compared to conventional tillage with straw removed and no tillage with straw removed at the top soil depth (0-30 cm), and significantly affected the root length, root surface area, root diameter and root volume through the 0-50 cm soil profile. Many studies have demonstrated that excessive soil tillage increases soil bulk density (Fabrizzi et al, 2005;Yeboah et al, 2016), and reduces soil moisture (He et al, 2009;Yeboah et al, 2017). Long-term no tillage treatments has been reported to decreased soil bulk density in the surface layer (Yeboah et al, 2016) and that explained it as a direct consequence to the mulch layer on top of NT soils that provide soil organic matter.…”

Section: Discussionmentioning

confidence: 99%

“…The adoption of conservation agriculture principles as part of a change in management system has been reported to increase crop productivity and water conservation (Huang et al, 2008;Yeboah et al, 2016). It is claimed that conservation tillage can serve as an important management strategy offering many benefits like increasing organic matter content (Yeboah et al, 2016) and soil moisture (Hobbs, 2008) compared to tilled soils.…”

Section: Introductionmentioning

confidence: 99%

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Conservation Tillage Practices Optimizes Root Distribution and Straw Yield of Spring Wheat and Field Pea in Dry Areas

Yeboah¹,

Lamptey²,

Zhang³

2017

JAS

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The objective of this study was to evaluate the effect of conventional tillage with straw removed (T), no tillage with straw removed (NT), no tillage with straw retained on the soil surface (NTS) and conventional tillage with straw incorporated (TS) on soil moisture, root growth and straw yield under rain-fed conditions. Findings of this research show that NTS and to a lesser extent, TS decreased soil bulk density in the 0-10 cm soil depth by approximately 3.35% and 2.75% compared to T and NT in spring wheat and field pea plots respectively. No tillage with straw retained (NTS) had greater soil moisture content (0-30 cm) at jointing, anthesis and milking stages compared with NT and T treatments with average 18.57% and 29.67% increase (P < 0.05) in spring wheat and field pea respectively. Compared with T and NT, root length, root surface area, root diameter and root volume at 0-50 cm soil depth under straw treated soils, especially with no tillage were significantly increased. Root length, surface area and root diameter in the 0-80 cm differed among the treatments in the order of NTS > TS > NT > T at all the sampling stages in both crops. No tillage with straw retention had the greatest straw yield of 4897 kg ha -1 in spring wheat and 2759 kg ha -1 in field pea, representing a significant increase of 20.61% and 22.74% compared to NT and T respectively. These results suggest that NTS could enhance spring wheat and field pea yield and water uptake via stimulating root growth, and therefore a practical way to improve crop productivity.

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“…These practices have worsened soil degradation processes, contributed to the decline of soil carbon and fertility and therefore, may impact microbial community structure. Conservation tillage techniques have been employed to improve soil physicochemical properties and greenhouse gas emissions for sustainable cultivation of spring wheat and field pea (Huang et al, 2013;Yeboah et al, 2016aYeboah et al, , 2016bYeboah et al, 2017) but the rate of adoption is still relatively low in the region. The impact of tillage practices on soil archaea community structure has received low specialised research attention in the study area.…”

Section: Introductionmentioning

confidence: 99%

Effect of Conservational and Conventional Tillage Systems on Functional Soil Archaea Diversity in Wheat-Pea Rotation Field

Essel¹,

Li²,

Deng³

et al. 2017

JAS

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Soil borne archaea in agricultural systems is crucial for cycling of nutrient such as Nitrogen, Carbon and Sulphur. The objective of the study was to assess the effect of different tillage systems on functional archaea diversity in a 15 years cereal-legume rotation field using Illumina sequencing platform for archaea 16S rRNA gene. The treatments in the study included conventional tillage with stubble removed (T), no-till with stubble removed (NT), conventional tillage with stubble incorporated (TS) and no-till with stubble retained (NTS). The results showed that the dominant soil archaea phyla was Crenarchaeota (> 96%), followed by Euryarchaeota with a lower abundance of < 3% and then Parvarchaeota and other bacteria phyla made up < 1% across the treatments and depths. The treatment means were ranked as NT > NTS > TS > T for 16S rRNA number of OTUs, Shannon and Simpson indices calculated for the 0-10cm soil depth. Analysis of factor effect revealed that tillage but not stubble retention or their interaction significantly influenced (P < 0.01 and P < 0.05) 16S rRNA diversity. Non metric Multidimensional Scaling (NMDS) analysis clearly grouped the microbial communities according to depths. Linear Discriminant Analysis Effect Size (LEfSe) identified Crenarchaeota and Thaumarchaeota (to genus level) as significantly enriched clades in 0-10 cm depth of T while Euryarchaeota and Thermoplasmata were significantly enriched in TS. The conservational tillage systems (NT and NTS) promoted even distribution of archaea diversity while conventional tillage systems (T and TS) enriched the archaea communities identified in the study.

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Greenhouse gas emissions in a spring wheat–field pea sequence under different tillage practices in semi-arid Northwest China

Cited by 46 publications

References 34 publications

Soil respiration and net ecosystem production under different tillage practices in semi-arid Northwest China

Soil respiration and net ecosystem production under different tillage practices in semi-arid Northwest China

Conservation Tillage Practices Optimizes Root Distribution and Straw Yield of Spring Wheat and Field Pea in Dry Areas

Effect of Conservational and Conventional Tillage Systems on Functional Soil Archaea Diversity in Wheat-Pea Rotation Field

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