Impact of tillage on physical characteristics in a Mollisol of Northeast China

Chen, X. W.; Liang, Aizhen; Zhang, X. P.; Wei, Sun

doi:10.17221/245/2014-pse

Cited by 20 publications

(4 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, this improvement facilitated organic matter accumulation and ultimately increased buckwheat yield. Notably, these results align with He's (2015) investigation on light utilisation and alfalfa‐related characteristics.…”

Section: Discussionsupporting

confidence: 87%

Combining Desulfurisation Gypsum and Polyacrylamide to Reduce Soil Salinity and Promote Buckwheat Photosynthesis

Tao,

Zhao,

Ning

et al. 2024

J Agronomy Crop Science

View full text Add to dashboard Cite

Soil salinisation poses a significant threat to global agricultural production and food security. China is among the countries most severely impacted by soil salinisation. To investigate the improvement technology for saline–alkali stress in buckwheat, a typical multigrain crop in northwest China, a coupling regulation study using desulfurisation gypsum and polyacrylamide (PAM) was conducted in 2019 and 2020. Desulfurisation gypsum was applied at 0, 5.5, 11, 16.5 and 22 kg·ha−1, while PAM was applied at 0, 15, 30, 45 and 60 kg·ha−1. The results demonstrated that applying 11 t·ha−1 desulfurisation gypsum and 30 kg·ha−1 PAM effectively reduces soil salinity and pH, averaging 81.79% and 6.07%, respectively. Furthermore, it did not cause soil heavy metal pollution and created the best soil environment for buckwheat growth. Among the models tested, the nonrectangular hyperbolic model was the most accurate in describing buckwheat's photosynthetic light response. The optimal treatment for achieving the best photosynthetic performance—measured by apparent quantum efficiency, maximum net photosynthetic rate, light compensation point, light saturation point, dark respiration rate, stomatal conductance, intercellular CO2 concentration, transpiration rate, leaf water use efficiency and yield—was achieved through applying 11 t·ha−1 desulfurisation gypsum and 30 kg·ha−1 PAM. Therefore, desulfurised gypsum and PAM should be applied at 11 t·ha−1 and 30 kg·ha−1, respectively, to improve buckwheat's adaptability to different light intensities while promoting its photosynthetic response in saline–alkali soils. This study provides an effective technical scheme for reducing salt and promoting the growth of crops under salinity stress, which is of great significance for improving salinity land in arid areas.

show abstract

Section: Discussionsupporting

confidence: 87%

Combining Desulfurisation Gypsum and Polyacrylamide to Reduce Soil Salinity and Promote Buckwheat Photosynthesis

Tao,

Zhao,

Ning

et al. 2024

J Agronomy Crop Science

View full text Add to dashboard Cite

show abstract

“…Despite a high content of organic carbon, the soils are very weak in soil structure in May when plants and crops start to grow due to the strong freezing and thawing cycles in winter and early spring (Li & Fan, 2014;Ma et al, 2019;Wang et al, 2012). The soil bulk density can change dramatically from 1.01 Mg m À3 (total porosity >64%) in May to 1.40 Mg m À3 in August due to gravity and mechanical compaction during maize cropping (Chen et al, 2014;Jiang et al, 2018). Due to the high clay content, soil water infiltration rate at zero tension was reported to be as low as 25 Â 10 À6 m s À1 in May and August irrespective of the difference in soil bulk density (Jiang et al, 2018).…”

Section: Gully Erosion Rates and Driving Forcesmentioning

confidence: 99%

A case‐study on history and rates of gully erosion in Northeast China

Wen

Kasielke

et al. 2021

Land Degrad Dev

View full text Add to dashboard Cite

Mollisols are of major importance for food security worldwide but are increasingly degraded by soil erosion. Mollisols in Northeast China have been converted into agricultural use only since the 19th century, but gullies are widely distributed. Gully erosion history, rates, and causes in this region remained unclear. We chose a study area with landforms and land-use history typical for the central Mollisol region of Northeast China to estimate the initiation years and rates of gully erosion from 1968 to 2018 using aerial and satellite imageries. The outlet fan deposits of a large gully system were dated by Cesium-137 ( 137 Cs) and artifacts. Local farmers were interviewed to verify the results. Gully volumes were measured by a structure-from-motion technique using photos taken from an unmanned aerial vehicle. Our results showed that gully systems had already appeared on the steep slopes and along unpaved roads in 1968. They had become larger and more complex in 2018 by the upslope retreat of the main gullies and side gully formation. Gully incision started in the 1950s and 1960s when the original grassland and forest were completely converted into arable land. From 1968 to 2018, the gully density increased from 1.2 to 2.3 km km À2 and the gully heads retreated at speeds from 1.5 to 2.5 m yr À1 . The soil loss from gully erosion ranged from 25.7 to 44.7 Mg yr À1 ha À1 . These data demonstrate the severity of gully erosion in the Mollisol region of Northeast China and underline the importance of appropriate countermeasures.

show abstract

“…Chen et al [9] observed that NT led to significant BD increment and a significantly lower soil macroporosity than CT at 0-20 cm, while Jabro et al [24] found that ST-IR reduced soil compaction, consequently leading to increased total porosity and lower BD than NT. Similar results were found in our study; significant greater BD in CT-BR, ST-BR, and NT were observed compared to that in ST-IR and CT-IR at a depth of 0-10 cm during the seed emergence period.…”

Section: Effects Of Tillage On Soil Propertiesmentioning

confidence: 99%

“…NT is an important conservation tillage practice, which can be effective in controlling soil erosion, improving soil quality, and reducing input costs and labor needs in this region [3,7]. However, some researchers observed that NT can result in lower crop yields because NT soils with crop residues tend to stay wetter and cooler longer in spring [8,9], which could potentially lead to delay seed germination, impeded root growth, and crop nutrient uptake, and result in reduced yields compared to CT [10][11][12]. Hence, it is hard for local farmers to accept NT as a priority or major pattern of cultivation in farmland.…”

Section: Introductionmentioning

confidence: 99%

Influence of Tillage on the Mollisols Physicochemical Properties, Seed Emergence and Yield of Maize in Northeast China

et al. 2021

View full text Add to dashboard Cite

Tillage practices are critical for sustaining soil quality necessary for successful crop growth and productivity, but there are only few studies for strip tillage (ST) in the Mollisols region of Northeast China at present. A long-term (≥10-year) study was carried out to investigate the influence of within the tilled row (IR) and between rows (BR) in ST (10-year), conventional tillage (CT, 14-year) and no tillage (NT, 14-year) treatments on soil physicochemical properties. Soil samples were taken in May of 2019 at 0–5, 5–10, 10–20 and 20–30 cm depths and used to analyze bulk density (BD), soil aggregate distribution and stability, and soil organic carbon (SOC). Meanwhile, our study also explored the differences in seed emergence, soil moisture, and temperature during the seed emergence period, and yield of maize (Zea mays L.) among the different treatments. Similar soil properties were observed between ST-BR and NT, which showed they had a significantly greater BD, >0.25 mm water stable aggregate content (WR0.25) (especially in the amount of >2 mm and 1–2 mm size proportion), aggregate stability, and SOC than ST-IR and CT-IR at a depth of 0–20 cm. By improving soil conditions of seedbed, ST-IR and CT-IR increased soil temperature above NT by 1.64 °C and 1.80 °C, respectively, and ST-IR had a slight greater soil moisture than CT-IR in the top 10 cm layer during the seed emergence period. Late maize seed emergence was observed NT in than ST-IR and CT-IR and the average annual yields in ST were slightly greater than NT and CT, but the differences were not significant. Our results also showed that CT-BR had a poor soil structure and lower SOC than other treatments at 0–30 cm depth. We conclude from these long-term experimental results that ST could improve soil water-heat conditions to promote seed germination, maintain soil structure, and increase the maize yield and it should be applied in the Mollisols region of Northeast China.

show abstract

Impact of tillage on physical characteristics in a Mollisol of Northeast China

Cited by 20 publications

References 23 publications

Combining Desulfurisation Gypsum and Polyacrylamide to Reduce Soil Salinity and Promote Buckwheat Photosynthesis

Combining Desulfurisation Gypsum and Polyacrylamide to Reduce Soil Salinity and Promote Buckwheat Photosynthesis

A case‐study on history and rates of gully erosion in Northeast China

Influence of Tillage on the Mollisols Physicochemical Properties, Seed Emergence and Yield of Maize in Northeast China

Contact Info

Product

Resources

About