Canadian Journal of Soil Science最新文献_第3页

Influence of landscape position and climatic seasonality on soil water and gas conductivity properties in agricultural soils 景观位置和气候季节对农业土壤水分和气体传导特性的影响

4区农林科学

Canadian Journal of Soil Science Pub Date : 2023-10-20 DOI: 10.1139/cjss-2022-0107

I. Widurska, S.K. Frey, D.R. Lapen, D.L. Rudolph

{"title":"Influence of landscape position and climatic seasonality on soil water and gas conductivity properties in agricultural soils","authors":"I. Widurska, S.K. Frey, D.R. Lapen, D.L. Rudolph","doi":"10.1139/cjss-2022-0107","DOIUrl":"https://doi.org/10.1139/cjss-2022-0107","url":null,"abstract":"Agricultural landscape management and climate seasonality can influence soil structure, hydraulic conductivity, and air permeability within the context of soil water and soil gas mobility. To investigate this, in situ and laboratory-based data were collected from three agricultural landscape positions within a watershed in eastern Ontario, Canada during a growing season. Macropore classification, water infiltration tests, and air permeability measurements were conducted in situ and standard soil characterizations were carried out on soil samples. Hydraulic conductivity of the soil matrix, based on grain size data, indicated that the highest values were consistently measured in the B horizon at each landscape setting. Macropores were found to be more abundant within uncultivated drainage ditch bank soils, compared to the adjacent cropped fields. Macropores in the ditch bank soils were exclusively consisted of circular biopores, while both circular and linear macropores were observed in the cultivated field soils. Air permeability, vertical hydraulic conductivity, and horizontal hydraulic conductivity were also greater in the uncultivated soils, relative to the cultivated soils. Field saturated hydraulic conductivity measurements offered evidence of anisotropy, likely due to the vertical nature of the macropore features. Macropore disposition and extent varied over the growing season, especially in the cultivated field soils where tillage and field trafficking are physically disruptive. Seasonality of macropore development will influence temporal changes in advection-based mass exchange of gas and water in the vadose zone. Modeling of mass exchange in agricultural soils should consider time variability in macroporosity to more realistically characterize infiltration and soil gas emissions.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135617334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Management Impacts on Organic Carbon Under Continuous Perennial Grass, Perennial Grass-Legume Mixture, And Annual Cereals On A Thick Black Chernozemic Soil 黑黑土厚黑土上连续多年生草、多年生草-豆科杂交种和一年生谷物下有机碳的管理影响

4区农林科学

Canadian Journal of Soil Science Pub Date : 2023-09-27 DOI: 10.1139/cjss-2023-0041

Emmanuel Mapfumo, Vern S Baron, R. L. Lemke, M. Anne Naeth, David S. Chanasyk, A. Campbell Dick

{"title":"Management Impacts on Organic Carbon Under Continuous Perennial Grass, Perennial Grass-Legume Mixture, And Annual Cereals On A Thick Black Chernozemic Soil","authors":"Emmanuel Mapfumo, Vern S Baron, R. L. Lemke, M. Anne Naeth, David S. Chanasyk, A. Campbell Dick","doi":"10.1139/cjss-2023-0041","DOIUrl":"https://doi.org/10.1139/cjss-2023-0041","url":null,"abstract":"Impacts of annual and perennial pasture management on soil organic carbon (SOC) and equivalent SOC stocks (equal soil mass basis) were investigated in two trials [(CAESA (1994 to 1997) and BMP (2008 to 2012) trials] conducted on the same experimental paddocks at Lacombe, Alberta. The original site was broken from perennial grass in 1992 and the CAESA trial established in 1993. Between 1994 and 1997, half of the paddocks included winter triticale and a mixture of triticale and spring barley; half included smooth and meadow bromegrass; and each paddock was light, medium, or heavily grazed. The BMP trial (2008 to 2012) on the same paddocks included fertilized, direct seeded barley as silage; grazing and haying of unfertilized meadow bromegrass, fertilized meadow bromegrass, and meadow bromegrass and alfalfa mixture; and unfertilized oldgrass that was continuous since 1994. Between trials (1998 to 2007) all paddocks received no fertilizer. In the 0-15 cm depth SOC under oldgrass was constant between 1994 and 2012 and averaged 88 Mg C ha-1. Under barley silage SOC decreased from 89 to 72 Mg C ha-1 by 2012. Between 1994 and 2012 SOC decreased in all treatments re-established on original annual forage (1994 to 1998) but not to the level of barley silage. Light fraction carbon (LFC) was highest under oldgrass and lowest under barley silage. Overall, oldgrass with no fertilizer inputs maintained a constant SOC, although annuals reduced SOC stocks. Re-establishment of perennial grass with grazing may therefore reduce SOC loss whereas haying perennial grass may not.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135535713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An economic review of conservation tillage practices: select case studies from the eastern Prairies of Canada 保护性耕作实践的经济回顾:加拿大东部大草原的案例研究& # x0D;

4区农林科学

Canadian Journal of Soil Science Pub Date : 2023-09-27 DOI: 10.1139/cjss-2023-0053

Mohammad Khakbazan, Richard Carew, Stephen Crittenden, Ramona Mohr, Dilip Kumar Biswas

{"title":"An economic review of conservation tillage practices: select case studies from the eastern Prairies of Canada ","authors":"Mohammad Khakbazan, Richard Carew, Stephen Crittenden, Ramona Mohr, Dilip Kumar Biswas","doi":"10.1139/cjss-2023-0053","DOIUrl":"https://doi.org/10.1139/cjss-2023-0053","url":null,"abstract":"This study reviewed the literature on soil conservation practices and analyzed four case studies in different soil zones and diverse cropping systems of Manitoba (MB), western Canada to show the potential impacts of no-till/reduced tillage practices on field crop economic performance. Primary and secondary data, such as tillage type, input cost, crop price, crop yield, and net revenue (NR) were used to assess the tillage practices in each of the case studies. Based on crop economic analysis over nine years (1998-2006) in Southern Manitoba, cereal-based (spring wheat (Triticum aestivum L.), barley (Hordeum vulgare L.) cropping systems were more profitable under conservation tillage than conventional tillage practices, whereas the opposite was true for oilseed crops (e.g., canola, Brassica napus L.). In plot-scale studies at Portage, MB, low intensity tillage increased NR for soybean (Glycine max L.) in 1 of 3 years when compared to high intensity tillage and there appeared to be lower NRs for canola as tillage intensity increased. However, in studies near Brandon, MB, NRs for a 4-year wheat-pea (Pisum sativum L.) rotation were lower in low disturbance seeding than high disturbance seeding systems for a clay loam soil but similar for a loam soil. While no single tillage system was found to consistently provide the highest NR based on these case studies, these findings provide insights into some of the factors behind decisions surrounding tillage management and the rationale for the continued use of a combination of conventional, reduced and zero-till systems in the eastern Prairies of Canada.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135537428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tillage and Nitrogen Rate Effects on Winter Wheat Yield in a Wheat-Sorghum Rotation 小麦-高粱轮作中耕作方式和施氮量对冬小麦产量的影响

IF 1.7 4区农林科学

Canadian Journal of Soil Science Pub Date : 2023-09-08 DOI: 10.1139/cjss-2023-0028

M. Majrashi, A. Obour, C. Moorberg, R. Lollato, J. Holman, Juan Du, M. Mikha, Y. Assefa

{"title":"Tillage and Nitrogen Rate Effects on Winter Wheat Yield in a Wheat-Sorghum Rotation","authors":"M. Majrashi, A. Obour, C. Moorberg, R. Lollato, J. Holman, Juan Du, M. Mikha, Y. Assefa","doi":"10.1139/cjss-2023-0028","DOIUrl":"https://doi.org/10.1139/cjss-2023-0028","url":null,"abstract":"The objectives of this study were to quantify long-term tillage practice and nitrogen (N) fertilizer rate effects on yield and N use in a winter wheat (Triticum aestivum L) -grain sorghum (Sorghum bicolor L. Moench) -fallow (W-S-F) rotation. The experimental design was a randomized complete block with split-split-plot arrangement. The main plot treatments were crop rotation phases, W-S-F, S-F-W, and F-W-S. The sub-plots were tillage practices, i.e., conventional tillage (CT), reduced tillage (RT), and no-tillage (NT). And the sub-sub-plot treatments were N rates 0, 45, 90, and 134 kg ha-1. Wheat yield increased at rates of 15.6, 9.3, 22.8, and 25.7 kg ha-1 for a kg N ha-1 increase in very low, low, high, and very high yielding environments (average yields of ~2000, 2500, 2800, and 4400 kg ha-1), respectively. On average, winter wheat yields were 7-9% greater for CT compared with both NT and RT. Winter wheat removed about 52 kg N ha-1 from the unfertilized control treatment but N uptake varied by N rate and growing conditions. Nitrogen use efficiency, N agronomic efficiency, and applied N recovery decreased as N rate increased. Across environments, wheat yield increased by 16, 20, and 17 kg ha-1 for each additional kg ha-1 N applied under CT, NT and RT, respectively, and additional 2-2.5 kg ha-1 yield increases for a mm increase in fallow precipitation. We concluded that wheat yield response to N is highly dependent on growing condition and NT required greater N fertilization than CT and RT for similar yields.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41514373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Leaching of base and metal cations from litter and soils vary in two forest stands with different tree species 在不同树种的两种林分中，凋落物和土壤中碱和金属阳离子的淋失情况不同

IF 1.7 4区农林科学

Canadian Journal of Soil Science Pub Date : 2023-08-21 DOI: 10.1139/cjss-2023-0046

Xinyao Sun, Xinying Zhang, Fuzhong Wu, Qiuxia Wu, Jingjing Zhu, X. Ni

{"title":"Leaching of base and metal cations from litter and soils vary in two forest stands with different tree species","authors":"Xinyao Sun, Xinying Zhang, Fuzhong Wu, Qiuxia Wu, Jingjing Zhu, X. Ni","doi":"10.1139/cjss-2023-0046","DOIUrl":"https://doi.org/10.1139/cjss-2023-0046","url":null,"abstract":"Understanding the distribution of cations in forest soils is important for forest management. Here we evaluated the leaching of cations, potassium (K+), sodium (Na+), calcium (Ca2+), magnesium (Mg2+), iron (Fe3+), aluminium (Al3+), and manganese (Mn2+) from litter through soils in two forest stands with different tree species. We incubated Castanopsis carlesii leaf litter in a Castanopsis carlesii stand and Cunninghamia lanceolata needle litter in a Cunninghamia lanceolata stand using a microcosm method with monthly collections of litter and soil leachates, and the concentrations of cations and fluxes of these cations were assessed separately. We found that more Ca2+ but less Na+, Mg2+ and Fe3+ fluxes in litter leaching solutions in Cunninghamia lanceolata than in Castanopsis carlesii stand because of their different initial concentrations in fresh litter. Although cations leached from leaf litter were differed among tree species, the leaching fluxes did not vary between stands. Moreover, annual fluxes of cations leached from soils were significantly higher than those from leaf litter, leading to a net loss of soil nutrients to downstream environment. Therefore, the results suggest that reforestation with mixed stands by introducing broadleaved trees in Chinese fir monoculture plantations might reduce soil nutrient loss through the leaching pathway.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45712003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

No differences in soil structure under winter wheat grown in different crop rotational positions 不同轮作位置冬小麦土壤结构无差异

IF 1.7 4区农林科学

Canadian Journal of Soil Science Pub Date : 2023-08-17 DOI: 10.1139/cjss-2023-0030

Jessica Arnhold, D. Grunwald, H. Kage, H. Koch

{"title":"No differences in soil structure under winter wheat grown in different crop rotational positions","authors":"Jessica Arnhold, D. Grunwald, H. Kage, H. Koch","doi":"10.1139/cjss-2023-0030","DOIUrl":"https://doi.org/10.1139/cjss-2023-0030","url":null,"abstract":"Yield decline in wheat grown after wheat is frequently attributed to fungal disease occurrence, but it is also found without visible disease infection. Thus it is hypothesized, that other factors such as N supply or soil structural degradation may lead to wheat yield decline when grown after wheat. The aims of this study were to analyze if (i) the crop rotational position of winter wheat causes differences in soil structure at the beginning of the growing season and (ii) the soil structure is related to differences in wheat biomass formation by this date. Different soil structural properties under winter wheat as well as total aboveground biomass of wheat grown in different crop rotational positions (monoculture, first, second and third wheat after oilseed rape) were investigated in two long-term field experiments with contrasting soil texture. At both field sites no significant effect of the crop rotational position in any of the analyzed soil structural parameters was found. Wheat biomass in spring was on average 54% higher for wheat grown after oilseed rape compared to second and third wheat after oilseed rape or monoculture. In conclusion, growth reduction of wheat cultivated after wheat was not linked to soil structure as measured in spring.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44835485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Enhancement of the three-dimensional interfacial layer of a rocky desertification soil using a red mud-based fertilizer 利用红泥基肥料增强石漠化土壤的三维界面层

IF 1.7 4区农林科学

Canadian Journal of Soil Science Pub Date : 2023-08-11 DOI: 10.1139/cjss-2023-0013

Jun-Shiang Cheng, Mingqin Huang, Xiong Yan

{"title":"Enhancement of the three-dimensional interfacial layer of a rocky desertification soil using a red mud-based fertilizer","authors":"Jun-Shiang Cheng, Mingqin Huang, Xiong Yan","doi":"10.1139/cjss-2023-0013","DOIUrl":"https://doi.org/10.1139/cjss-2023-0013","url":null,"abstract":"Abstract Red mud, a solid waste of alumina extraction from bauxite, was used as a compost carrier to prepare a geological fertilizer. It was amended at proportions of 0, 5%, 10%, 15% and 50% by weight (g/kg) to improve a rocky desertification soil (classified as lime soil) productivity. Through the simulation of different rain intensity (15, 50, and 90 mm/h) with three precipitation rates (1000, 2000, 3000 mm), soil chemical and physical properties, such as soil organic matter (SOM), total nitrogen (TN), ammonia nitrogen (AN), nitrate nitrogen (NN), total potassium (TK), available potassium (AK), total phosphorus (TP), available phosphorus (AP), bulk density and aggregates were tested and analyzed. In addition, a three-dimensional evaluation and analysis of the improvement attributed to the geological fertilizer was conducted. The results showed that the soil loss could be maintained in the range of 19%–72% under rainfall intensities. In addition, the reduction rate of soil clay content was less than 20%, and the lowest reduction rate of SOM, TN, TP and other nutrient was only 4% at the application rate of 5%–50%. The BD of the 0–20 cm top soil decreased progressively from 1.2 to 0.9 g/cm3, while the water-stable aggregate volume increased by 45%–76%. The red mud-based fertilizer enhanced the ability of the rocky desertification soil to resist rainfall erosion and infiltration in amended soil profiles. Considering the trends of nutrient losses and effects on the soil structure, the application rate of 15% by weight (g/kg) was best for improving the rocky desertification soil productivity.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44507015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of saline–alkaline stresses on the interspecific competition between Aegilops tauschii and Triticum aestivum 盐碱胁迫对灰山羊草与小麦种间竞争的影响

IF 1.7 4区农林科学

Canadian Journal of Soil Science Pub Date : 2023-08-02 DOI: 10.1139/cjss-2022-0124

Ning Wang, Hao Chen

{"title":"Effect of saline–alkaline stresses on the interspecific competition between Aegilops tauschii and Triticum aestivum","authors":"Ning Wang, Hao Chen","doi":"10.1139/cjss-2022-0124","DOIUrl":"https://doi.org/10.1139/cjss-2022-0124","url":null,"abstract":"Soil salinization has produced severe consequences on global agricultural production and ecological environment. Based on the features of saline soils in China, through mixed NaCl, NaHCO3, Na2SO4, and Na2CO3 at varying ratios to simulate the salinity–alkalinity stress and conducted a controlled pot experiment using De Wit replacement method. The effects of salinity–alkalinity stress on the growth of Aegilops tauschii and its competition with wheat were explored to provide a reference for the study of invasion mechanism of A. tauschii. The result showed that, the salinity–alkalinity stress inhibited the growth and development of both the species, which was reflected in plant height, leaf area and total biomass indicators. Secondly, the tolerance of both plant species to salinity–alkalinity stress was improved by increasing the superoxide dismutase (SOD) activity and the proline content. However, as the salinity–alkalinity stress was exacerbated, the relative conductivity and thiobarbituric acid (TBARS) content increased significantly in both the species. As suggested by the level of increase in SOD activity, proline content, relative conductivity, and TBARS content, A. tauschii was more tolerant to the salinity–alkalinity stress than wheat. Finally, it can be seen from the value of the competition balance index, A. tauschii was still more competitive than wheat even under salinity–alkalinity stress. In summary, A. tauschii was more tolerant of the salinity–alkalinity stress than wheat through the favorable adjustment of morphology, biomass allocation pattern, and physiological features, which is expected to increase its invasion damage to wheat.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48074674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Developing scoring functions based on soil texture to assess agricultural soil health in Quebec, Canada 开发基于土壤质地的评分功能以评估加拿大魁北克省的农业土壤健康

IF 1.7 4区农林科学

Canadian Journal of Soil Science Pub Date : 2023-07-26 DOI: 10.1139/cjss-2022-0116

Mélanie Gauthier, R. Hogue, Joël D’Astous-Pagé, Michel Champagne, C. Halde

{"title":"Developing scoring functions based on soil texture to assess agricultural soil health in Quebec, Canada","authors":"Mélanie Gauthier, R. Hogue, Joël D’Astous-Pagé, Michel Champagne, C. Halde","doi":"10.1139/cjss-2022-0116","DOIUrl":"https://doi.org/10.1139/cjss-2022-0116","url":null,"abstract":"Adoption of soil health indicators to access physical, biological, and chemical properties involves adapting their interpretation for a specific region using scoring functions. Accordingly, we used data provided from 1166 soil samples distributed between fine, medium, and coarse-textured soils collected in agricultural areas across the province of Quebec, Canada, and analyzed for 15 soil health indicators. Scoring functions were calculated according to the means and standard deviations obtained for each soil health indicator by textural group. Three scoring types were used: “more-is-better”, “less-is-better”, and “optimum is best”. The results showed that 12 indicators were significantly influenced by soil texture and need separate scoring functions, except for wet aggregate stability, penetration resistance of the surface hardness (0-15 cm) and pH. This led to the development of one to three scoring functions for each soil health indicator. Correlation analysis between soil health indicators was also investigated to better understand relationships between soil physical, biological, and chemical properties. We observed that soil biological indicators were moderately to strongly correlated with each other (r = 0.59-0.74) and with soil physical indicators (r = 0.60-0.76). Overall, the results of this study led to the development of new scoring functions based on soil texture to interpret soil health indicators objectively and accurately for the benefit of Quebec farmers and agricultural stakeholders. The findings of this study demonstrated the need to adapt scoring functions to better account for the impact of regional factors on agricultural soils for the interpretation of soil health indicators.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44798369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Response of soil moisture and water use efficiency to straw mulching amount and mulching period in black soil zone of northeast China 东北黑土区土壤水分利用效率对秸秆覆盖量和覆盖期的响应

IF 1.7 4区农林科学

Canadian Journal of Soil Science Pub Date : 2023-07-26 DOI: 10.1139/cjss-2023-0018

Jilong Liu, Qianqian Liu, Jiawen Li, Lingling Zhang, Xiaoqiang Cao, Jizhen Li, Ran Cao, Hang Lv, Zhizhuo Wang, Z. Dong

{"title":"Response of soil moisture and water use efficiency to straw mulching amount and mulching period in black soil zone of northeast China","authors":"Jilong Liu, Qianqian Liu, Jiawen Li, Lingling Zhang, Xiaoqiang Cao, Jizhen Li, Ran Cao, Hang Lv, Zhizhuo Wang, Z. Dong","doi":"10.1139/cjss-2023-0018","DOIUrl":"https://doi.org/10.1139/cjss-2023-0018","url":null,"abstract":"Abstract To reveal the mechanisms of straw mulching amounts and mulching periods on soil moisture in the black soil zone of Northeast China. Three types of straw mulching (0.4, 0.8, and 1.2 kg/m2) and two mulching periods (sowing stage and three-leaf stage) were set up as interactive experiments, and no straw mulching was used as the control (CK) to analyze the response mechanisms of soil moisture content, water consumption, and water use efficiency to straw mulching periods and mulching amounts at different depths. The results showed that straw mulching improved the moisture storage capacity compared with no straw mulching, and the straw mulching rate of 0.8 kg/m2 at the three-leaf stage improved the moisture storage capacity and reduced the water consumption capacity compared with the straw mulching at the sowing stage, CK and other straw mulching treatments at the three-leaf stage; the crop yield and water use efficiency increased and then decreased with the increase of straw mulching. The increase of crop yield and water use efficiency under the straw mulching treatments at the three-leaf stage was higher than that under the same straw mulching treatments at the sowing stage. The analysis of the dual effects of straw mulching amounts and mulching periods on moisture gain and loss showed that the straw mulching amounts of 0.8 kg/m2 at the three-leaf stage had the best effect on soil moisture characteristics and water use efficiency.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44845094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0