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《农业科学与工程前沿（英文）》 2023年 第10卷 第4期 页码 530-540 doi: 10.15302/J-FASE-2023515
Soil nitrogen mineralization (Nmin) is a key process that converts organic N into mineral N that controls soil N availability to plants. However, regional assessments of soil Nmin in cropland and its affecting factors are lacking, especially in relation to variation in elevation. In this study, a 4-week incubation experiment was implemented to measure net soil Nmin rate, gross nitrification (Nit) rate and corresponding soil abiotic properties in five field soils (A–C, maize; D, flue-cured tobacco; and E, vegetables; with elevation decreasing from A to E) from different altitudes in a typical intensive agricultural area in Dali City, Yunnan Province, China. The results showed that soil Nmin rate ranged from 0.10 to 0.17 mg·kg−1·d−1 N, with the highest value observed in field E, followed by fields D, C, B, and A, which indicated that soil Nmin and Nit rates varied between fields, decreasing with elevation. The soil Nit rate ranged from 434.2 to 827.1 µg·kg−1·h−1 N, with the highest value determined in field D, followed by those in fields E, C, B, and A. The rates of soil Nmin and Nit were positively correlated with several key soil parameters, including total soil N, dissolved organic carbon and dissolved inorganic N across all fields, which indicated that soil variables regulated soil Nmin and Nit in cropland fields. In addition, a strong positive relationship was observed between soil Nmin and Nit. These findings provide a greater understanding of the response of soil Nmin among cropland fields related to spatial variation. It is suggested that the soil Nmin from cropland should be considered in the evaluation of the N transformations at the regional scale.
关键词： cropland gross nitrification rate regulatory factors soil nitrogen mineralization spatial variation
OPPORTUNITIES AND APPROACHES FOR MANIPULATING SOIL-PLANT MICROBIOMES FOR EFFECTIVE CROP NITROGEN USE
《农业科学与工程前沿（英文）》 2022年 第9卷 第3期 页码 333-343 doi: 10.15302/J-FASE-2022450
● Matching nitrification inhibitors with soil properties and nitrifiers is vital to achieve a higher NUE.
关键词： nitrogen microbiome NUE rhizosphere phyllosphere soil food web
《农业科学与工程前沿（英文）》 2022年 第9卷 第3期 页码 396-406 doi: 10.15302/J-FASE-2022456
● Interflow acts as the dominant pathway for N loss loadings.
关键词： improved fertilization regime interflow nitrogen forms nitrogen leaching purple soil sloping cropland
《农业科学与工程前沿（英文）》 2022年 第9卷 第3期 页码 407-424 doi: 10.15302/J-FASE-2022448
● Soil nitrogen fluxes and influencing factors were reviewed in the subtropical hilly regions.
关键词： nitrogen cycling soil nitrogen nitrogen deposition greenhouse gases emission non-point source pollution nitrogen use efficiency
《农业科学与工程前沿（英文）》 2022年 第9卷 第3期 页码 344-355 doi: 10.15302/J-FASE-2022451
● Intercropping change soil bacterial communities in tea plantations.
《农业科学与工程前沿（英文）》 2022年 第9卷 第3期 页码 313-315 doi: 10.15302/J-FASE-2022460
Effects of mulching for water conservation on soil carbon, nitrogen and biological properties
Xiaomin PI, Tongxun ZHANG, Benhua SUN, Quanhong CUI, Yun GUO, Mingxia GAO, Hao FENG, David W. HOPKINS
《农业科学与工程前沿（英文）》 2017年 第4卷 第2期 页码 146-154 doi: 10.15302/J-FASE-2017136
关键词： biomass carbon mulch nitrogen plastic films soil straw water storage
ECOLOGICAL EFFECTS OF NITROGEN DEPOSITION ON URBAN FORESTS: AN OVERVIEW
《农业科学与工程前沿（英文）》 2022年 第9卷 第3期 页码 445-456 doi: 10.15302/J-FASE-2021429
● Patterns and effects of N deposition on urban forests are reviewed.
关键词： biodiversity carbon sequestration nitrogen deposition nutrient imbalance soil acidification urban forest
《农业科学与工程前沿（英文）》 2023年 第10卷 第4期 页码 541-552 doi: 10.15302/J-FASE-2023518
Agricultural non-point source pollution is increasingly an important issue affecting surface water quality. Currently, the majority of the studies on nitrogen loss have focused on the agricultural field scale, however, the response of surface water quality at the watershed scale into the nitrogen loss at the field scale is poorly understood. The present study systematically reviewed the critical processes and major factors that nitrogen transport from farm fields to surface water bodies. The critical processes of farmland nitrogen entering surface water bodies involve the processes of nitrogen transport from farmland to ditches and the transformation processes of nitrogen during migration in ditches/rivers. Nitrogen transport from farmland to ditches is one of the prerequisites and critical processes for farmland nitrogen transport to surface water bodies. The transformation of nitrogen forms in ditches/rivers is an intermediate process in the migration of nitrogen from farmland to surface water bodies. Nitrogen loss from farmland is related to soil storage and exogenous inputs. Therefore, nitrogen input management should not only consider the current input, but also the contribution of soil storage due to the historical surpluses. Ditches/rivers have a strong retention capacity for nitrogen, which will significantly affect the process of farmland nitrogen entering surface water bodies. The factors affecting nitrogen transformation in river/ditches can be placed in four categories: (1) factors affecting hydraulic retention time, (2) factors affecting contact area, (3) factors affecting biological activity, and (4) forms and amount of nitrogen loading to river/ditches. Ditch systems are more biologically (including plants and microbes) active than rivers with biological factors having a greater influence on nitrogen transformation. When developing pollution prevention and control strategies, ecological ditches can be constructed to increase biological activity and reduce the amount of surplus nitrogen entering the water body. The present research should be valuable for the evaluation of environment impacts of nitrogen loss and the non-point source pollution control.
关键词： nitrogen loss from soil transformation farm field scale watershed scale
A NEW APPROACH TO HOLISTIC NITROGEN MANAGEMENT IN CHINA
《农业科学与工程前沿（英文）》 2022年 第9卷 第3期 页码 490-510 doi: 10.15302/J-FASE-2022453
● Progress on nitrogen management in agriculture is overviewed in China.
关键词： 4R technology food chain N management N use efficiency soil-crop system sustainable management
Red soil for sediment capping to control the internal nutrient release under flow conditions
Lei Xia, Guo Liu, Chunmei Chen, Meiyan Wen, Yangyang Gao
《环境科学与工程前沿（英文）》 2016年 第10卷 第6期 doi: 10.1007/s11783-016-0886-2
关键词： Sediment Red soil capping Flow conditions Nitrogen Phosphorus
《农业科学与工程前沿（英文）》 2022年 第9卷 第2期 页码 177-186 doi: 10.15302/J-FASE-2021421
A range of plant species produce root exudates that inhibit ammonia-oxidizing microorganisms. This biological nitrification inhibition (BNI) capacity can decrease N loss and increase N uptake from the rhizosphere. This study sought evidence for the existence and magnitude of BNI capacity in canola ( Brassica napus). Seedlings of three canola cultivars, Brachiaria humidicola(BNI positive) and wheat ( Triticum aestivum) were grown in a hydroponic system. Root exudates were collected and their inhibition of the ammonia oxidizing bacterium, Nitrosospira multiformis, was tested. Subsequent pot experiments were used to test the inhibition of native nitrifying communities in soil. Root exudates from canola significantly reduced nitrification rates of both N. multiformis cultures and native soil microbial communities. The level of nitrification inhibition across the three cultivars was similar to the well-studied high-BNI species B. humidicola. BNI capacity of canola may have implications for the N dynamics in farming systems and the N uptake efficiency of crops in rotational farming systems. By reducing nitrification rates canola crops may decrease N losses, increase plant N uptake and encourage microbial N immobilization and subsequently increase the pool of organic N that is available for mineralization during the following cereal crops.
Biomimetic mineralization and cytocompatibility of nanorod hydroxyapatite/graphene oxide composites
Peizhen Duan, Juan Shen, Guohong Zou, Xu Xia, Bo Jin
《化学科学与工程前沿（英文）》 2018年 第12卷 第4期 页码 798-805 doi: 10.1007/s11705-018-1708-9
关键词： hydroxyapatite graphene oxide biomimetic mineralization cytocompatibility
Using a systems modeling approach to improve soil management and soil quality
Enli WANG, Di HE, Zhigan ZHAO, Chris J. SMITH, Ben C. T. MACDONALD
《农业科学与工程前沿（英文）》 2020年 第7卷 第3期 页码 289-295 doi: 10.15302/J-FASE-2020337
Soils provide the structural support, water and nutrients for plants in nature and are considered to be the foundation of agriculture production. Improving soil quality and soil health has been advocated as the goal of soil management toward sustainable agricultural intensification. There have been renewed efforts to define and quantify soil quality and soil health but establishing a consensus on the key indicators remains difficult. It is argued that such difficulties are due to the former ways of thinking in soil management which largely focus on soil properties alone. A systems approach that treats soils as a key component of agricultural production systems is promoted. It is argued that soil quality must be quantified in terms of crop productivity and impacts on ecosystems services that are also strongly driven by climate and management interventions. A systems modeling approach captures the interactions among climate, soil, crops and management, and their impacts on system performance, thus helping to quantify the value and quality of soils. Here, three examples are presented to demonstrate this. In this systems context, soil management must be an integral part of systems management practices that also include managing the crops and cropping systems under specific climatic conditions, with cognizance of future climate change.
关键词： APSIM available water capacity nitrogen management soil functional properties soil health soil-plant modeling
标题 作者 时间 类型 操作
REGIONAL ASSESSMENT OF SOIL NITROGEN MINERALIZATION IN DIVERSE CROPLAND OF A REPRESENTATIVE INTENSIVE
期刊论文
OPPORTUNITIES AND APPROACHES FOR MANIPULATING SOIL-PLANT MICROBIOMES FOR EFFECTIVE CROP NITROGEN USE
期刊论文
EFFECTS OF SUBSTITUTION OF MINERAL NITROGEN WITH ORGANIC AMENDMENTS ON NITROGEN LOSS FROM SLOPING CROPLANDOF PURPLE SOIL
期刊论文
SOIL NITROGEN CYCLING AND ENVIRONMENTAL IMPACTS IN THE SUBTROPICAL HILLY REGION OF CHINA: EVIDENCE FROM
期刊论文
INTERCROPPING TEA PLANTATIONS WITH SOYBEAN AND RAPESEED ENHANCES NITROGEN FIXATION THROUGH SHIFTS INSOIL MICROBIAL COMMUNITIES
期刊论文
HIGHLIGHTS OF THE SPECIAL ISSUE “PROGRESS ON NITROGEN RESEARCH FROM SOIL TO PLANT AND TO THE ENVIRONMENT
期刊论文
Effects of mulching for water conservation on soil carbon, nitrogen and biological properties
Xiaomin PI, Tongxun ZHANG, Benhua SUN, Quanhong CUI, Yun GUO, Mingxia GAO, Hao FENG, David W. HOPKINS
期刊论文
CRITICAL PROCESSES AND MAJOR FACTORS THAT DRIVE NITROGEN TRANSPORT FROM FARMLAND TO SURFACE WATER BODIES
期刊论文
Red soil for sediment capping to control the internal nutrient release under flow conditions
Lei Xia, Guo Liu, Chunmei Chen, Meiyan Wen, Yangyang Gao
期刊论文
CANOLA EXHIBIT BIOLOGICAL NITRIFICATION INHIBITION AND ARE EFFECTIVE IN INHIBITING AMMONIA OXIDATION IN SOIL
期刊论文
Biomimetic mineralization and cytocompatibility of nanorod hydroxyapatite/graphene oxide composites
Peizhen Duan, Juan Shen, Guohong Zou, Xu Xia, Bo Jin
期刊论文
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