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Application of controlled-release urea increases maize N uptake,environmental benefits and economic returns via optimizing temporal and spatial distributions of soil mineral N

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Pedosphere 2024年第1期34卷 222-235页

作者： Mingxue SUN Juan LI Lili ZHANG Xiaomeng SU Ning LIU Xiaori HAN Songjiang WU Zhentao SUN Xiangdong YANG Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences/State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China/Key Laboratory of Plant Nutrition and FertilizerMinistry of Agriculture and Rural AffairsBeijing 100081China Agricultural Development Service Center of Zhuanghe Zhuanghe 116499China Agricultural Technology Extension Center Wafangdian 116300China College of Land and Environment Shenyang Agricultural UniversityShenyang 100866China

The creation of controlled-release urea (CRU) is a potent substitute for conventional fertilizers in order to preserve the availability of nitrogen (N) in soil,prevent environmental pollution,and move toward green *** main objectives of this study were to assess the impacts of CRU’s full application on maize production and to clarify the connection between the nutrient release pattern of CRU and maize nutrient *** order to learn more about the effects of CRU application on maize yields,N uptake,mineral N (N_(min)) dynamics,N balance in soil-crop systems,and economic returns,a series of field experiments were carried out in 2018–2020 in Dalian City,Liaoning Province,*** were 4 different treatments in the experiments:no N fertilizer input (control,CK);application of common urea at 210 kg ha^(-1)(U),the ideal fertilization management level for the study site;application of polyurethane-coated urea at the same N input rate as U (PCU);and application of PCU at a 20% reduction in N input rate (0.8PCU).Our findings showed that using CRU (i.e.,PCU and 0.8 PCU) may considerably increase maize N absorption,maintain maize yields,and increase N use efficiency (NUE) compared to *** grain yield showed considerable positive correlations with total N uptake in leaf in U and 0.8 PCU,but negative correlations with that in PCU,indicating that PCU caused excessive maize absorption while 0.8 PCU could achieve a better yield response to N ***,PCU was able to maintain N fertilizer in the soil profile 0–20 cm away from the fertilization point,and higher N_(min)content was observed in the 0–20 cm soil layer at various growth stages,particularly at the middle and late growing stages,optimizing the temporal and spatial distributions of N_(min).Additionally,compared to that in U,the apparent N loss rate in PCU was reduced by 36.2%,and applying CRU (PCU and 0.8 PCU) increased net profit by 8.5% to 15.2% with less labor and fertilization *** was co

关键词： apparent N loss fertilization management green agriculture maize yield N balance N use efficiency

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Different responses of soil fauna gut and plant rhizosphere microbiomes to manure applications

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Soil Ecology Letters 2024年第2期6卷 57-69页

作者： Shuai Du Xiang Zhao Yue Zhang Changlong Shu Ju-Pei Shen key laboratory of Urban Environment and Health Ningbo Urban Environment Observation and Research StationInstitute of Urban EnvironmentChinese Academy of SciencesXiamen361021China School of Geographical Sciences Fujian Normal UniversityFuzhou350007China Institute of Plant nutrition Resources and EnvironmentBeijing Academy of Agriculture and Forestry SciencesBeijing100097China State key laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing100193China Hebei key laboratory of Soil Entomology Cangzhou Academy of Agricultural and Forestry SciencesCangzhou061001China

Microbial attributes were compared between soil fauna gut and plant rhizosphere.•Manure applications decreased or increased gut or rhizosphere bacterial diversity.•Stochastic or deterministic processes drove gut or rhizosphere bacterial assembly.•Manure applications increased bacterial network complexity of gut and *** microbes inhabit animals and plants,helping their hosts perform multiple functions in agricultural ***,the responses of soil fauna gut and plant rhizosphere microbiomes to livestock manure applications are still not well *** we fed Protaetia brevitarsis larvae(PBL)with chicken manure and collected their *** frass and manure were applied as fertilizers to lettuce *** then compared the changes of microbial diversity,community assembly,and potential functions between the gut group(i.e.,all PBL gut and frass samples)and the rhizosphere group(i.e.,all rhizosphere soil samples).We revealed that manure applications(i.e.,feeding or fertilization)decreased bacterial diversity in the gut group but increased that in the rhizosphere ***,the proportions of Bacilli in the gut group and Gammaproteobacteria in the rhizosphere group were increased(up to a maximum of 33.8%and 20.4%,respectively)after manure *** and deterministic processes dominated community assembly in the gut and rhizosphere microbiomes,*** applications increased the microbial co-occurrence network complexity of both the gut and rhizosphere ***,the proportions of functional taxa associated with human/animal pathogens in the gut group and carbon/nitrogen cycling in the rhizosphere group were enhanced(up to 2.6-fold and 24.6-fold,respectively).Our findings illustrate the different responses of microbial diversity,community assembly,and potential functions in soil fauna gut and plant rhizosphere to manure *** results could enhance our knowledge on the reasonable utilization of

关键词： soil fauna gut plant rhizosphere manure applications community assembly microbial functions

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Green intelligent fertilizers——A novel approach for aligning sustainable agriculture with green development

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Frontiers of Agricultural Science and Engineering 2024年第1期11卷 186-196页

作者： Maoying WANG Lingyun CHENG Chengdong HUANG Yang LYU Lin ZHANG Zhenya LU Changzhou WEI Wenqi MA Zed RENGEL Jianbo SHEN Fusuo ZHANG State key laboratory of Nutrient Use and Management College of Resources and Environmental SciencesNational Academy of Agriculture Green DevelopmentKey Laboratory of Plant–Soil Interactions(Ministry of Education)China Agricultural UniversityBeijing 100193China College of Agronomy Shihezi UniversityShihezi 832000China College of Resources and Environmental Science Hebei Agricultural UniversityBaoding 071000China Soil Science and Plant nutrition UWA School of Agriculture and EnvironmentThe University of Western AustraliaPerthWA 6009Australia Institute for Adriatic Crops and Karst Reclamation Split 21000Croatia

This review addresses the growing disparity between the current state of fertilizer production in China and the evolving demands of green agriculture in the 21st century. It explores major advances in fertilizers, proposes the concept of green intelligent fertilizers and develops new strategies aligned with the principles of green development in fertilizer industry and *** intelligent fertilizers may be designed to maximize the synergistic effects among plants, soils, microorganisms, nutrient sources and the environment. This concept emphasizes the integration of industry and agriculture toward green development for entire industry chain, using an interdisciplinary approach to drive the green transformation of fertilizer industry, and promote green and sustainable development of agriculture. By bridging the gap between the current state of fertilizer industry and a growing need for environmentally responsible agricultural practices, this review highlights a path toward harmonizing fertilizer production with the imperatives of green agriculture.

关键词： Root-nutrient feedback green development intelligent fertilizers new fertilizer plant-soil-fertilizer interaction rhizosphere engineering

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Research Progress on the Growth-Promoting Effect of Plant Biostimulants on Crops

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Phyton-International Journal of Experimental Botany 2024年第4期93卷 661-679页

作者： Qi Lu Longfei Jin Cuiling Tong Feng Liu Bei Huang Dejian Zhang College of Horticulture and Gardening Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of WetlandYangtze UniversityJingzhou434020China Institute of Citrus Research Zhejiang Academy of Agricultural SciencesTaizhou318026China Jingzhou Institute of Technology Jingzhou434025China

A Plant Biostimulant is any substance or microorganism applied to plants to enhance nutrition efficiency,abioticstress tolerance,and/or crop quality traits,regardless of its nutrient *** application of Plant biostimulants(PBs)in production can reduce the application of traditional pesticides and chemical fertilizers and improvethe quality and yield of crops,which is conducive to the sustainable development of *** in-depthunderstanding of the mechanism and effect of various PBs is very important for how to apply PBs reasonablyand effectively in the practice of crop *** paper summarizes the main classification of PBs;Thegrowth promotion mechanism of PBs was analyzed from four aspects:improving soil physical and chemical properties,enhancing crop nutrient absorption capacity,photosynthesis capacity,and abiotic stress tolerance;At thesame time,the effects of PBs application on seed germination,seedling vigor,crop yield,and quality were summarized;Finally,how to continue to explore and study the use and mechanism of PBs in the future is analyzedand prospected,to better guide the application of PBs in crop production in the future.

关键词： Plant biostimulants growth promoting effect crop production

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Unloading phosphate for starch synthesis in cereal grains

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Molecular Plant 2021年第8期14卷 1232-1233页

作者： Lei Xu Keke Yi key laboratory of plarft nutrition and fertilizers Ministry of Agriculture and Rural AffairsInstitute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China

The macronutrient phosphorus(P)is essential for plant growth and of vital importance to crop *** is taken up from the soil in the form of inorganic orthophosphate[PO_(4)^(3-),HPO_(4)^(2-),H_(2)PO_(4)^(-)(Pi)]by plant *** Pi readily forms insoluble complexes and precipitates with organic matter and mineral cations,Pi bioavailability in the soil is usually low and often limits crop growth and final yield.

关键词： synthesis roots readily

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Effects of the combined application of organic and chemical nitrogen fertilizer on soil aggregate carbon and nitrogen:A 30-year study

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Journal of Integrative Agriculture 2023年第11期22卷 3517-3534页

作者： BAI Jin-shun ZHANG Shui-qing HUANG Shao-min XU Xin-peng ZHAO Shi-cheng QIU Shao-jun HE Ping ZHOU Wei State key laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081P.R.China key laboratory of Plant nutrition and fertilizers Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081P.R.China Institute of Plant nutrition and Resource Environment Henan Academy of Agricultural SciencesZhengzhou 450002P.R.China

To understand the long-term effects of combined organic and chemical nitrogen fertilization on soil organic C(SOC) and total N(TN), we conducted a 30-year field experiment with a wheat–maize rotation system on the Huang-HuaiHai Plain during 1990–2019. The experimental treatments consisted of five fertilizer regimes: no fertilizer(control), chemical fertilizer only(NPK), chemical fertilizer with straw(NPKS), chemical fertilizer with manure(NPKM), and 1.5 times the rate of NPKM(1.5NPKM). The NPK, NPKS, and NPKM treatments had equal N inputs. The crop yields were measured over the whole experimental duration. Soil samples were collected from the topsoil(0–10 and 10–20 cm) and subsoil(20–40 cm) layers for assessing soil aggregates and taking SOC and TN measurements. Compared with the NPK treatment, the SOC and TN contents increased significantly in both the topsoil(24.1–44.4% for SOC and 22.8–47.7% for TN) and subsoil layers(22.0–47.9% for SOC and 19.8–41.8% for TN) for the organically amended treatments(NPKS, NPKM and 1.5NPKM) after 30 years, while no significant differences were found for the average annual crop yields over the 30 years of the experiment. The 0–10 cm layer of the NPKS treatment and the 20–40 cm layer of the NPKM treatment had significantly higher macroaggregate fraction mass proportions(19.8 and 27.0%) than the NPK treatment. However, the 0–10 and 20–40 cm layers of the 1.5NPKM treatment had significantly lower macroaggregate fraction mass proportions(–19.2 and –29.1%) than the control. The analysis showed that the higher SOC and TN in the soil of organically amended treatments compared to the NPK treatment were related to the increases in SOC and TN protected in the stable fractions(i.e., free microaggregates and microaggregates within macroaggregates), in which the contributions of the stable fractions were 81.1–91.7% of the increase in SOC and 83.3–94.0% of the increase in TN, respectively. The relationships between average C inputs and both stable

关键词： soil aggregate fractions soil organic matter manure application straw return C:N ratio

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Variability of Aquatic Chemistry in CentralGuizhou Karst Region,China

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Chinese Journal Of Geochemistry 1998年第3期17卷 241-248页

作者：白占国万国江 Chinese Agricultural Ministry key laboratory of Plant nutrition Research Institute of Soils and Fertilizers Chinese Academy of Agricultural Sciences Beijing State key laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang

It is necessary to understand the aquatic chemical characteristics of natural surfacefresh water for water quality assessment. The chemical data from different kinds of water inthe central Guizhou karst area showed that spring water from carbonate rock cracks (crack-water) is of neutrality or meta-alkalinity and [C] Ca Ⅱ type. The amounts of all ions and theconcentrations of HCO3 and Ca2+ were higher in the autumn than in the spring. the crack-water was influenced by the infiltration of surface water in the process of erosion and/or transportation with decreasing HCO3- and increasing PH, SO, Cl, K+ and Na+ during runningin a certain distance on the land suffice. In particular, the chemical compeitions of the watersat Tianxingqiao (upper-stream), Shuiliandong (mid-waterfall) and Luoshuitan (down-pool)near the Huangguoshu Waterfall were much different from those of the crack-water. The concentrations of , Na+, Fe3+ and NO3- varied closely with seasons. The CaCO3 depositedviolently with CO2 release in the spring. In Lake Hongfeng the HCO3- /So- equivalent ratioswere only 2. 1 - 2. 4, but Ca2 + /Md+ up tO 2. 4 - 4. 2. The CI- concentration increased by afactor Of 1 and Na+ by order of magnitude relative to the spring water. These indicated the in-crease in artificial pollutant discharge in the Lake Hongfeng watershed. In addition, porewater in the soils coveing carbonate rocks belongs to strongly mineralized water. The obvious differences in water quality were controlled by carbonate despition, sulphate mineralization and nitrogen fixation as well as ammonification. It is indicated that the chemical compeitions in thewaters from the karst region were unstable and changeable.

关键词：中国贵州岩溶地区水化学地表水钙离子

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Nitrogen-iron interaction as an emerging factor influencing crop productivity and nutrient use efficiency

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Molecular Plant 2023年第11期16卷 1727-1729页

作者： Ying Liu Guohua Xu National key laboratory of Crop Genetics&Germplasm Enhancement and Utilization Nanjing Agricultural UniversityNanjing 210095China MOA key laboratory of Plant nutrition and Ferilization in Low-Middle Reaches of the Yangtze River Nanjing Agricultural UniversityNanjing 210095China

Plants are frequently subjected to a deficiency of single or multiple nutrients,leading to an imbalance of mineral elements impacting plant growth and *** evolution,plants acquired diverse morphological and physiological adaptations to cope with nutrient *** evidence supports the existence of multilevel interactions between mineral nutrients,in which the uptake,transport,and assimilation of a certain nutrient can be modulated by the status of other nutrients,thus allowing plants to coordinate the balance of all essential mineral *** macronutrients,nitrogen(N)is the essential nutrient required in the largest amount to sustain crop productivity(Xu et al.,2012).Because of the massive input of N fertilizers,N availability is no longer a limiting factor in most agricultural systems nowadays,but the excessive application of N fertilizers leads to several environmental problems(Sutton et al.,2011).Therefore,improving N use efficiency of crops becomes an urgent task of plant breeding(Xu et al.,2012;Hu et al.,2023).

关键词： breeding crops interaction

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Thellungiella halophila ThPIP1 gene enhances the tolerance of the transgenic rice to salt stress

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Journal of Integrative Agriculture 2015年第10期14卷 1911-1922页

作者： QIANG Xiao-jing YU Guo-hong JIANG Lin-lin SUN Lin-lin ZHANG Shu-hui LI Wei CHENG Xian-guo key Lab of Plant nutrition and fertilizers Ministry of Agriculture/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural Sciences College of Land and Environment Shenyang Agricultural University

Aquaporin proteins were demonstrated to play an important regulatory role in transporting water and other small molecules. To better understand physiological functions of aquaporins in extremophile plants, a novel ThPIP1 gene from the Thellungiella halophila was isolated and functionally characterized in the transgenic rice. Data showed that the ThPIP1 protein encoded 284 amino acids, and was identified to be located on the plasma membrane. The expression of ThPIP1 gene in the shoots and roots of T. halophila seedlings were induced by high salinity. The transgenic rice overexpressing ThPIP1 gene significantly increased plants tolerance to salt stress through the pathway regulating the osmotic potentials, accumulation of organic small molecules substances and the ratio of K＋/Na＋ in the plant cells. Moreover, split-ubiquitin yeast two-hybrid assay showed that Th PIP1 protein specifically interacted with ThPIP2 and a non-specific lipid-transfer protein 2, suggesting that ThPIP1 probably play a key role in responding to the reactions of multiple external stimulus and in participating in different physiological processes of plants exposed to salt stress.

关键词： ThPIP1 transgenic rice salt stress protein interaction Thellungiella halophila

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Excessive ammonia inhibited transcription of MsU2 gene and furthermore affected accumulation distribution of allantoin and amino acids in alfalfa Medicago sativa

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Journal of Integrative Agriculture 2015年第7期14卷 1269-1282页

作者： WANG Li JIANG Lin-lin Nomura Mika Tajima Shigeyuki CHENG Xian-guo College of Life Science Shanxi Normal University key laboratory of Plant nutrition and fertilizers Agriculture of Ministry/Insititute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural Sciences Faculty of Agriculture Kagawa University 2393 Ikenobe Miki-choKita-gun Kagawa 761-0795 Japan

In legume plants, uricase gene （Nodulin-35） plays a positive role in metabolism of ureide and amide compounds in symbiotic nitrogen-fixing in the nodules. In this study, a pot experiment was performed to examine the effects of ammonium application on the transcription of MsU2 gene and distribution of major nitrogen compounds in alfalfa Medicago sativa. Data showed that alfalfa plant has a significant difference in contents of nitrogen compounds in xylem saps compared with soybean plant, and belongs to typical amide type legume plants with little ureide accumulation, and the accumulation of asparagines and ureide in the tissues of alfalfa is mainly gathered in the nodules. Northern blotting showed that excessive ammonium significantly inhibited the transcription of MsU2 gene in the nodules and roots, and mRNA accumulation of MsU2 gene in the plants exposed to excessive ammonium decreased gradually with culture time extension, indicating that application of ammonium significantly inhibited the transcription of MsU2 gene in the alfalfa plants. Although the application of exces- sive ammonium increased the contents of amino acids in various tissues of alfalfa, the accumulation of allantoin reflecting the strength of uricase activity is remarkably reduced in the xylem saps, stems and nodules when alfalfa plants exposed to excessive ammonium, suggesting that application of excessive ammonium generated a negative effect on symbiosis fixing-nitrogen system due to inhibition of ammonium ion on uricase activity in the nodules of alfalfa. This result seems to imply that application of excessive ammonium in legume plants should not be proposed to avoid affecting the ability of fixing nitrogen in the nodules of legume plants, and reasonable dose of ammonium should be recommended to effectively utilize the fixed N from atmosphere in legume plant production.

关键词： alfalfa amino acids ammonium MsU2 gene allantoin

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