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Combining field data and modeling to better understand maize growth response to phosphorus(P) fertilizer application and soil P dynamics in calcareous soils

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Journal of Integrative Agriculture 2024年第3期23卷 1006-1021页

作者： Weina Zhang Zhigan Zhao Di He Junhe Liu Haigang Li Enli Wang School of Biological and Food Processing Engineering Huanghuai UniversityZhumadian 463000China Key Laboratory of Plant-soil Interactions Ministry of Education/College of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China Inner Mongolia Key Laboratory of soil Quality and Nutrient Resources/Key Laboratory of Grassland Resource(IMAU) Ministry of Education/College of GrasslandResources and EnvironmentInner Mongolia Agricultural UniversityHohhot 010018China CSIRO Agriculture and Food CanberraACT 2601Australia

We used field experimental data to evaluate the ability of the agricultural production system model (APSIM) to simulate soil P availability,maize biomass and grain yield in response to P fertilizer applications on a fluvo-aquic soil in the North China *** and soil data from a 2-year experiment with three P fertilizer application rates(0,75 and 300 kg P_(2)O_(5) ha^(–1)) were used to calibrate the *** analysis was carried out to investigate the influence of APSIM soilP parameters on the simulated P availability in soil and maize *** and soil P parameters were then derived by matching or relating the simulation results to observed crop biomass,yield,P uptake and Olsen-P in *** re-parameterized model was further validated against 2 years of independent data at the same *** re-parameterized model enabled good simulation of the maize leaf area index (LAI),biomass,grain yield,P uptake,and grain P content in response to different levels of P additions against both the calibration and validation *** results showed that APSIM needs to be re-parameterized for simulation of maize LAI dynamics through modification of leaf size curve and a reduction in the rate of leaf senescence for modern staygreen maize cultivars in *** P concentration limits (maximum and minimum P concentrations in organs)at different stages also need to be *** results further showed a curvilinear relationship between the measured Olsen-P concentration and simulated labile P content,which could facilitate the initialization of APSIM P pools in the NCP with Olsen-P measurements in future *** remains difficult to parameterize the APSIM soilP module due to the conceptual nature of the pools and simplified conceptualization of key P transformation processes.A fundamental understanding still needs to be developed for modelling and predicting the fate of applied P fertilizers in soils with contrasting physical and chemical characteristics.

关键词： maize phosphorus availability modeling APSIM maize APSIM soilP

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COMPARATIVE STUDY ON RESIDUAL EFFECTS OF ORGANIC AND INORGANIC fertilizer NITROGEN IN WATERLOGGED soil AND DRYLAND soil

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Science China Chemistry 1983年第2期26卷 167-173页

作者：黄东迈朱培立高家骅 Jiangsu Academy of Agricultural Sciences Nanjing Institute of soil and fertilizer

The balance of residual fertilizer nitrogen was studied with the application of crotalariaand ammonium sulfate in two opposite cropping sequences —rice-wheat-rice-wheat and wheatrice-wheat-rice. Air-dried plant of crotalaria tagged with(NH)SOand containing 6.5% ofN in total nitrogen was used as the sources ofN labelled organic manure. Ammonium sulfate tagged with 10.6%N was applied as inorganic *** recovery rate of residual fertilizer N was very low, averaging only 2.5%+2% on the basis of applied fertilizer N, in the case of rice as well as wheat in each successive cropping season. After the harvest of the first crop, more fertilizer nitrogen was immobilized as residual form in dryland soil than in waterlogged soil. The percentage of cumulative uptake of fertilizer N in rice-wheat-rice-wheat cropping sequence was much greater than that in the wheat-rice-wheat-rice sequence. It might be more economical to apply this kind of manure as basal dressing first to rice.

关键词： COMPARATIVE STUDY ON RESIDUAL EFFECTS OF ORGANIC AND INORGANIC fertilizer NITROGEN IN WATERLOGGED soil AND DRYLAND soil

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soil type and wetting intensity control the enhancement extent of N_(2)O efflux in soil with drought and rewetting cycles

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International soil and Water Conservation Research 2024年第1期12卷 137-144页

作者： Panpan Jiao Lei Yang Zhongwu Li Peng Zheng Xiaodong Nie School of Geographical Sciences Hunan Normal UniversityChangsha 410081China State Key Laboratory of soil Erosion and Dryland Farming on the Loess Plateau The Research Center of Soil and Water Conservation and Ecological EnvironmentChinese Academy of Sciences and Ministry of EducationYangling 712100China Institute of soil and Water Conservation Chinese Academy of Sciences and Ministry of Water ResourcesYangling 712100China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China

Climate change alters the intensity and frequency of drought and rewetting(D/W)events;however,the influence patterns of D/W on soil N_(2)O efflux in the water-limited area were not fully ***,the impacts of D/W cycles varying in different extent of rewetting and frequency to N_(2)O efflux in two kinds of soil on the Loess Plateau were *** incubation conditions consisted of 1)D/W treatments with four 7-day cycles from 10%water holding capacity(WHC)to 60%WHC or 90%WHC,2)constant moisture of 60%WHC and 90%*** pulse of N_(2)O efflux rate under 10-60%WHC treatment was higher than that under 10-90%WHC treatment in calcic cambisols,while opposite trend was observed in earth-cumuli-orthic ***,the pulse of N_(2)O efflux rate decreased as cycle number increased for different wetting intensities and soil *** direct N_(2)O efflux under 10-60%WHC and 10-90%WHC treatments were 5.49 and 1.89μg N_(2)O-N g^(-1)soil in calcic cambisols,with those being 1.92 and 10.85μg N_(2)O-N g^(-1)soil in earth-cumuli-orthic anthrosols,*** N loss in earth-cumuli-orthic anthrosols was approximately 5.74 times greater than that in calcic cambisols under 10-90%WHC treatment,whereas the N loss under 10-60%WHC treatment was about 2.86 times greater in calcic cambisols than that in earth-cumuli-orthic *** study suggested that extreme rainfall events can enhance the N_(2)O efflux and N loss in agricultural soils on the Loess Plateau in terms of soil type and wetting intensity,which should not be ignored in the N fertilizer management.

关键词： Drought/rewetting cycles N_(2)O efflux Wetting intensity Microbial biomass N Dissolved organic N Loess plateau

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OsPPG encodes a pseudouridine-5'-phosphate glycosidase and regulates rice spikelet development

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The Crop Journal 2024年第3期12卷 698-708页

作者： Rui Chen Dagang Tian Yarong Lin Jiaqing Huang Qinqin Yang Yupei Li Huaqing Liu Shaohua Yang Jingyang Chen Shufen Zhou Feng Wang Shubiao Zhang Key Laboratory of Genetics Breeding and Multiple Utilization of CropsMinistry of Education/Key Laboratory of Biological Breeding for Fujian and Taiwan CropsMinistry of Agriculture and Rural AffairsFujian Agriculture and Forestry UniversityFuzhou 350002FujianChina Fujian Key Laboratory of Genetic Engineering for Agriculture Biotechnology Research InstituteFujian Academy of Agricultural SciencesFuzhou 350003FujianChina Institute of Resources Environment and Soil FertilizerFujian Academy of Agricultural SciencesFuzhou 350013FujianChina

Florets are the basic structural units of spikelets,and their morphogenesis determines the yield and quality of rice ***,whether and how pseudouridine-5’-phosphate glycosidase participates in rice spikelet development remains an open *** this study,we identified a novel gene,OsPPG,which encodes a peroxisome-localized pseudouridine-5’-phosphate glycosidase and regulates the development of rice *** mutants exhibited abnormal sterile lemma,lemma,palea,lodicule,stamens,and pistils;male sterility;shorter panicles;and reduced plant *** was found to regulate several OsMADS genes,thereby affecting the morphogenesis of rice ***,metabolomics revealed that the OsPPG gene was involved in the decomposition of pseudouridine via the pyrimidine metabolism pathway and may affect the jasmonic acid signaling *** results suggest that OsPPG is a key regulator of rice spikelet development.

关键词： OsPPG Reproductive regulation Spikelet development Rice

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Increasing phosphorus fertilizer value of recycled iron phosphates by prolonged flooding and organic matter addition

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Pedosphere 2024年第3期34卷 631-640页

作者： Rochelle Joie SARACANLAO Hannah VAN RYCKEL Mieke VERBEECK Maarten EVERAERT Erik SMOLDERS Division of soil and Water Management Department of Earth and Environmental ScienceKU LeuvenKasteelpark Arenberg 20Heverlee B-3001(Belgium) soil Service of Belgium.Willem De Croylaan 48 Leuven 3001(Belgium)

Iron(Fe)minerals are commonly used to remove phosphorus(P)from waste streams,producing P-loaded Fe(Ⅲ)oxides or Fe(Ⅱ)phosphate minerals(e.g.,vivianite).These minerals may be used as fertilizers to enhance P circularity if solubilized in ***,we tested the P fertilizer value of recycled Fe phosphates(FePs)in a pot trial and in an incubation experiment,hypothesizing that P release from FePs is possible under Fe(Ⅲ)-reducing ***,a pot trial was set up with rice(Oryza sativa)in all combinations of soil flooding or not,three P-deficient soils(acid,neutral,and calcareous),and six FePs(three Fe(Ⅲ)Ps and three Fe(Ⅱ)Ps)referenced to triple superphosphate(TSP)or zero *** P uptake responded to TSP application in all treatments but only marginally to *** redox potential did not decrease to-200 mV by flooding for a brief period(13 d)during the pot trial.A longer incubation experiment(60 d)was performed,including a treatment of glutamate addition to stimulate reductive conditions,and P availability was assessed with CaCl_(2)extraction of *** addition and/or longer incubation lowered soil redox potential tosoil and in the neutral soil amended with Fe(Ⅲ)*** can be concluded that prolonged soil flooding and organic matter addition can enhance the P fertilizer efficiency of ***,application of FeP in powder form may enhance P availability.

关键词： agronomic efficiency circular economy P-loaded Fe(Ⅲ)oxides paddy soil vivianite redox

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soil physical quality as influenced by long-term fertilizer management under an intensive cropping system

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International Journal of Agricultural and Biological Engineering 2009年第1期2卷 19-27页

作者： Du Zhangliu Liu Shufu Xiao Xiaoping Yang Guangli Ren Tusheng Department of soil and Water Sciences China Agricultural UniversityBeijing 100193China soil and fertilizer Institute of Hunan Province Changsha 410125China

In China’s major rice(Oryza sativa L.)production regions,the traditional fertilization modes are challenged by the continued decrease in manure and increase in mineral ***,limited information exists on the influences of long-term fertilizer management on soil organic carbon(SOC)and soil physical properties under the intensive rice production system in southern *** objective of this study was to characterize the changes of soil physical properties as related to mineral fertilizer,crop residues,and manure application based on a long-term field *** experiment,initiated in 1986,has five treatments:unfertilized,mineral fertilizer alone,rice residues plus mineral fertilizer,low manure rate plus mineral fertilizer,and high manure rate plus mineral *** cropping system consists of barley(Hordaum vulgare L.),early rice,and late rice,three crops in a *** May 2006,after barley harvest,soil samples were collected from the 0~10 cm and 10~20 cm layers to determine SOC concentration,aggregate size distribution,bulk density(rb),saturated hydraulic conductivity(Ks),and soil water characteristic curves(SWCC).The results indicated that manure significantly reducedrb,increased SOC concentration,soil aggregation,Ks,transmission and storage porosity,as well as water retention *** application of crop residue and mineral fertilizer also improved soil physical properties,but the improvement by mineral fertilizer alone was *** analysis demonstrated that S,the slope of the SWCC at its inflection point,was closely associated with the selected physical parameters,suggesting S was an effective parameter for soil physical quality ***,in applying the S-theory,a unified approach to define the residual water content should be considered.

关键词： Mineral fertilizer crop residue manure soil physical quality soil water characteristic curve S-theory

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Mycorrhizal fungi mitigate nitrogen losses of an experimental grassland by facilitating plant uptake and soil microbial immobilization

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Pedosphere 2024年第2期34卷 399-410页

作者： Yangyang JIA Marcel G.A.VAN DER HEIJDEN Alain Y.VALZANO-HELD Markus JOCHER Florian WALDER Postdoctoral Mobile Station of Ecology College of Ecology and EnvironmentXinjiang UniversityÜrümqi 830046China Research Group Plant-soil Interactions AgroscopeZürich 8046Switzerland Research Group Climate and Agriculture AgroscopeZürich 8046Switzerland Department of Plant and Microbial Biology University of ZürichZürich 8008Switzerland Research Group soil Quality and soil Use AgroscopeZürich 8046Switzerland

Nitrogen(N)is one of the most limited nutrients of terrestrial ecosystems,whose losses are prevented in tightly coupled cycles in finely tuned *** change-induced N enrichment through atmospheric deposition and application of vast amounts of fertilizer are now challenging the terrestrial N *** mycorrhizal fungi(AMF)are known drivers of plant-soil nutrient fluxes,but a comprehensive assessment of AMF involvement in N cycling under global change is still ***,we simulated N enrichment by fertilization(low/high)in experimental grassland microcosms under greenhouse conditions in the presence or absence of AMF and continuously monitored different N pathways over nine *** found that high N enrichment by fertilization decreased the relative abundance of legumes and the plant species dominating the plant community changed from grasses to forbs in the presence of AMF,based on aboveground *** presence of AMF always maintained plant N:phosphorus(P)ratios between 14 and 16,no matter how the soil N availability *** in plant N:P ratios due to the increased plant N and P uptake might thus be a primary pathway of AMF altering plant community ***,we constructed a comprehensive picture of AMF’s role in N cycling,highlighting that AMF reduced N losses primarily by mitigating N leaching,while N_(2)O emissions played a marginal *** mycorrhizal fungi reduced N_(2)O emissions directly through the promotion of N_(2)O-consuming *** underlying mechanism for reducing N leaching is mainly the AMF-mediated improved nutrient uptake and AMF-associated microbial *** results indicate that synergies between AMF and other soil microorganisms cannot be ignored in N cycling and that the integral role of AMF in N cycling terrestrial ecosystems can buffer the upcoming global changes.

关键词： N cycling N enrichment N uptake N:P ratio plant community structure symbiotic soil fungi

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Effects of long-term fertilization with different substitution ratios of organic fertilizer on paddy soil

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Pedosphere 2022年第4期32卷 637-648页

作者： Weifeng SONG Aiping SHU Jiai LIU Wenchong SHI Mingcong LI Wenxue ZHANG Zuzhang LI Guangrong LIU Fusheng YUAN Shuxin ZHANG Zengbing LIU Zheng GAO State Key Laboratory of Crop Biology Shandong Agricultural UniversityTai'anChina College of Life Sciences Shandong Agricultural UniversityTai'anChina Institute of soil and fertilizer&Resource and Environment/National Engineering and Technology Research Center for Red soil Improvement Nanchang330200China

In recent years,the abuse of chemical fertilizers has caused numerous environmental problems,such as soil acidification and *** chemical fertilizers with organic fertilizers can effectively alleviate these ***,the effects of alternative organic fertilizers remain *** explore the effects of organic fertilizer substitution on rice yield and paddy soil physicochemical properties and bacterial community structure,we conducted a 5-year experiment using different proportions of organic fertilizer substitution in a double-cropping rice field in Jiangxi,*** results showed that replacing chemical fertilizers with organic fertilizers can reduce soil acidification,increase soil organic matter content,nutrient contents,and enzyme activities,improve soil physicochemical properties and microbial community,and enhance soil *** organic substitution also had positive effects on rice *** findings enhance our understanding of the effects of different alternative organic fertilization methods and have important theoretical significance for the promotion of the use of organic fertilizers in the future.

关键词： bacterial community double-cropping rice organic matter rice yield soil acidification,soil property

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Positive effects of biochar application and Rhizophagus irregularis inoculation on mycorrhizal colonization,rice seedlings and phosphorus cycling in paddy soils

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Pedosphere 2024年第2期34卷 361-373页

作者： Yixuan CHEN Zhonghua WEN Jun MENG Zunqi LIU Jialong WEI Xiyu LIU Ziyi GE Wanning DAI Li LIN Wenfu CHEN National Biochar Institute Shenyang Agricultural UniversityShenyang 110866China Key Laboratory of Biochar and soil Improvement Ministry of Agriculture and Rural AffairsShenyang 110866China

Phosphorus(P)is an essential element for plant growth but is often limiting in ecosystems;therefore,improving the P fertilizer use efficiency is *** and arbuscular mycorrhizal fungi(AMF)may enhance P cycling in paddy soils that contain high content of total P but low content of available P(AP).In this study,the effects of biochar addition and Rhizophagus irregularis inoculation on the organic and inorganic P contents and phosphatase activities in paddy soils,rice seedling growth,and AMF colonization were *** with no biochar addition,biochar addition enhanced the percentage of spore germination at day 7,hyphal length,most probable number,and mycorrhizal colonization rate of *** by 32%,662%,70%,and 28%on average,*** and *** altered soil P cycling and *** and ***,either individually or in combination,increased soil AP content by 2%–48%.Rice seedlings treated with biochar and *** produced greater biomass,improved root morphology,and increased nutrient uptake compared with those of the control without biochar and *** results suggest that combined application of biochar and *** is beneficial to rice cultivation in paddy soils with high content of total P but low content of AP.

关键词： arbuscular mycorrhizal fungi available P phosphorus fraction rice husk biochar seedling growth spore germination

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Mapping of Total Carbon and Clay Contents in Glacial Till soil Using On-the-Go Near-Infrared Reflectance Spectroscopy and Partial Least Squares Regression

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Pedosphere 2013年第3期23卷 305-311页

作者： SHEN Zhang-Quan SHAN Ying-Jie PENG Li JIANG Yu-Gen Institute of Agricultural Remote Sensing and Information Technology Application Zhejiang University Zhejiang soil and fertilizer Station Fuyang soil and fertilizer Station

Characterizing spatial variability of soil attributes, using traditional soil sampling and laboratory analysis, is cost prohibitive. The potential benefit of managing soils on a site-specific basis is well established. High variations in glacial till soil render detailed soil mapping difficult with limited number of soil samples. To overcome this problem, this paper demonstrates the feasibility of soil carbon and clay mapping using the newly developed on-the-go near-infrared reflectance spectroscopy (NIRS). Compared with the geostatistics method, the partial least squares regression (PLSR), with NIRS measurements, could yield a more detailed map for both soil carbon and clay. Further, by using independent validation dataset, the accuracy of predicting could be improved significantly for soil clay content and only slightly for soil carbon content. Owing to the complexity of field conditions, more work on data processing and calibration modeling might be necessary for using on-the-go NIRS measurements.

关键词： independent validation on-the-go measurement soil carbon mapping soil clay mapping soil sensors

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