Pub Date : 2026-01-01Epub Date: 2025-12-08DOI: 10.1007/s10705-025-10458-w
Oliver Zemek, Astrid Oberson, Julie Dusserre, Eric Scopel, Emmanuel Frossard
Efficient nitrogen (N) use remains a key challenge for upland rice production on weathered tropical soils, particularly in low-input smallholder systems where external inputs are limited and nutrient cycling is constrained. This study assessed the effects of integrating the legume Stylosanthes guianensis (stylo) into a conservation agriculture (CA) rotation on rice N use efficiency (NUE), and biomass productivity in Madagascar's Midwest Highlands. A factorial field experiment tested soil tillage, stylo biomass management (retention, removal, incorporation), and N fertilizer types (none, farmyard manure, mineral fertilizer), using 15N isotope labelling techniques, which allowed us to quantify N sources and recovery pathways with high resolution. Mineral fertilizer resulted in the highest grain yield (429 g DM m-2), N uptake (6.1 g N m-2), and 15N recovery (52%), surpassing global NUE benchmarks. In the absence of fertilizer, rotation with stylo increased grain yield by 53% and N uptake by 43% compared to continuous rice (189 g DM m-2; 2.3 g N m-2), reflecting strong biological and structural legacy effects. Although stylo mulch had a high C:N ratio and contributed minimally to direct N uptake, it improved soil moisture and likely promoted conditions favourable to N mineralization. Tillage effects on N uptake and yield were negligible. These findings demonstrate that legume integration under CA can improve N cycling, enhance fertilizer N recovery, and significantly increase NUE and yield resilience in smallholder systems. Future strategies should explore how partitioning legume biomass between soil cover and fodder affects nutrient flows, and whether livestock-mediated recycling can help close N loops in mixed farming systems.
Supplementary information: The online version contains supplementary material available at 10.1007/s10705-025-10458-w.
有效利用氮仍然是热带风化土壤旱稻生产面临的一个关键挑战，特别是在外部投入有限、养分循环受限的低投入小农系统中。本研究评估了将豆科植物柱花草（Stylosanthes guianensis）纳入保护性农业（CA）轮作对马达加斯加中西部高地水稻氮利用效率（NUE）和生物量生产力的影响。一个因子田间试验测试了土壤耕作，柱头生物量管理（保留，去除，结合）和氮肥类型（无氮肥，农家肥，矿物肥），使用15N同位素标记技术，这使我们能够以高分辨率量化氮素来源和恢复途径。施用矿肥后，籽粒产量最高（429 g DM m-2），氮素吸收量最高（6.1 g N m-2），氮素回收率最高（52%），超过全球氮肥利用率基准。在不施肥的情况下，与连作水稻（189 g DM m-2; 2.3 g N m-2）相比，有柱头轮作提高了53%的粮食产量和43%的氮素吸收量，反映出强烈的生物和结构遗留效应。尽管柱头覆盖碳氮比高，对氮的直接吸收贡献小，但它改善了土壤水分，可能促进了有利于氮矿化的条件。耕作对氮素吸收和产量的影响可以忽略不计。综上所述，CA下豆科作物整合可促进小农系统氮素循环，提高氮肥恢复，显著提高氮肥利用效率和产量恢复力。未来的策略应该探索豆科植物生物量在土壤覆盖层和饲料之间的分配如何影响养分流动，以及牲畜介导的循环是否有助于关闭混合耕作系统中的氮循环。补充信息：在线版本包含补充资料，提供地址：10.1007/s10705-025-10458-w。
{"title":"Nitrogen use efficiency and yield gains from <i>Stylosanthes guianensis</i> integration in upland rice: insights from a <sup>15</sup>N-labelling study under conservation agriculture.","authors":"Oliver Zemek, Astrid Oberson, Julie Dusserre, Eric Scopel, Emmanuel Frossard","doi":"10.1007/s10705-025-10458-w","DOIUrl":"10.1007/s10705-025-10458-w","url":null,"abstract":"<p><p>Efficient nitrogen (N) use remains a key challenge for upland rice production on weathered tropical soils, particularly in low-input smallholder systems where external inputs are limited and nutrient cycling is constrained. This study assessed the effects of integrating the legume <i>Stylosanthes guianensis</i> (stylo) into a conservation agriculture (CA) rotation on rice N use efficiency (NUE), and biomass productivity in Madagascar's Midwest Highlands. A factorial field experiment tested soil tillage, stylo biomass management (retention, removal, incorporation), and N fertilizer types (none, farmyard manure, mineral fertilizer), using <sup>15</sup>N isotope labelling techniques, which allowed us to quantify N sources and recovery pathways with high resolution. Mineral fertilizer resulted in the highest grain yield (429 g DM m<sup>-2</sup>), N uptake (6.1 g N m<sup>-2</sup>), and <sup>15</sup>N recovery (52%), surpassing global NUE benchmarks. In the absence of fertilizer, rotation with stylo increased grain yield by 53% and N uptake by 43% compared to continuous rice (189 g DM m<sup>-2</sup>; 2.3 g N m<sup>-2</sup>), reflecting strong biological and structural legacy effects. Although stylo mulch had a high C:N ratio and contributed minimally to direct N uptake, it improved soil moisture and likely promoted conditions favourable to N mineralization. Tillage effects on N uptake and yield were negligible. These findings demonstrate that legume integration under CA can improve N cycling, enhance fertilizer N recovery, and significantly increase NUE and yield resilience in smallholder systems. Future strategies should explore how partitioning legume biomass between soil cover and fodder affects nutrient flows, and whether livestock-mediated recycling can help close N loops in mixed farming systems.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s10705-025-10458-w.</p>","PeriodicalId":19336,"journal":{"name":"Nutrient Cycling in Agroecosystems","volume":"132 1","pages":"5"},"PeriodicalIF":2.7,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12685974/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145724856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01Epub Date: 2025-02-05DOI: 10.1007/s10705-024-10395-0
Regine Maier, Lukas Hörtnagl, Nina Buchmann
Global agriculture is the largest anthropogenic source for nitrous oxide (N2O) emissions. During crop rotations, periods with arable soils without crops, thereafter called "bare soils" are often impossible to avoid after the crop is harvested, prior to sowing of the next crop. However, such periods are underrepresented in studies focussing on N2O emissions. Here, we present continuous, high-temporal-resolution N2O fluxes during bare soil periods after four major crops, using the eddy-covariance technique at two sites in Switzerland. Overall, periods with bare soil were net sources for N2O as well as for carbon dioxide (CO2) and methane (CH4). Daily average sums of N2O emissions varied between 10 ± 2 and 38 ± 5 g N2O-N ha-1 d-1 after the respective rapeseed, winter wheat, pea, and maize harvests. While CO2 emissions contributed 86-96% to the total GHG budgets, N2O fluxes accounted for 2% after pea, but for 10-12% after rapeseed, winter wheat, and maize. In contrast, CH4 fluxes were negligible (< 2%). N2O fluxes during bare soil periods increased for all cropland sites with increasing water-filled pore space, particularly at high soil temperatures. Thus, our study emphasizes the significance of avoiding bare soil periods to mitigate N2O emissions from croplands.
Supplementary information: The online version contains supplementary material available at 10.1007/s10705-024-10395-0.
全球农业是一氧化二氮（N2O）排放的最大人为来源。在作物轮作期间，在作物收获后，在播种下一季作物之前，往往无法避免可耕种土壤没有作物的时期，因此称为“裸露土壤”。然而，在关注一氧化二氮排放的研究中，这些时期的代表性不足。在这里，我们使用涡旋协方差技术在瑞士的两个地点展示了四种主要作物种植后裸露土壤期间连续的高时间分辨率N2O通量。总体而言，土壤裸露期是N2O、二氧化碳和甲烷的净来源。在油菜、冬小麦、豌豆和玉米收获后，N2O的日平均排放量在10±2 ~ 38±5 g N2O- n ha-1 d-1之间变化。CO2排放占温室气体总收支的86-96%，而N2O通量在豌豆之后占2%，在油菜籽、冬小麦和玉米之后占10-12%。相比之下，CH4通量可以忽略不计(所有农田裸露土壤期的2O通量随着充水孔隙空间的增加而增加，特别是在土壤高温下。因此，我们的研究强调了避免裸露土壤期对减少农田N2O排放的重要性。补充信息：在线版本包含补充资料，可在10.1007/s10705-024-10395-0获得。
{"title":"Large nitrous oxide emissions from arable soils after crop harvests prior to sowing.","authors":"Regine Maier, Lukas Hörtnagl, Nina Buchmann","doi":"10.1007/s10705-024-10395-0","DOIUrl":"10.1007/s10705-024-10395-0","url":null,"abstract":"<p><p>Global agriculture is the largest anthropogenic source for nitrous oxide (N<sub>2</sub>O) emissions. During crop rotations, periods with arable soils without crops, thereafter called \"bare soils\" are often impossible to avoid after the crop is harvested, prior to sowing of the next crop. However, such periods are underrepresented in studies focussing on N<sub>2</sub>O emissions. Here, we present continuous, high-temporal-resolution N<sub>2</sub>O fluxes during bare soil periods after four major crops, using the eddy-covariance technique at two sites in Switzerland. Overall, periods with bare soil were net sources for N<sub>2</sub>O as well as for carbon dioxide (CO<sub>2</sub>) and methane (CH<sub>4</sub>). Daily average sums of N<sub>2</sub>O emissions varied between 10 ± 2 and 38 ± 5 g N<sub>2</sub>O-N ha<sup>-1</sup> d<sup>-1</sup> after the respective rapeseed, winter wheat, pea, and maize harvests. While CO<sub>2</sub> emissions contributed 86-96% to the total GHG budgets, N<sub>2</sub>O fluxes accounted for 2% after pea, but for 10-12% after rapeseed, winter wheat, and maize. In contrast, CH<sub>4</sub> fluxes were negligible (< 2%). N<sub>2</sub>O fluxes during bare soil periods increased for all cropland sites with increasing water-filled pore space, particularly at high soil temperatures. Thus, our study emphasizes the significance of avoiding bare soil periods to mitigate N<sub>2</sub>O emissions from croplands.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s10705-024-10395-0.</p>","PeriodicalId":19336,"journal":{"name":"Nutrient Cycling in Agroecosystems","volume":"130 2","pages":"161-175"},"PeriodicalIF":2.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11950146/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-09DOI: 10.1007/s10705-023-10331-8
S. Rothardt, Henning Kage
{"title":"Simulation-based assessment of residue management to mitigate N loss risk in winter wheat production","authors":"S. Rothardt, Henning Kage","doi":"10.1007/s10705-023-10331-8","DOIUrl":"https://doi.org/10.1007/s10705-023-10331-8","url":null,"abstract":"","PeriodicalId":19336,"journal":{"name":"Nutrient Cycling in Agroecosystems","volume":"91 6","pages":"1-19"},"PeriodicalIF":3.1,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139444589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-16DOI: 10.1007/s10705-023-10323-8
S. Reeves, Weijin Wang, Stephen Ginns
{"title":"Mitigate N2O emissions while maintaining sugarcane yield using enhanced efficiency fertilisers and reduced nitrogen rates","authors":"S. Reeves, Weijin Wang, Stephen Ginns","doi":"10.1007/s10705-023-10323-8","DOIUrl":"https://doi.org/10.1007/s10705-023-10323-8","url":null,"abstract":"","PeriodicalId":19336,"journal":{"name":"Nutrient Cycling in Agroecosystems","volume":"50 s25","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138967870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-08DOI: 10.1007/s10705-023-10322-9
K. Marsden, Camila A. dos Santos, J. Friedl, D. Rowlings, Dave R. Chadwick, Richard J. Eckard
{"title":"Are nitrification inhibitors effective in reducing N2O from farm-scale emission hotspots?","authors":"K. Marsden, Camila A. dos Santos, J. Friedl, D. Rowlings, Dave R. Chadwick, Richard J. Eckard","doi":"10.1007/s10705-023-10322-9","DOIUrl":"https://doi.org/10.1007/s10705-023-10322-9","url":null,"abstract":"","PeriodicalId":19336,"journal":{"name":"Nutrient Cycling in Agroecosystems","volume":"14 6","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138589936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"One-time root-zone fertilization of controlled-release urea increases nitrogen use efficiency while reducing nitrogen loss risk in a ratoon rice field under two irrigation practices","authors":"Zijuan Ding, Jintao Li, Fei Huang, Ren Hu, Shaobing Peng, Jianliang Huang, Jun Hou, Jianli Zhou, Chengfang Li, Bing Su, Mingjian Xu","doi":"10.1007/s10705-023-10328-3","DOIUrl":"https://doi.org/10.1007/s10705-023-10328-3","url":null,"abstract":"","PeriodicalId":19336,"journal":{"name":"Nutrient Cycling in Agroecosystems","volume":"22 2","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138587693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-02DOI: 10.1007/s10705-023-10329-2
Benedikt Müller, Jens Hartung, M. von Cossel, I. Lewandowski, Torsten Müller, Andrea Bauerle
{"title":"On-farm use of recycled liquid ammonium sulphate in Southwest Germany using a participatory approach","authors":"Benedikt Müller, Jens Hartung, M. von Cossel, I. Lewandowski, Torsten Müller, Andrea Bauerle","doi":"10.1007/s10705-023-10329-2","DOIUrl":"https://doi.org/10.1007/s10705-023-10329-2","url":null,"abstract":"","PeriodicalId":19336,"journal":{"name":"Nutrient Cycling in Agroecosystems","volume":"112 15","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138607288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Spatial distribution and environmental risk of soil phosphorus under a long-term fertilizer strategy in a rice–wheat rotation system","authors":"Yuan-hong Wang, Yutao Cui, Shunjin Li, Huaiyu Yang, Wei Zhang","doi":"10.1007/s10705-023-10326-5","DOIUrl":"https://doi.org/10.1007/s10705-023-10326-5","url":null,"abstract":"","PeriodicalId":19336,"journal":{"name":"Nutrient Cycling in Agroecosystems","volume":"443 ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139244735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-16DOI: 10.1007/s10705-023-10327-4
Doline Fontaine, J. Rasmussen, J. Eriksen
{"title":"Marginal increase in nitrate leaching under grass–clover leys by slurry and mineral fertilizer","authors":"Doline Fontaine, J. Rasmussen, J. Eriksen","doi":"10.1007/s10705-023-10327-4","DOIUrl":"https://doi.org/10.1007/s10705-023-10327-4","url":null,"abstract":"","PeriodicalId":19336,"journal":{"name":"Nutrient Cycling in Agroecosystems","volume":"29 2","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139269182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-11DOI: 10.1007/s10705-023-10324-7
Rafael Otto, Lucas Miguel Altarugio, Sarah Mello Leite Moretti, Sarah Tenelli, Johnny Rodrigues Soares, Marcelo Grijalva Carneiro Barros, Davi Coutinho Moura, Estêvão Vicari Mellis
{"title":"Multisite potassium fertilization effects on sugarcane ratoon yield and economic return in South-Central Brazil","authors":"Rafael Otto, Lucas Miguel Altarugio, Sarah Mello Leite Moretti, Sarah Tenelli, Johnny Rodrigues Soares, Marcelo Grijalva Carneiro Barros, Davi Coutinho Moura, Estêvão Vicari Mellis","doi":"10.1007/s10705-023-10324-7","DOIUrl":"https://doi.org/10.1007/s10705-023-10324-7","url":null,"abstract":"","PeriodicalId":19336,"journal":{"name":"Nutrient Cycling in Agroecosystems","volume":"48 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135042978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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