Nan Li, D. Bullock, Carrie J. Butts-Wilmsmeyer, Laura F. Gentry, G. Goodwin, Jaeyeong Han, Nathan Kleczweski, N. F. Martin, P. Paulausky, Pete Pistorius, N. Seiter, N. Schroeder, A. Margenot
Associations between nitrogen (N) management and losses with soil health indicators (SHI) are widely presumed but relatively untested. An on‐farm experiment conducted in central Illinois was conducted to test potential relationships of SHI with agroecosystem outcomes of maize (Zea mays L.) yield and N losses under bounding N fertilization rates of 168 and 252 kg/ha. Chemical (n = 19), physical (n = 11), and biological (n = 14) SHI were measured at 24 locations within a 30‐ha field at five timepoints (V3, V10, RT, R6, and post‐harvest). Yields did not necessarily reflect N‐fertilization rates, with lowest yields (14.5 Mg/ha) under 224 kg/ha. Flow‐weighted nitrate‐N concentration was significantly higher under 168 kg N/ha (10.6 mg/L) relative to higher application rates, though cumulative tile nitrate‐N loads were similar. SHI varied more by sampling location and time than by N application rate. Depending on the time of sampling, distinct SHI were related to yield and tile N losses. Total soil carbon and permanganate oxidizable carbon (POXC) best explained yield variation, whereas POXC and sand content best explained variation in nitrate‐N loss. Nematode indices helped explain variability in yield (Simpson, Shannon) and nitrate‐N losses (Maturity), supporting recent propositions to integrate nematode measures into soil health assessments. This study provides a basis for expanding to multiyear assessments of SHI linkages with nutrient losses and crop productivity in the North Central US.This article is protected by copyright. All rights reserved
氮（N）管理和损失与土壤健康指标（SHI）之间的关系被广泛推测，但相对未经测试。在伊利诺伊州中部进行了一项田间试验，以测试在168和252公斤/公顷的边界氮施肥率下，SHI与玉米（Zea mays L.）产量和氮损失的农业生态系统结果的潜在关系。在五个时间点（V3、V10、RT、R6和收获后），在30公顷田地内的24个位置测量化学（n=19）、物理（n=11）和生物（n=14）SHI。产量并不一定反映氮肥施用率，224公斤/公顷以下的产量最低（14.5毫克/公顷）。流量加权硝酸盐-N浓度在168 kg N/ha（10.6 mg/L）下显著高于施用率，尽管累积硝酸盐-N负荷相似。SHI随采样位置和时间的变化大于随施氮量的变化。根据采样时间的不同，不同的SHI与产量和氮损失有关。土壤总碳和高锰酸盐可氧化碳（POXC）最能解释产量变化，而POXC和含砂量最能解释硝态氮损失的变化。线虫指数有助于解释产量（Simpson，Shannon）和硝态氮损失（成熟度）的可变性，支持最近将线虫测量纳入土壤健康评估的主张。这项研究为将SHI与美国中北部营养损失和作物生产力的联系扩展到多年评估提供了基础。本文受版权保护。保留所有权利
{"title":"Distinct soil health indicators are associated with variation in maize yield and tile drain nitrate losses","authors":"Nan Li, D. Bullock, Carrie J. Butts-Wilmsmeyer, Laura F. Gentry, G. Goodwin, Jaeyeong Han, Nathan Kleczweski, N. F. Martin, P. Paulausky, Pete Pistorius, N. Seiter, N. Schroeder, A. Margenot","doi":"10.1002/saj2.20586","DOIUrl":"https://doi.org/10.1002/saj2.20586","url":null,"abstract":"Associations between nitrogen (N) management and losses with soil health indicators (SHI) are widely presumed but relatively untested. An on‐farm experiment conducted in central Illinois was conducted to test potential relationships of SHI with agroecosystem outcomes of maize (Zea mays L.) yield and N losses under bounding N fertilization rates of 168 and 252 kg/ha. Chemical (n = 19), physical (n = 11), and biological (n = 14) SHI were measured at 24 locations within a 30‐ha field at five timepoints (V3, V10, RT, R6, and post‐harvest). Yields did not necessarily reflect N‐fertilization rates, with lowest yields (14.5 Mg/ha) under 224 kg/ha. Flow‐weighted nitrate‐N concentration was significantly higher under 168 kg N/ha (10.6 mg/L) relative to higher application rates, though cumulative tile nitrate‐N loads were similar. SHI varied more by sampling location and time than by N application rate. Depending on the time of sampling, distinct SHI were related to yield and tile N losses. Total soil carbon and permanganate oxidizable carbon (POXC) best explained yield variation, whereas POXC and sand content best explained variation in nitrate‐N loss. Nematode indices helped explain variability in yield (Simpson, Shannon) and nitrate‐N losses (Maturity), supporting recent propositions to integrate nematode measures into soil health assessments. This study provides a basis for expanding to multiyear assessments of SHI linkages with nutrient losses and crop productivity in the North Central US.This article is protected by copyright. All rights reserved","PeriodicalId":22142,"journal":{"name":"Soil Science Society of America Journal","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49428553","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}
A. Patrignani, B. Ghanbarian, G. Kluitenberg, N. Parker
P‐EMA model to improve our ability to model thermal conductivity in undisturbed soil from percolation principles. Soil thermal conductivity was estimated using the percolation‐based effective‐medium approximation (P‐EMA) model. We used a dataset of soil thermal properties measured in 38 undisturbed soil samples. The P‐EMA model resulted in a root mean square error (RMSE) ranging from 0.029 to 0.158 W m−1 K−1, which was similar to the widely used Johansen model This article is protected by copyright. All rights reserved
P‐EMA模型，以提高我们根据渗流原理模拟原状土壤热导率的能力。使用基于渗流的有效介质近似（P-EMA）模型估算土壤热导率。我们使用了38个未扰动土壤样本中测得的土壤热特性数据集。P‐EMA模型的均方根误差（RMSE）范围为0.029至0.158 W m−1 K−1，与广泛使用的Johansen模型相似。本文受版权保护。保留所有权利
{"title":"Validation of the Percolation‐Based Effective‐Medium Approximation Model to Estimate Soil Thermal Conductivity","authors":"A. Patrignani, B. Ghanbarian, G. Kluitenberg, N. Parker","doi":"10.1002/saj2.20585","DOIUrl":"https://doi.org/10.1002/saj2.20585","url":null,"abstract":"P‐EMA model to improve our ability to model thermal conductivity in undisturbed soil from percolation principles.\u0000\u0000Soil thermal conductivity was estimated using the percolation‐based effective‐medium approximation (P‐EMA) model.\u0000We used a dataset of soil thermal properties measured in 38 undisturbed soil samples.\u0000The P‐EMA model resulted in a root mean square error (RMSE) ranging from 0.029 to 0.158 W m−1 K−1, which was similar to the widely used Johansen model\u0000This article is protected by copyright. All rights reserved","PeriodicalId":22142,"journal":{"name":"Soil Science Society of America Journal","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48304389","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}
Busayo Kodaolu, I. Mohammed, A. Gillespie, Y. Audette, James G. Longstaffe
Recycling of organic wastes for agricultural production has been recommended as a sustainable way to close the phosphorus (P) cycle. This study seeks to characterize the P forms in organic fertilizers derived from agricultural and non‐agricultural source materials to understand how these organic fertilizers will affect corn growth and soil available P. Organic fertilizers including turkey litter compost (TLC), biosolid pellets (BSP) and source separated organic compost (SSO) were applied to a sandy loam soil and compared to controls that received no nutrients or chemical fertilizer. Results from sequential chemical extractions and x‐ray absorption near edge structure spectroscopy revealed that most of the P species are inorganic, with SSO and TLC containing primarily Ca‐P and Mg‐P forms, while the P in the BSP treatments were mostly associated with Al. The two chemical fertilizer treatments had the greatest impact on corn height at the initial growth stage, however, after 42 days, corn height was similar for the organic fertilizers and chemical treatment. This initial slow response from the organic fertilizer treatments reduced the grain yield compared to chemical treatment. The results of this study suggest that priority should be given to sufficient P availability at the initial growth stage. Overall, organic fertilizer is a promising P source for grain crop production, but calibration and correlation studies are needed to ensure optimum supply of P for the initial growth stage.This article is protected by copyright. All rights reserved
{"title":"Phosphorus availability and corn (Zea mays L.) response to application of P‐based commercial organic fertilizers to a calcareous soil","authors":"Busayo Kodaolu, I. Mohammed, A. Gillespie, Y. Audette, James G. Longstaffe","doi":"10.1002/saj2.20587","DOIUrl":"https://doi.org/10.1002/saj2.20587","url":null,"abstract":"Recycling of organic wastes for agricultural production has been recommended as a sustainable way to close the phosphorus (P) cycle. This study seeks to characterize the P forms in organic fertilizers derived from agricultural and non‐agricultural source materials to understand how these organic fertilizers will affect corn growth and soil available P. Organic fertilizers including turkey litter compost (TLC), biosolid pellets (BSP) and source separated organic compost (SSO) were applied to a sandy loam soil and compared to controls that received no nutrients or chemical fertilizer. Results from sequential chemical extractions and x‐ray absorption near edge structure spectroscopy revealed that most of the P species are inorganic, with SSO and TLC containing primarily Ca‐P and Mg‐P forms, while the P in the BSP treatments were mostly associated with Al. The two chemical fertilizer treatments had the greatest impact on corn height at the initial growth stage, however, after 42 days, corn height was similar for the organic fertilizers and chemical treatment. This initial slow response from the organic fertilizer treatments reduced the grain yield compared to chemical treatment. The results of this study suggest that priority should be given to sufficient P availability at the initial growth stage. Overall, organic fertilizer is a promising P source for grain crop production, but calibration and correlation studies are needed to ensure optimum supply of P for the initial growth stage.This article is protected by copyright. All rights reserved","PeriodicalId":22142,"journal":{"name":"Soil Science Society of America Journal","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42741980","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}
Katherine D. McCool, S. M. Holub, Si Gao, Brett A. Morrissette, Jessica E. Blunn, A. Gallo, J. Hatten
Highly productive western Cascades forest soils are at risk of carbon and nitrogen losses from severe wildfire We found significant changes in forest floor and soil carbon stocks after wildfire Carbon stocks were approximately 40 Mg C ha−1 lower in the post‐fire period Two thirds of carbon differences (25 Mg C ha−1) were in the forest floor and one third (15 Mg C ha−1) was in the mineral soil This article is protected by copyright. All rights reserved
我们发现森林地面和土壤碳储量在森林火灾后发生了显著变化，碳储量在火灾后大约降低了40 Mg C ha - 1。三分之二的碳差异(25 Mg C ha - 1)在森林地面，三分之一(15 Mg C ha - 1)在矿物土壤。版权所有
{"title":"Quantifying impacts of forest fire on soil carbon in a young, intensively managed tree farm in the western Oregon Cascades","authors":"Katherine D. McCool, S. M. Holub, Si Gao, Brett A. Morrissette, Jessica E. Blunn, A. Gallo, J. Hatten","doi":"10.1002/saj2.20582","DOIUrl":"https://doi.org/10.1002/saj2.20582","url":null,"abstract":"\u0000Highly productive western Cascades forest soils are at risk of carbon and nitrogen losses from severe wildfire\u0000We found significant changes in forest floor and soil carbon stocks after wildfire\u0000Carbon stocks were approximately 40 Mg C ha−1 lower in the post‐fire period\u0000Two thirds of carbon differences (25 Mg C ha−1) were in the forest floor and one third (15 Mg C ha−1) was in the mineral soil\u0000This article is protected by copyright. All rights reserved","PeriodicalId":22142,"journal":{"name":"Soil Science Society of America Journal","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48766135","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}
Bailee B. Street, Alexandrea M. Rice, J. Richardson
{"title":"Forest Floor and Na azide effect on elements in leachate from contrasting New Hampshire and Virginia forest soils","authors":"Bailee B. Street, Alexandrea M. Rice, J. Richardson","doi":"10.1002/saj2.20580","DOIUrl":"https://doi.org/10.1002/saj2.20580","url":null,"abstract":"","PeriodicalId":22142,"journal":{"name":"Soil Science Society of America Journal","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48369513","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}
Sophie Perry, Grant Falvo, Samantha Mosier, G. Robertson
{"title":"Long‐term Changes in Soil Carbon and Nitrogen Fractions in Switchgrass, Native Grasses, and No‐till Corn Bioenergy Production Systems","authors":"Sophie Perry, Grant Falvo, Samantha Mosier, G. Robertson","doi":"10.1002/saj2.20575","DOIUrl":"https://doi.org/10.1002/saj2.20575","url":null,"abstract":"","PeriodicalId":22142,"journal":{"name":"Soil Science Society of America Journal","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45006576","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}
Fenghao Sun, Pingan Jiang, Zhi-Li Zhang, Shaolong Zhou, Jianfang Ou
{"title":"Structure and stability characteristics of zonal soil aggregates in the Three Rivers Source of the Qinghai‐Tibetan Plateau","authors":"Fenghao Sun, Pingan Jiang, Zhi-Li Zhang, Shaolong Zhou, Jianfang Ou","doi":"10.1002/saj2.20581","DOIUrl":"https://doi.org/10.1002/saj2.20581","url":null,"abstract":"","PeriodicalId":22142,"journal":{"name":"Soil Science Society of America Journal","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49429005","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}
V. Arachchige, T. McBeath, R. Smernik, G. Hettiarachchi, R. A. Khalil
{"title":"The Effect of Metal Oxide Coating of Urea on Mineralization in Two Contrasting Soils","authors":"V. Arachchige, T. McBeath, R. Smernik, G. Hettiarachchi, R. A. Khalil","doi":"10.1002/saj2.20576","DOIUrl":"https://doi.org/10.1002/saj2.20576","url":null,"abstract":"","PeriodicalId":22142,"journal":{"name":"Soil Science Society of America Journal","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46512700","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":"Modelling the response of a field probe for non‐destructive measurements of the magnetic susceptibility of soils","authors":"D. Zumr, Tailin Li, J. A. Gómez, G. Guzmán","doi":"10.1002/saj2.20578","DOIUrl":"https://doi.org/10.1002/saj2.20578","url":null,"abstract":"","PeriodicalId":22142,"journal":{"name":"Soil Science Society of America Journal","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42511284","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}
Chuanghe Miao, Hu Zhou, Hui Rong, Jianying Shang, Yizhong Lv
{"title":"Fractionation and transport of compost‐derived dissolved organic matter fractions in saturated red soil and black soil columns","authors":"Chuanghe Miao, Hu Zhou, Hui Rong, Jianying Shang, Yizhong Lv","doi":"10.1002/saj2.20579","DOIUrl":"https://doi.org/10.1002/saj2.20579","url":null,"abstract":"","PeriodicalId":22142,"journal":{"name":"Soil Science Society of America Journal","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46311363","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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