Journal of Sustainable Agriculture最新文献_第5页

Effect of Cover Crops on Aphids, Whiteflies, and Their Associated Natural Enemies in Organic Squash 覆盖作物对有机南瓜蚜虫、粉虱及其伴生天敌的影响

Journal of Sustainable Agriculture Pub Date : 2012-04-01 DOI: 10.1080/10440046.2011.611586

C. A. Mcneill, O. Liburd, C. Chase

引用次数: 6

Evaluating Yam-Based Cropping Systems Using Herbaceous Leguminous Plants in the Savannah Transitional Agroecological Zone of Benin 贝宁萨凡纳农业生态过渡带以薯类植物为主的豆科植物种植系统评价

Journal of Sustainable Agriculture Pub Date : 2012-04-01 DOI: 10.1080/10440046.2011.646352

R. Maliki, B. Sinsin, A. Floquet

引用次数: 6

Cover Crops in Mono- and Biculture for Accumulation of Biomass and Soil Organic Carbon 单、双栽培覆盖作物对生物量和土壤有机碳积累的影响

Journal of Sustainable Agriculture Pub Date : 2012-04-01 DOI: 10.1080/10440046.2011.627991

Qingren Wang, Yuncong C. Li, A. Alva

{"title":"Cover Crops in Mono- and Biculture for Accumulation of Biomass and Soil Organic Carbon","authors":"Qingren Wang, Yuncong C. Li, A. Alva","doi":"10.1080/10440046.2011.627991","DOIUrl":"https://doi.org/10.1080/10440046.2011.627991","url":null,"abstract":"Plant biomass production associated with soil organic carbon (C) accumulation is a critical challenge for sustainable agriculture development because soil quality degradation and organic carbon pool depletion have become a concern under some circumstances. To elucidate cover crops and their synergetic effects in biomass production and soil organic C improvement, legume and non-legume winter/summer cover crops, in mono- and biculture (mixture of legume/non-legume) were evaluated in the field and controlled (growth chamber) conditions. Under field conditions, biculture of sunn hemp and sorghum sudangrass produced 24.1 Mg ha−1 in contrast to 20.1 and 2.9 Mg ha−1 for each one alone; and biculture of okra and cowpea reached as much as 11.5 Mg ha−1 in contrast to 2.0 and 5.3 Mg ha−1 for each one in monoculture. After the growth of winter followed by summer cover crops, the soil organic C content increased with substantial quantities of plant biomass returned to the soil. The results suggest that both summer and winter cover crops demonstrate a promising potential in biomass C accumulation, thereby, can play an important role in soil fertility improvement to benefit the sustainable development of agriculture when appropriate types and combinations are selected.","PeriodicalId":50032,"journal":{"name":"Journal of Sustainable Agriculture","volume":"36 1","pages":"423 - 439"},"PeriodicalIF":0.0,"publicationDate":"2012-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/10440046.2011.627991","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59669503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Comparison of Organic and Conventional Pest Management Practices Among California Citrus Growers 加州柑橘种植户有机与常规有害生物管理方法的比较

Journal of Sustainable Agriculture Pub Date : 2012-04-01 DOI: 10.1080/10440046.2011.646353

K. Grogan

引用次数: 4

Alternative Strategies for Transitioning to Organic Production in Direct-Seeded Grain Systems in Eastern Washington II: Nitrogen Fertility 华盛顿东部直接播种粮食系统向有机生产过渡的替代战略II:氮肥力

Journal of Sustainable Agriculture Pub Date : 2012-04-01 DOI: 10.1080/10440046.2011.646354

Kristy Borrelli, R. Koenig, R. Gallagher, Dennis Pittmann, Amanda Snyder, I. Burke, L. Hoagland, E. Fuerst

引用次数: 9

Improving Sustainable Production of Maize on Upland Soils of the Democratic People's Republic of Korea 改善朝鲜民主主义人民共和国旱地玉米的可持续生产

Journal of Sustainable Agriculture Pub Date : 2012-04-01 DOI: 10.1080/10440046.2011.620228

J. Evans, J. Jo, M. Conyers, Y. G. Mun, P. Eberbach, S. Paek, Y. Ri, S. Ko, B. Orchard, Y. Ryang, D. Jong, T. R. Kim, E. Wolfe

引用次数: 2

Redesigning Agroecosystems 重新设计农业生态系统

Journal of Sustainable Agriculture Pub Date : 2012-04-01 DOI: 10.1080/10440046.2012.662583

S. Gliessman

{"title":"Redesigning Agroecosystems","authors":"S. Gliessman","doi":"10.1080/10440046.2012.662583","DOIUrl":"https://doi.org/10.1080/10440046.2012.662583","url":null,"abstract":"An important premise of agroecology is that, in order to transition toward sustainability, it is necessary to redesign agroecosystems so that they can function on the basis of a different set of ecological principles. These principles are grounded in interaction, complementarity, and relationships in systems that give the ability to resist the problems that industrial agriculture controls with an impressive array of inputs and practices. Even organic systems depending primarily on the substitution of these inputs and practices with those accepted by organic certification organizations encounter the same set of problems, especially when the cropping system is reduced in diversity. Increase the size and scale of the operation, as has become the case for some commercial organic monocultures, and input intensity goes up even more as problems become more difficult to manage. Working collaboratively, teams of farmers and agroecologists have begun to test these different designs and, in the process, are gathering scientific data and practical experience that provide examples of how the redesign process can work. The research experiences presented in this issue of JSA are some of these examples. By adding covercrops, associated and intercropped species, or alternative rotations, there is a chance for some of the complexity needed for ecosystem processes to be successful. Be it for pest management, disease control, or fertility maintenance, these processes internalize input management and reduce the dependence of the agroecosystem on external sources. JSA hopes that more farmer and researcher teams will continue to test more complexity and interactions, and that the journal can be a place to report their results.","PeriodicalId":50032,"journal":{"name":"Journal of Sustainable Agriculture","volume":"36 1","pages":"381 - 381"},"PeriodicalIF":0.0,"publicationDate":"2012-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/10440046.2012.662583","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59669462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Comparison of Twelve Organic and Conventional Farming Systems: A Life Cycle Greenhouse Gas Emissions Perspective 12种有机和传统农业系统的比较:生命周期温室气体排放的视角

Journal of Sustainable Agriculture Pub Date : 2012-03-28 DOI: 10.1080/10440046.2012.672378

K. Venkat

{"title":"Comparison of Twelve Organic and Conventional Farming Systems: A Life Cycle Greenhouse Gas Emissions Perspective","authors":"K. Venkat","doi":"10.1080/10440046.2012.672378","DOIUrl":"https://doi.org/10.1080/10440046.2012.672378","url":null,"abstract":"Given the growing importance of organic food production, there is a pressing need to understand the relative environmental impacts of organic and conventional farming methods. This study applies standards-based life cycle assessment to compare the cradle-to-farm gate greenhouse gas emissions of 12 crop products grown in California using both organic and conventional methods. In addition to analyzing steady-state scenarios in which the soil organic carbon stocks are at equilibrium, this study models a hypothetical scenario of converting each conventional farming system to a corresponding organic system and examines the impact of soil carbon sequestration during the transition. The results show that steady-state organic production has higher emissions per kilogram than conventional production in seven out of the 12 cases (10.6% higher overall, excluding one outlier). Transitional organic production performs better, generating lower emissions than conventional production in seven cases (17.7% lower overall) and 22.3% lower emissions than steady-state organic. The results demonstrate that converting additional cropland to organic production may offer significant GHG reduction opportunities over the next few decades by way of increasing the soil organic carbon stocks during the transition. Nonorganic systems could also improve their environmental performance by adopting management practices to increase soil organic carbon stocks.","PeriodicalId":50032,"journal":{"name":"Journal of Sustainable Agriculture","volume":"36 1","pages":"620 - 649"},"PeriodicalIF":0.0,"publicationDate":"2012-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/10440046.2012.672378","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59669558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 128

Are Smallholder Zambian Farmers Economists? A Dual-Analysis of Farmers’ Expenditure in Conservation and Conventional Agriculture Systems 赞比亚小农是经济学家吗?保护性农业与传统农业农民支出的双重分析

Journal of Sustainable Agriculture Pub Date : 2012-03-28 DOI: 10.1080/10440046.2012.661700

B. B. Umar, J. Aune, F. Johnsen, I. Lungu

引用次数: 35

Open-Pollinated Seed Exchange: Renewed Ozark Tradition as Agricultural Biodiversity Conservation 开放授粉种子交换:作为农业生物多样性保护的奥扎克传统的更新

Journal of Sustainable Agriculture Pub Date : 2012-03-28 DOI: 10.1080/10440046.2011.630776

B. Campbell

引用次数: 21