European Agrophysical Journal最新文献

Impact of different cover crops and termination methods on collard yield 不同覆盖作物及终止方式对羽衣甘蓝产量的影响

European Agrophysical Journal Pub Date : 2020-01-12 DOI: 10.17830/J.EAJ.2019.06.60

T. Kornecki

{"title":"Impact of different cover crops and termination methods on collard yield","authors":"T. Kornecki","doi":"10.17830/J.EAJ.2019.06.60","DOIUrl":"https://doi.org/10.17830/J.EAJ.2019.06.60","url":null,"abstract":"A three-year experiment was conducted in Cullman, AL, to determine the impact of iron clay pea, sunn-hemp, soybean, velvet Bean, sorghum Sudan, and pearl millet cover crops terminated with two methods (rolling and flail mowing) on collard (brassica oleracea var. acephala, L.) yield. Overall, each of the three growing seasons (2013, 2014, and 2015) produced significant differences in cover crop biomass production among cover crops. Across three growing seasons sorghum Sudan and Pearl Millet generated the highest biomass (23,752 and 23,333 kg ha -1 respectively). During the same period, sunn hemp produced 10,908 kg/ha -1 and soybean, velvet bean and iron clay pea produced lower biomass (6,754, 6,068, and 4,360 kg ha -1 , respectively). Termination rates of cover crops used in this study were mostly below 90%. Termination rates above 90% have been recommended by agricultural extension services to plant cash crop into cover crop residue. In all three growing seasons volumetric soil moisture content during evaluation have showed that plots with rolled residue consistently held more VMC than the standing cover crops, indicating that rolled cover crop residue better preserved soil moisture content. Collard green yield was significantly different in each growing season for different covers and termination methods. Averaged over three growing seasons, the highest collard yield was observed for iron clay pea (12,623 kg ha -1 ), Velvet bean (11,020 kg ha -1 ) and sunn hemp (10,802 kg ha -1 ). Data suggest that higher collard yield was obtained with legume cover crops with the benefit of released nitrogen into the soil and utilized by collards. In addition, across all years, the average collard green yield was higher for cover crops which were flail mowed (11,875 kg ha -1 ) compared to rolled/crimped cover crops (7,349 kg ha -1 ).","PeriodicalId":30775,"journal":{"name":"European Agrophysical Journal","volume":"38 1","pages":"50-66"},"PeriodicalIF":0.0,"publicationDate":"2020-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90422913","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: 0

Effect of multi-periodic and chaotic magnetic fields on plants’ growth from germination to harvest: experiment on bean (phaseolus vulgaris) 多周期和混沌磁场对植物萌发至收获生长的影响——以菜豆为试验对象

European Agrophysical Journal Pub Date : 2019-09-25 DOI: 10.17830/J.EAJ.2019.06.40

Thomas Moungang Noula, R. Tchitnga, Nguazon Tekou, A. Fomethe

{"title":"Effect of multi-periodic and chaotic magnetic fields on plants’ growth from germination to harvest: experiment on bean (phaseolus vulgaris)","authors":"Thomas Moungang Noula, R. Tchitnga, Nguazon Tekou, A. Fomethe","doi":"10.17830/J.EAJ.2019.06.40","DOIUrl":"https://doi.org/10.17830/J.EAJ.2019.06.40","url":null,"abstract":"In this work, we studied the impact of electromagnetic fields of various periods on the germination, growth and production of bean (phaseolus vulgaris). The magnetization of the seeds was carried out as soon as it was placed underground in field conditions. Plant growth until pod formation was monitored under field conditions on an experimental surface of 10.0 m 2 . The electrical circuits used for magnetization made it possible to obtain electromagnetic fields of period 1, 2 and 4 as well as a non-linear or chaotic electromagnetic field. Daily 24-hour exposure with these different signals has influenced some growth parameters. The height difference was significant (at P <0.05) for the comparison between A0 and A2. We found a production time saving of approximately ten (10) days for the A4 treatment compared to the control treatment A0. Experience has shown that plants subject to the chaotic field (A5) formed the largest number of pods. The comparison between the maximum number of pods formed and the number of pods that reached maturity for each treatment showed pod losses during the last growth phase. The loss rate was 29.25%, 28.31%, 35.78%, 64.38% and 62.72% respectively for A0, A1, A2, A4 and A5 treatments.","PeriodicalId":30775,"journal":{"name":"European Agrophysical Journal","volume":"1 1","pages":"30-45"},"PeriodicalIF":0.0,"publicationDate":"2019-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74682344","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: 2

Zonal yield expectation maps for Precision Agriculture generated using a combined Fuzzy-Expert system 基于模糊专家系统的精准农业分区产量期望图

European Agrophysical Journal Pub Date : 2019-04-12 DOI: 10.17830/J.EAJ.2019.06.15

W. Mirschel, K. Wenkel, R. Wieland, J. Bobert

{"title":"Zonal yield expectation maps for Precision Agriculture generated using a combined Fuzzy-Expert system","authors":"W. Mirschel, K. Wenkel, R. Wieland, J. Bobert","doi":"10.17830/J.EAJ.2019.06.15","DOIUrl":"https://doi.org/10.17830/J.EAJ.2019.06.15","url":null,"abstract":"The development of procedures which facilitate the determination of realistic yield expectations for management units within agricultural fields represents a scientific challenge. For this an applicable and scenario-apt Fuzzy-Expert system was developed. The procedure for generation of sites-specific yield expectation maps is divided into three methodical steps – step 1: estimation of yield potential, step 2: influences of pre-crop and crop variety and step 3: influence of site-specific parameters. The regional approach takes into account physical parameters as well as meteorological input data or results of variety testing trials for prediction of regional average yields. This prediction is starting point for the joined site-specific fuzzy model. For yield estimation site-specific heterogeneity spatial information of parameter influencing yield formation are taken into account. Physical soil parameter (plant available water, potential capillary rise, ground water table, landform attributes) are used to generate the site specific yield expectation map. This map is generated using the Spatial Analysis and Modeling Tool (SAMT). A method for training of the fuzzy model is described. The procedure was tested on a 45 ha field cropped with winter wheat in a Chernozem area of Saxony-Anhalt in East-Germany for the years 2000 and 2005.","PeriodicalId":30775,"journal":{"name":"European Agrophysical Journal","volume":"4 1","pages":"12-22"},"PeriodicalIF":0.0,"publicationDate":"2019-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84714390","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: 0

History of Agrophysics: Journal Version of the Book "N. F. Bondarenko" (Part 4.1) 农业物理学的历史:期刊版的书“N. F. Bondarenko”(第4.1部分)

European Agrophysical Journal Pub Date : 2019-03-31 DOI: 10.17830/J.EAJ.2019.06.025

D. Kurtener, Ann M. Krueger

引用次数: 0

Innovative method for cover crop termination using engine exhaust heat 利用发动机废气热终止覆盖作物的创新方法

European Agrophysical Journal Pub Date : 2018-12-30 DOI: 10.17830/J.EAJ.2018.05.150

T. Kornecki, S. Prior, G. Runion

{"title":"Innovative method for cover crop termination using engine exhaust heat","authors":"T. Kornecki, S. Prior, G. Runion","doi":"10.17830/J.EAJ.2018.05.150","DOIUrl":"https://doi.org/10.17830/J.EAJ.2018.05.150","url":null,"abstract":"Proper management of cover crops in conservation system is the key to achieving effective no-till planting of cash crops into desiccated residue cover without interfering with planting operations. One method of cover crop management is mechanical termination utilizing a rolling/crimping technique to injure the plant with the crimping bars without cutting stems. Another method is to injure plants using a heat source. To evaluate this concept at a small farm scale, a mechanical pusher using exhaust heat from the internal combustion gasoline engine with supplemental heat from heater strips was developed to terminate cover crops. The prototype was developed for a walk-behind tractor powered by a single cylinder gasoline engine. Heat to damage plant tissue was directed from the exhaust manifold to a rectangular perforated delivery steel tube that was in continuous contact with the cover crop that had been flattened by the pusher. In addition, a generator powered by the tractor’s PTO provided electrical energy for three parallel supplemental heater strips. Results demonstrated that using exhaust heat (otherwise lost to the environment) is a viable option to manage cover crops.","PeriodicalId":30775,"journal":{"name":"European Agrophysical Journal","volume":"24 1","pages":"145-156"},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89152390","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: 0

Application of Fuzzy Sets Theory for Searching Area of Correlation between Breeding and Background Traits 模糊集理论在育种性状与背景性状相关区域搜索中的应用

European Agrophysical Journal Pub Date : 2018-09-23 DOI: 10.17830/J.EAJ.2018.05.120

D. Kurtener, V. Dragavtsev

引用次数: 0

The Influence of Changes in the Vertical Acceleration of Tractor Unit on Soil Compaction during Field Operations 田间作业中拖拉机垂直加速度变化对土壤压实的影响

European Agrophysical Journal Pub Date : 2018-09-23 DOI: 10.17830/J.EAJ.2018.05.125

Artiomov Artiomov

引用次数: 0

History of Agrophysics: A. V. Kurtener Archive (Part 1) 农业物理学的历史:a.v. Kurtener档案(第一部分)

European Agrophysical Journal Pub Date : 2018-04-03 DOI: 10.17830/j.eaj.2018.05.005

D. Kurtener

引用次数: 0

China Branch of the European Agrophysical Institute (CBEAI): the first steps of research activity 欧洲农业物理研究所(CBEAI)中国分会:研究活动的第一步

European Agrophysical Journal Pub Date : 2018-03-31 DOI: 10.17830/J.EAJ.2018.05.045

D. Kurtener, C. Dianxiong, S. Tsukanov, Yi-Hu Xiao, U. Werner, Yu Zheng

引用次数: 0

History of Agrophysics: A. V. Kurtener Archive (Part 3) 农业物理学的历史:a.v. Kurtener档案(第三部分)

European Agrophysical Journal Pub Date : 2018-01-01 DOI: 10.17830/j.eaj.2018.05.035

D. Kurtener

引用次数: 0