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Impact of substrate pH and micronutrient fertility rates on Cannabis sativa 基质pH和微量元素对大麻育性的影响
IF 1.3
Agrosystems, Geosciences & Environment Pub Date : 2025-02-21 DOI: 10.1002/agg2.70044
Patrick Veazie, Paul Cockson, J. Turner Smith, Brian Schulker, Brian Jackson, Kristin Hicks, Brian Whipker
{"title":"Impact of substrate pH and micronutrient fertility rates on Cannabis sativa","authors":"Patrick Veazie,&nbsp;Paul Cockson,&nbsp;J. Turner Smith,&nbsp;Brian Schulker,&nbsp;Brian Jackson,&nbsp;Kristin Hicks,&nbsp;Brian Whipker","doi":"10.1002/agg2.70044","DOIUrl":"https://doi.org/10.1002/agg2.70044","url":null,"abstract":"<p>Micronutrient accumulation caused by low pH can lead to toxicity and have detrimental impacts on plant growth. In substrates with elevated pH, micronutrients become less available. In the first experiment, industrial hemp (<i>Cannabis sativa</i> L.) growth was less at pH 3.0 and 4.0 than when pH was ≥5.0. Root growth was also observed to be inhibited at low pH levels. Leaf tissue micronutrient concentrations were higher at the lowest pH level, but no toxic accumulation occurred. In experiment 2, root growth had less mass at the lowest pH (3.1) and highest pH level (7.1). In experiment 3, substrates with three target pHs (3.8, 4.8, and 6.5) as well as three micronutrient concentrations (1X, 2X, and 4X) were examined to determine the impact of pH on micronutrient accumulation in two cultivars Cherry Wine (CW) and Sweetened (SW). Foliar micronutrient concentrations were the greatest in plants grown with pH 3.8, and the lowest concentrations occurred in plants grown at pH 6.5. Susceptibility to toxicity from micronutrient accumulation in plant tissue varied by cultivar. SW plants grown at pH 3.8 and 4X micronutrients resulted in lower leaf micronutrient toxicity symptoms, while CW plants grown under the same conditions did not. These studies suggest that <i>C. sativa</i> does not accumulate micronutrients to toxic levels at low pH when micros are applied within normal growing ranges, but that growth is inhibited at substrate pH &lt; 5.0.</p>","PeriodicalId":7567,"journal":{"name":"Agrosystems, Geosciences & Environment","volume":"8 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agg2.70044","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cover crop and tillage effects on soil microbial communities in a corn cropping system 覆盖作物和耕作方式对玉米种植系统土壤微生物群落的影响
IF 1.3
Agrosystems, Geosciences & Environment Pub Date : 2025-02-18 DOI: 10.1002/agg2.70054
S. S. Mendis, R. P. Udawatta, M. P. Davis, B. Gurmessa, M. Salceda, M. E. Herget
{"title":"Cover crop and tillage effects on soil microbial communities in a corn cropping system","authors":"S. S. Mendis,&nbsp;R. P. Udawatta,&nbsp;M. P. Davis,&nbsp;B. Gurmessa,&nbsp;M. Salceda,&nbsp;M. E. Herget","doi":"10.1002/agg2.70054","DOIUrl":"https://doi.org/10.1002/agg2.70054","url":null,"abstract":"<p>Soil microbial communities have numerous soil ecological and physiological functions. However, knowledge is lacking on the interaction effects of no-till and cover crops (CC) practices on these soil health indicators. This study evaluated the effects of CC and tillage on soil microbial communities in a corn (<i>Zea mays</i> L.) system. The study was conducted for 2 consecutive years on plots allotted to three practices: (1) no-till and cover crop (NC), (2) conventional till and no cover crop (CN), and (3) no-till no cover crop (NN). A grass strip (G) was used as a reference, assuming it was subjected to the least disturbance. Surface (0–5 cm and 5–10 cm) soils were sampled over 2 years in April and October. Soil microbial biomass was measured using phospholipid fatty acid (PLFA) analysis. Seasonal variations indicated greater microbial biomass in fall than in spring. The G and NC significantly increased soil microbial biomass at both depths compared to CN and NN during fall 2021 sampling and numerically in fall 2020, where greater changes were observed at 0- to 5-cm depth. In fall 2021 sampling, NC practices had 65%–75% more total microbial biomass than CN and NN at both depths (<i>p</i> &lt; 0.001), with total bacterial biomass 70% greater (<i>p</i> &lt; 0.002) and total fungal biomass 75%–85% greater (<i>p</i> &lt; 0.007). NC also showed 85% more actinomycetes biomass than CN at 5- to 10-cm depth (<i>p</i> &lt; 0.05). The study concluded that soil microbial communities significantly improved after two CC seasons, with higher microbial biomass in fall compared to spring.</p>","PeriodicalId":7567,"journal":{"name":"Agrosystems, Geosciences & Environment","volume":"8 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agg2.70054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating triclopyr vapor and particle drift in roadside settings 调查三氯吡啶蒸气和粒子在路边的漂移
IF 1.3
Agrosystems, Geosciences & Environment Pub Date : 2025-02-17 DOI: 10.1002/agg2.70052
Estefania G. Polli, Travis W. Gannon, Ronald R. Rogers, Mathieu C. LeCompte, Khalied Ahmed
{"title":"Investigating triclopyr vapor and particle drift in roadside settings","authors":"Estefania G. Polli,&nbsp;Travis W. Gannon,&nbsp;Ronald R. Rogers,&nbsp;Mathieu C. LeCompte,&nbsp;Khalied Ahmed","doi":"10.1002/agg2.70052","DOIUrl":"https://doi.org/10.1002/agg2.70052","url":null,"abstract":"<p>Triclopyr is a synthetic auxin herbicide widely used to manage roadside vegetation due to its effective, selective, and prolonged action on broadleaf species, as well as its low toxicity to humans and animals. However, if triclopyr drifts from the roadside into agricultural lands, it can result in injury and yield loss of sensitive crops. The objective of this study was to characterize and quantify particle and vapor drift of triclopyr as influenced by formulation, season, and nozzle type under roadside conditions. Field studies were conducted on a roadside located along Interstate 540 in Morrisville, NC, in 2022 and 2023. Triclopyr amine and choline were applied at 3363 g a.e. ha<sup>−1</sup> using Boominator and Nutating nozzles. Active air samplers were used to collect vapor drift within 48 h after application, while deposit cards were used to collect particle drift 10 min after application. Triclopyr vapor concentration peaked within the first 24 h after application, with the concentration of triclopyr amine being 29% higher than triclopyr choline during this period. Additionally, vapor concentrations of triclopyr were higher during spring and summer compared to fall and winter. No differences in triclopyr particle deposit and drift distance were observed between formulation and nozzle type. Triclopyr was detected at very low levels (&lt; 2% of field rate) within 3 m from the treated area. This study provides valuable insight into triclopyr volatilization, emphasizing temporal, formulation, and seasonal variations, while also addressing the consistency in particle drift between triclopyr formulations and nozzle types.</p>","PeriodicalId":7567,"journal":{"name":"Agrosystems, Geosciences & Environment","volume":"8 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agg2.70052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143424067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of the spatial distribution and association of banana wilt (Fusarium oxysporum f. sp. cubense) with biophysical factors in Gamo zone, southern Ethiopia 埃塞俄比亚南部加莫地区香蕉枯萎病(Fusarium oxysporum f. sp. cubense)的空间分布及其与生物物理因子的关系分析
IF 1.3
Agrosystems, Geosciences & Environment Pub Date : 2025-02-13 DOI: 10.1002/agg2.70053
Zelalem Bekeko, Biruk Kedir, Chemeda Fininsa
{"title":"Analysis of the spatial distribution and association of banana wilt (Fusarium oxysporum f. sp. cubense) with biophysical factors in Gamo zone, southern Ethiopia","authors":"Zelalem Bekeko,&nbsp;Biruk Kedir,&nbsp;Chemeda Fininsa","doi":"10.1002/agg2.70053","DOIUrl":"https://doi.org/10.1002/agg2.70053","url":null,"abstract":"<p>Banana wilt, caused by <i>Fusarium oxysporum</i> f. sp<i>. cubense</i> (Foc), is one of the most important diseases of banana (<i>Musa</i> L.) worldwide including Ethiopia. Foc is responsible for sever yield losses of up to 90% in commercial and local banana cultivars planted in southern Ethiopia. However, there is limited research information about its epidemiology, distribution, and relative importance of the disease in the country particularly in Gamo zone, southern Ethiopia, where banana is dominantly grown. Hence, this study was conducted to investigate and analyze the distribution, importance, and intensity of the disease and its association with biophysical factors. Fields surveys were conducted in three major banana-growing districts of Gamo zone in Arba Minch Zuria, Mirab Abaya, and Daramalo during the 2019/2020 cropping season in which a total of 90 fields were surveyed. The association of the disease incidence and severity with independent variables was analyzed using a logistic regression model in SAS under the GENMOD procedures. The results of the survey study indicated that Fusarium wilt was widely distributed all the three districts, regardless of agro-ecological factors. The highest mean incidence (47.37%) and severity (46.31%) values were recorded at Daramalo, while the lowest incidence (20.75%) and severity (28.63%) values were recorded from Arba Minch Zuria district. Variables such as banana cultivars, age of plantations, weeding practices, and disease management methods were significantly associated with the incidence and severity of the disease. The use of improved cultivars reduced disease incidence by 43.60% and the severity by 30.10%, compared to that of local ones. Regression analysis of the biophysical factors with Fusarium wilt severity implied the necessity of effective and feasible integrated management options to be developed against the disease and as well as the importance of awareness raising with all stakeholders regarding its distribution, importance, and possible management options such as the usage of Foc-resistant varieties in the study area.</p>","PeriodicalId":7567,"journal":{"name":"Agrosystems, Geosciences & Environment","volume":"8 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agg2.70053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of Noah-MP performance with available soil information for vertically heterogenous soils 利用土壤信息评价垂直非均质土壤的Noah-MP性能
IF 1.3
Agrosystems, Geosciences & Environment Pub Date : 2025-02-12 DOI: 10.1002/agg2.70048
Yohannes Tadesse Yimam, Haly L. Neely, Cristine L. S. Morgan, Andrea Kishné, Jonathan Gross, David Gochis
{"title":"Evaluation of Noah-MP performance with available soil information for vertically heterogenous soils","authors":"Yohannes Tadesse Yimam,&nbsp;Haly L. Neely,&nbsp;Cristine L. S. Morgan,&nbsp;Andrea Kishné,&nbsp;Jonathan Gross,&nbsp;David Gochis","doi":"10.1002/agg2.70048","DOIUrl":"https://doi.org/10.1002/agg2.70048","url":null,"abstract":"<p>The increasing availability of modern digital soil databases provides an opportunity to integrate these data into land surface models (LSMs), such as Noah-MP, for a more realistic representation of soil in estimating mass and energy flux at the land-atmosphere boundary. Noah-MP uses a default soil parameter table and a texturally uniform vertical soil profile to a depth of 2 m. Previous research has revised this soil parameter table, and 95% of the values investigated were suggested to be replaced using updated pedotransfer functions and new datasets. In addition to updated parameters, most LSMs do not consider vertical heterogeneity in soil texture despite the widespread distribution of these soils globally. This research assessed both (1) revisions to the soil parameter table and (2) vertical soil heterogeneity, including the presence of bedrock, on simulated water and energy fluxes. At three locations across Texas, plant-available water (PAW) estimates from Noah-MP simulations were evaluated using in situ measurements. Due to the lack of water and energy flux data, soil water content values simulated by Noah-MP were compared with the output from another well-established model, Root Zone Water Quality Model 2 (RZWQM2). Results showed improving representation of soil improved Nash–Sutcliff efficiency coefficient, model bias, and root mean square difference of Noah-MP simulated PAW when compared with measured PAW and RZWQM2 simulated PAW. A maximum difference in annual evapotranspiration of 150 mm between simulations was observed. These results demonstrate the need for better accounting of soil knowledge in LSMs for modeling mass and energy exchange at the land-atmosphere boundaries.</p>","PeriodicalId":7567,"journal":{"name":"Agrosystems, Geosciences & Environment","volume":"8 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agg2.70048","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143396899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Applicability of soil pore size distribution derived from digital microscopy images to determination of water retention curve 由数字显微镜图像导出的土壤孔隙大小分布在水保持曲线测定中的适用性
IF 1.3
Agrosystems, Geosciences & Environment Pub Date : 2025-02-07 DOI: 10.1002/agg2.70049
Yuki Hayashi
{"title":"Applicability of soil pore size distribution derived from digital microscopy images to determination of water retention curve","authors":"Yuki Hayashi","doi":"10.1002/agg2.70049","DOIUrl":"https://doi.org/10.1002/agg2.70049","url":null,"abstract":"<p>Information on the water retention curve (WRC) is required for the numerical simulation of water flow; however, its acquisition is time- and cost-consuming. In this study, the applicability of two-dimensional (2D) image of soil taken by a digital microscope to WRC measurement was assessed. For this purpose, four undisturbed soil samples were collected at surface (10–15 cm) and undersurface (22.5–27.5 cm) depths to acquire 2D images and measure WRCs from the conventional method, pressure plate method. To derive the WRCs, soil pore-size distribution in soil images was manually extracted using the following three methods: In Methods 1 and 2, the fuzzy region and the dark region, respectively, in the image were assumed to be a soil pore, and in Method 3, the pore boundary, being assumed to be a bright part, connected the lines and divided the region into pores. Method 3 had much large-size pores (&gt;75 µm in radius) at deeper depths than at surface depths. This trend was the same as the pressure plate method. The WRCs in three methods were well fitted to the lognormal model. In all methods, the values of parameter of <i>θ</i><sub>e</sub> were larger at surface layers than at deeper depths, of which similar result was also seen in the pressure plate method. We discussed applicability of the parameters. It is effective to determine <i>θ</i><sub>e</sub> from the pressure plate method and the other parameters (<i>ψ</i><sub>m</sub> and <i>σ</i>) from the image-based method. From those analyses, it could be said to prove to obtain WRC from an image-based method.</p>","PeriodicalId":7567,"journal":{"name":"Agrosystems, Geosciences & Environment","volume":"8 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agg2.70049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Approximately 15% of Miscanthus yield is lost at current commercial cutting heights in Iowa 在爱荷华州目前的商业采伐高度下,大约有15%的芒草产量损失
IF 1.3
Agrosystems, Geosciences & Environment Pub Date : 2025-01-30 DOI: 10.1002/agg2.70039
Bryan Petersen, Shah-Al Emran, Fernando Miguez, Emily Heaton, Andy VanLoocke
{"title":"Approximately 15% of Miscanthus yield is lost at current commercial cutting heights in Iowa","authors":"Bryan Petersen,&nbsp;Shah-Al Emran,&nbsp;Fernando Miguez,&nbsp;Emily Heaton,&nbsp;Andy VanLoocke","doi":"10.1002/agg2.70039","DOIUrl":"https://doi.org/10.1002/agg2.70039","url":null,"abstract":"<p>Various works have quantitatively characterized the effects of environmental and management factors on <i>Miscanthus</i> <span></span><math>\u0000 <semantics>\u0000 <mo>×</mo>\u0000 <annotation>$times$</annotation>\u0000 </semantics></math> <i>giganteus</i> Greef et Deu (<i>mxg</i>) yield and, therefore, anticipated land requirement per unit production. However, little work has addressed the effects of cutting height, which may significantly contribute to the difference between the standing aboveground biomass at harvest (i.e., biological yield) and harvested yield. This study quantitatively characterized the effect of cutting height using a replicated nitrogen trial of a 5-year-old <i>mxg</i> stand in southeast Iowa and related this information to observations of cutting height in nearby commercial fields. Nitrogen fertilizer did not significantly change the relationship of the stem segment mass to length, and overall, a 1-cm stem segment contributes 0.5% of the total stem biomass within the bottom 44 cm of the stem. This results in an average harvest loss of 15% of the aboveground standing biomass when cutting at 30 cm, typically seen in commercial <i>mxg</i> fields in eastern Iowa. Cutting height should be considered when accurately predicting commercial <i>mxg</i> harvest yields and changes in soil organic carbon in a commercial <i>mxg</i> agroecosystem.</p>","PeriodicalId":7567,"journal":{"name":"Agrosystems, Geosciences & Environment","volume":"8 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agg2.70039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143121018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Paddy rice traits estimation under varying management strategies using UAV technology 利用无人机技术估算不同管理策略下的水稻性状
IF 1.3
Agrosystems, Geosciences & Environment Pub Date : 2025-01-30 DOI: 10.1002/agg2.70047
Daniel Muhindo, Joyce J. Lelei, Wivine Munyahali, Landry Cizungu, Sebastian Doetterl, Florian Wilken, Espoir Bagula, Nathan Okole, Boris Rewald, Samuel Mwonga
{"title":"Paddy rice traits estimation under varying management strategies using UAV technology","authors":"Daniel Muhindo,&nbsp;Joyce J. Lelei,&nbsp;Wivine Munyahali,&nbsp;Landry Cizungu,&nbsp;Sebastian Doetterl,&nbsp;Florian Wilken,&nbsp;Espoir Bagula,&nbsp;Nathan Okole,&nbsp;Boris Rewald,&nbsp;Samuel Mwonga","doi":"10.1002/agg2.70047","DOIUrl":"https://doi.org/10.1002/agg2.70047","url":null,"abstract":"<p>Timely crop monitoring and yield prediction are essential in guiding management decision making. The aim of the study was to estimate the agronomic traits of paddy rice (<i>Oryza sativa</i> L.) using unmanned aerial vehicle (UAV)-multispectral imaging. A randomized complete block design field experiment with a split–split plot arrangement was set up in the Ruzizi plain, Democratic Republic of Congo (DRC). Spectral imaging data were collected at rice tillering and panicle initiation stages. Predictive analysis of rice agronomic traits was performed using linear and decision tree-based machine learning techniques. Paddy rice trait predictions were critically sensitive to the timing of image acquisition but not largely affected by the model. The most accurate predictions were made at rice panicle initiation stage, with <i>R</i><sup>2</sup> values of 0.62, 0.65, and 0.75 for yield, aboveground biomass, and plant nitrogen (N) uptake, respectively. The visible atmospherically resistant index (VARI), modified chlorophyll absorption in reflective index, and ratio vegetation index, along with near infrared and green bands, played a critical role in predicting paddy rice N uptake and yield. The same spectral features associated with crop height and canopy data were essential for predicting paddy rice aboveground biomass. UAV-multispectral data were able to assess agricultural intensification strategies at field/landscape scale irrespective of soil types, watering regimes, and cultivars. Special consideration should be attributed to VARI, as it enables economical prediction of paddy rice traits. The UAV technologies are therefore reliable tools for monitoring rice production and can be applied in agricultural extension in the DRC.</p>","PeriodicalId":7567,"journal":{"name":"Agrosystems, Geosciences & Environment","volume":"8 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agg2.70047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143121017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The combination of irrigation regime and water cutoff date increases the yield and water use efficiency of castor bean (Ricinus communis L.) 灌溉制度与断水日期相结合可提高蓖麻产量和水分利用效率。
IF 1.3
Agrosystems, Geosciences & Environment Pub Date : 2025-01-27 DOI: 10.1002/agg2.70033
Alberto Mario Arroyo Avilez, Andres Felipe Gaona Acevedo, Luan Brioschi Giovanelli, João Carlos Cury Saad, Ícaro Monteiro Galvão, João Luis Zocoler, Mauricio Dutra Zanotto
{"title":"The combination of irrigation regime and water cutoff date increases the yield and water use efficiency of castor bean (Ricinus communis L.)","authors":"Alberto Mario Arroyo Avilez,&nbsp;Andres Felipe Gaona Acevedo,&nbsp;Luan Brioschi Giovanelli,&nbsp;João Carlos Cury Saad,&nbsp;Ícaro Monteiro Galvão,&nbsp;João Luis Zocoler,&nbsp;Mauricio Dutra Zanotto","doi":"10.1002/agg2.70033","DOIUrl":"https://doi.org/10.1002/agg2.70033","url":null,"abstract":"<p>Castor bean (<i>Ricinus communis</i> L.) is a fibrous and fast-growing plant with increasing economic importance due to its ability to generate energy and in the pharmaceutical and chemical industries. This research aimed to determine the best combination of irrigation regime and irrigation cutoff date (ICD) that maximizes grain and oil yields and water use efficiency (WUE) in the castor bean hybrid AG IMA 110204. The experiments were conducted in greenhouses in randomized blocks using subdivided plots and four replicates. The plots were allocated to five irrigation regimes based on soil water tension: 20, 30, 40, 50, and 60 kPa, corresponding to I1, I2, I3, I4, and I5, respectively. The subplots show the four ICDs: 120, 130, 140, and 150 days after sowing (DAS). The I1, I2, and I3 treatments showed the highest values and did not differ in the two cycles for the following variables: weight of 100 grains, grain yield, oil yield, WUE of the grain (WUE-grains), and WUE of the oil (WUE-oil). When the irrigation cutoff was 120 DAS, in both cycles, the water regimes I1, I2, and I3 presented the highest values and did not differ in terms of grain or oil yields or WUE-grains or WUE-oil. Higher grain and oil yields with lower water demand for castor bean were obtained with the combination of 40 kPa soil water tension to define the time of irrigation and the irrigation cutoff at 120 DAS.</p>","PeriodicalId":7567,"journal":{"name":"Agrosystems, Geosciences & Environment","volume":"8 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agg2.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of climate change stressors—temperature, CO2, and UV-B—on early growth and development of different cover crop species 气候变化胁迫因子-温度、CO2和uv - b对不同覆盖作物早期生长发育的影响
IF 1.3
Agrosystems, Geosciences & Environment Pub Date : 2025-01-21 DOI: 10.1002/agg2.70037
Tulsi P. Kharel, K. Raja Reddy, Akanksha Sehgal, Nisarga Kodadinne, Raju Bheemanahalli, Ammar B. Bhandari, Krishna N. Reddy, Wei Gao
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