Agronomy Journal最新文献_第3页

Identification of key meteorological factors influencing crop evapotranspiration using time-frequency domain analysis 利用时频分析识别影响作物蒸散的关键气象因子

IF 2 3区农林科学

Agronomy Journal Pub Date : 2025-05-22 DOI: 10.1002/agj2.70090

Xing Yang, Miao Hou

{"title":"Identification of key meteorological factors influencing crop evapotranspiration using time-frequency domain analysis","authors":"Xing Yang, Miao Hou","doi":"10.1002/agj2.70090","DOIUrl":"https://doi.org/10.1002/agj2.70090","url":null,"abstract":"Crop evapotranspiration (ETc) is a critical factor for understanding water demand in agricultural systems, influencing irrigation scheduling and water resource management. Identifying the meteorological factors influencing ETc is crucial for predicting variations in water needs and optimizing irrigation plans. Traditional correlation analysis methods, such as Pearson correlation, often fail to capture the time-frequency variations in ETc, which limits their ability to effectively identify the primary influencing factors. This study integrates the Penman–Monteith model, Pearson correlation analysis, wavelet analysis, and vector projection length calculation method to propose a comprehensive approach for identifying primary and secondary meteorological influences on ETc from a time-frequency perspective. Using rice (Oryza sativa) in the Gaoyou Irrigation District of Jiangsu Province, China, as a case study, the research examines seven meteorological factors—including air temperature, relative humidity, rainfall, and sunshine duration—along with four circulation indices, such as the East Asian Summer Monsoon index and ENSO index, from 1980 to 2021. The results indicate that sunshine duration and relative humidity are significant factors affecting the high-frequency and low-frequency signal components of local rice ETc, respectively. Additionally, other factors, such as minimum temperature, show strong correlations with ETc signals within specific frequency bands, positioning them as secondary influencing factors. This research presents a versatile framework that can be extended to other areas of hydrometeorology and beyond.","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144118175","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}

引用次数: 0

Actual evapotranspiration and variable crop coefficients for scheduling turfgrass irrigation 实际蒸散量和可变作物系数用于安排草坪草灌溉

IF 2 3区农林科学

Agronomy Journal Pub Date : 2025-05-22 DOI: 10.1002/agj2.70080

Bernd Leinauer, Dawn M. VanLeeuwen, Rossana Sallenave, Tatiana Kardashina, Dan Smeal

{"title":"Actual evapotranspiration and variable crop coefficients for scheduling turfgrass irrigation","authors":"Bernd Leinauer, Dawn M. VanLeeuwen, Rossana Sallenave, Tatiana Kardashina, Dan Smeal","doi":"10.1002/agj2.70080","DOIUrl":"https://doi.org/10.1002/agj2.70080","url":null,"abstract":"Turfgrass irrigation based on evaporative requirements strengthens water conservation efforts. A study was conducted from 1998 to 2000 to determine actual evapotranspiration (ETa) of warm and cool-season turfgrasses and to develop crop coefficient (KC) values normalized for growing degree days. Predicted values of maximum ETa and KC were calculated, and data from a second study were used to validate the fitted polynomial functions. Estimated ETa differed in 1998 and 1999 and ranged from 5.42 mm day−1 (Poa pratensis L. ‘Adelphi’ in 1998) to 6.69 mm day−1 (Lolium perenne L. ‘Seville’ in 1999) for cool-season turfgrasses (CS) and from 4.54 mm day−1 [Buchloe dactyloides (Nutt.) Engelm. ‘Bison’ in 1999] to 5.15 mm day−1 [Cynodon dactylon (L.) Pers. ‘Guymon’ in 1998] for warm-season turfgrasses (WS). For CS, between-year variation was greater than differences within years, but for WS, within-year differences were greater than between years. A quadratic function was used to model the trend in KC. For CS, KC differed among years, with similar trends in 1998 and 1999. Generally, values for CS ranged from 0.76 to 0.95 and for WS from 0.68 to 0.76. We were unable to establish a clear trend that would group both CS and WS into high water use versus low water use. If a variable KC based on our models had been applied during the 3-year period, irrigation amounts would have been reduced by approximately 10% for CS and by 15% for WS when compared to a constant KC.","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agj2.70080","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144118176","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}

引用次数: 0

Genotype by environment interaction in sesame germplasm in Mexico 墨西哥芝麻种质资源的环境互作基因型研究

IF 2 3区农林科学

Agronomy Journal Pub Date : 2025-05-21 DOI: 10.1002/agj2.70077

Romualdo Vásquez-Ortiz, Rocío Toledo-Aguilar, Fernando Castillo-González, Hilda Victoria Silva-Rojas, Ricardo Lobato-Ortiz, Ignacio Benítez-Riquelme

{"title":"Genotype by environment interaction in sesame germplasm in Mexico","authors":"Romualdo Vásquez-Ortiz, Rocío Toledo-Aguilar, Fernando Castillo-González, Hilda Victoria Silva-Rojas, Ricardo Lobato-Ortiz, Ignacio Benítez-Riquelme","doi":"10.1002/agj2.70077","DOIUrl":"https://doi.org/10.1002/agj2.70077","url":null,"abstract":"In Mexico, sesame (Sesamum indicum L.) is cultivated in rainfed environments with high temperatures and erratic precipitation. In these environments, there is low productivity due to the low availability of improved varieties; however, there is genetic diversity that can be used in programs for crop improvement. The objectives were to evaluate the grain yield per hectare (GY), variables associated with it, and the genotype × environment interaction (G × EI) in 50 sesame genotypes in four environments; these environments were integrated by Iguala and Zicapa in the spring–summer cycles 2021 and 2022 in Guerrero, Mexico; an alpha lattice design with three repetitions was used. The following analyses were conducted: combined analysis of variance, multivariate additive main effects and multiplicative interaction (AMMI), stability analysis, and Biplot G + G × EI. The combined analysis detected significant differences (p ≤ 0.01) for environment, genotype, and G × EI in every variable. The AMMI analysis showed greater variation in environment; the genotype component indicated 58.3% of variation of the GY and 24.8% of the G × EI. The coefficient of regression varied from 0.03 to 2.45, and the regression deviation was 0.03–0.26, with this indicating that the genotype had different responses to the environments. The Biplot G + G × EI with two components explained 80.75% of the variation in GY. The models and parameters used indicated that the Los_Hornos genotype (792.31 kg·ha−1) presented a better stability and GY classification, higher than the general average (569.9 kg·ha−1) and the improved control Calentana (591.85 kg·ha−1). Therefore, this genotype can have a significant impact on the genetic gain of GY for future sesame improvement programs.","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100667","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}

引用次数: 0

On-farm assessment and demonstration of best management practices for direct-seeded rice in Timor-Leste 东帝汶直接播种水稻最佳管理实践的农场评估和示范

IF 2 3区农林科学

Agronomy Journal Pub Date : 2025-05-19 DOI: 10.1002/agj2.70083

Yusaku Goto, Taisuke Egusa, Yuji Yamasaki, Virender Kumar, Takeshi Sato, Yoichiro Kato

{"title":"On-farm assessment and demonstration of best management practices for direct-seeded rice in Timor-Leste","authors":"Yusaku Goto, Taisuke Egusa, Yuji Yamasaki, Virender Kumar, Takeshi Sato, Yoichiro Kato","doi":"10.1002/agj2.70083","DOIUrl":"https://doi.org/10.1002/agj2.70083","url":null,"abstract":"Direct-seeded rice (Oryza sativa) cultivation (DSR) is gradually replacing transplanted rice cultivation (TPR) across tropical Asia owing to labor shortages. However, the yields in DSR are lower than those in TPR under current farmer practices (FPs). It would be useful to introduce best management practices (BMPs), holistic technology packages prepared by researchers and extension staff, to improve DSR yield. We aimed at quantifying the effect of BMPs application on the on-farm yield, input factors (labor requirements and production costs), and cost–benefit performance of DSR and comparing it with the results of TPR. On-farm trials were conducted for 2 years in Timor-Leste (East Timor) and categorized farmers into a 2 × 2 experimental design: farmers who used FPs in DSR, BMPs in DSR, FPs in TPR, or BMPs in TPR. There were no significant yield differences between DSR and TPR under BMPs (3.5 vs. 3.6 t ha−1), but DSR produced a 20% lower yield than TPR under FPs (2.4 vs. 3.0 t ha−1). Yield increases due to BMPs were greater in DSR (+46%) than in TPR (+20%). The benefit–cost ratio of BMPs in DSR was 21% higher than that of BMPs in TPR (1.48 vs. 1.22). DSR farmers can achieve yields similar to those of TPR farmers by applying BMPs, with less labor and lower production costs, even where subsistence farming prevails. The effects of BMPs on DSR and TPR in this study suggest that the BMPs could improve land and labor productivities through DSR in tropical agricultural development programs.","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agj2.70083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085429","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}

引用次数: 0

Phosphorus placement and microbial inoculation effects on potato yield and phosphorus recovery 施磷和微生物接种对马铃薯产量和磷恢复的影响

IF 2 3区农林科学

Agronomy Journal Pub Date : 2025-05-14 DOI: 10.1002/agj2.70073

Weige Huo, James E. Crants, Yuxin Miao, Carl J. Rosen

{"title":"Phosphorus placement and microbial inoculation effects on potato yield and phosphorus recovery","authors":"Weige Huo, James E. Crants, Yuxin Miao, Carl J. Rosen","doi":"10.1002/agj2.70073","DOIUrl":"https://doi.org/10.1002/agj2.70073","url":null,"abstract":"Potatoes (Solanum tuberosum L.) have been shown in previous studies to respond to P fertilizer on high-P testing soils. Response to P under these conditions may be due in part to their shallow root systems and poor associations with mycorrhizal fungi due to the use of fumigation to control soilborne diseases. This study evaluated the effects of P placement and microbial inoculation on tuber yield and P recovery in high-P soil. A field study with a split–split-plot randomized complete block design was conducted over 2 years, with whole plots defined by fumigation treatment (no fumigant or metam sodium) and subplots defined by cultivar (Ivory Russet or Russet Burbank). Each subplot was divided into seven sub-subplots by P treatment. Four treatments were used to evaluate banded versus broadcast P placement at 37 and 73 kg P ha−1 without inoculant. Four treatments were used to evaluate the effect of broadcast P at 0 and 73 kg P ha−1 with or without an inoculant. At equivalent P rates, banded P placement produced 4.8% greater tuber yield, 4.8% greater P uptake, and 5.0% greater P recovery efficiency (PRE) than broadcast placement. However, microbial inoculation had no effect on tuber yield, P uptake, or PRE with or without fumigation. High soil P or control of foliar fungi may have inhibited mycorrhizae. Overall, at equivalent P rates, banded P placement increased tuber yield even under high soil P conditions, but inoculation with arbuscular mycorrhizal fungi and other beneficial microbes had no effect.","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agj2.70073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950192","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}

引用次数: 0

Genotype-by-environment interaction on pod-shattering resistance and yield of mungbean 绿豆抗落荚性与产量的基因型-环境互作

IF 2 3区农林科学

Agronomy Journal Pub Date : 2025-05-14 DOI: 10.1002/agj2.70067

Ratri Tri Hapsari, Surjono Hadi Sutjahjo, Desta Wirnas, Willy Bayuardi Suwarno, Yudiwanti Wahyu

{"title":"Genotype-by-environment interaction on pod-shattering resistance and yield of mungbean","authors":"Ratri Tri Hapsari, Surjono Hadi Sutjahjo, Desta Wirnas, Willy Bayuardi Suwarno, Yudiwanti Wahyu","doi":"10.1002/agj2.70067","DOIUrl":"https://doi.org/10.1002/agj2.70067","url":null,"abstract":"Mungbean [Vigna radiata (L.) R. Wilczek var. radiata] is a potential crop for an inexpensive supplier of plant-based protein for promoting food security. One of the causes of low mungbean production is pod shattering during pod maturing or harvesting. Currently, there is limited knowledge regarding the effects of genotype and genotype × environment (G × E) interaction on pod-shattering resistance in mungbean. This study aimed to analyze the effect of G × E and to identify mungbean genotypes that had stability on pod-shattering resistance and high yield. The study was conducted across two locations (Malang and Probolinggo, East Java, Indonesia) and two seasons (Dry Season 1, February to May 2023, and Dry Season 2, June to August 2023). Forty mungbean genotypes were evaluated for morpho-agronomic traits (three qualitative and 16 quantitative traits) and pod-shattering resistance (represented by the proportion of non-shattering pods). There was a significant interaction effect of G × E for non-shattering pod and yield. Genotypes G8 (MLGV 0377), G10 (MLGV 0371), G21 (MLGV 1052), G31 (Murai), and G36 (Vima 3) were identified as potential due to their stable resistance to pod shattering as well as high and stable yields based on several stability parameters, including linear regression coefficient (bi) = 1. These five genotypes belong to the resistant category, exhibiting a non-shattering pod percentage of 91%–99%. No correlation was observed between qualitative traits and pod shattering, while for quantitative traits, a significant positive correlation (r = 0.35, p < 0.05) was found between pod width and non-shattering pod. Our findings indicate the possibility of breeding stable pod-shattering-resistant genotypes with high yield, which would pave the way to advancing near-future mungbean breeding programs.","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949743","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}

引用次数: 0

Cover cropping increases the abundance of mycorrhizal and endophytic fungi structures associated with ecosystem functioning 覆盖种植增加了与生态系统功能相关的菌根真菌和内生真菌结构的丰度

IF 2 3区农林科学

Agronomy Journal Pub Date : 2025-05-14 DOI: 10.1002/agj2.70075

P. L. Bromley, N. L. J. Rintoul-Hynes

{"title":"Cover cropping increases the abundance of mycorrhizal and endophytic fungi structures associated with ecosystem functioning","authors":"P. L. Bromley, N. L. J. Rintoul-Hynes","doi":"10.1002/agj2.70075","DOIUrl":"https://doi.org/10.1002/agj2.70075","url":null,"abstract":"Soil is one of the most complex microbial environments on earth, providing many ecosystem services to benefit humankind. Many of the services associated with soil microorganisms are particularly important to the agricultural industry as these improve crop stress tolerance, nutrition, and yield. However, conventional agricultural practices that use excessive chemical inputs, tillage, and monocropping have diminished the soil biosphere and lessened the ecosystem services that microbes are able to provide. Cover cropping is one of the key principles underpinning conservation agriculture systems. Despite it being relatively well-known that cover cropping has a beneficial impact on the overall abundance and community structure of soil microbes, the effects on specific microbial structures and their functions are vastly under-researched. In fact, some fungal structures investigated in this study have never been examined under cover cropping systems before. Therefore, soil samples were taken from five cover cropped and five conventionally managed fields growing spring bean (Phaseolus vulgaris) in Kent, UK, and the abundance of seven key mycorrhizal and endophytic fungal structures were identified. Cover cropping was associated with a significantly higher abundance of hyphae, arbuscules, vesicles, moniliform hyphae, and microsclerotia, but not spores or chlamydospores. Since these structures are known to be associated with nutrient exchange, overwintering and long-term survival, energy storage, and branching and inoculation, cover cropping practices are likely to improve the functioning of mycorrhizal and endophytic fungi.","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agj2.70075","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950194","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}

引用次数: 0

Is early always better? Assessing soybean planting date in Minnesota 越早越好吗？评估明尼苏达州大豆播种日期

IF 2 3区农林科学

Agronomy Journal Pub Date : 2025-05-14 DOI: 10.1002/agj2.70076

Bruce Potter, Anibal Cerrudo, Seth L. Naeve

{"title":"Is early always better? Assessing soybean planting date in Minnesota","authors":"Bruce Potter, Anibal Cerrudo, Seth L. Naeve","doi":"10.1002/agj2.70076","DOIUrl":"https://doi.org/10.1002/agj2.70076","url":null,"abstract":"Planting date significantly impacts soybean (Glycine max L.) production in the Upper Midwest. Farmers often plant as early as possible, assuming higher risks and costs, to maximize yield potential. However, in drought-prone, low-productivity areas, the benefits of early planting, which are attributed to radiation utilization, could be offset by water stress. This study evaluated the effects of planting date and cultivar maturity on yield across environments with varying attainable productivity levels. Field experiments were conducted over 25 consecutive seasons (1999–2023) in Lamberton, Southwest MN, encompassing a broad range of productivity. An attainable productivity index that was strongly linked to precipitation availability was used to classify environments. In high-attainable productivity environments, early planting with full-season cultivars resulted in significant yield advantages, with delays reducing yield by up to 0.3% per day. Conversely, in low-productivity environments, planting delays until late May did not reduce yield and, in extreme cases, yielded positive responses. Across all the environments, planting beyond the end of May consistently led to steep yield declines above 1% per day, regardless of resource availability or maturity. These findings highlighted that early planting with full-season cultivars was optimal for high-productivity environments but provided no clear yield advantage in drought-prone, low-productivity environments, where the risks and costs may not be justified. The results could offer guidance for tailoring planting date within heterogeneous fields.","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agj2.70076","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950193","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}

引用次数: 0

Reduced-lignin alfalfa production in the water-limited environments of the US Central Great Plains 美国中部大平原缺水环境下木质素减少的紫花苜蓿产量

IF 2 3区农林科学

Agronomy Journal Pub Date : 2025-05-12 DOI: 10.1002/agj2.70064

Alayna Gerhardt, Romulo Lollato, Andrew Foote, Carla Goad, Alexandre Caldeira Rocateli

{"title":"Reduced-lignin alfalfa production in the water-limited environments of the US Central Great Plains","authors":"Alayna Gerhardt, Romulo Lollato, Andrew Foote, Carla Goad, Alexandre Caldeira Rocateli","doi":"10.1002/agj2.70064","DOIUrl":"https://doi.org/10.1002/agj2.70064","url":null,"abstract":"Previous studies indicate reduced-lignin (RL) alfalfa (Medicago sativa L.) cultivars as a more digestible livestock feed option with minimal reductions in biomass than conventional alfalfa cultivars at the same growth stage, allowing for harvest flexibility. However, these findings are derived from environments with adequate moisture. Thus, RL performance in water-limited environments, such as the US's Central Great Plains (CGP), is unknown. Our objective was to compare the 54HVX41 cultivar's (RL) season-long biomass and nutritive value against three reference alfalfa cultivars (54VR10, DKA44-16RR, and WL 356 HQ.RR) at different harvest intervals (i.e., 28, 35, and 48 days) at three locations for two seasons in the CGP. In locations that received adequate annual rainfall (near Lahoma, OK), RL alfalfa had similar or lower season-long biomass (p = 0.02), acid detergent lignin (ADL) concentration (p > 0.01), greater neutral detergent fiber digestibility 30 h (p < 0.01), and in vitro dry matter digestibility 48 h (IVTDMD 48 h) than the reference cultivars (p > 0.01). Nevertheless, in water-limited environments (near Hutchinson, KS, and Stillwater, OK), the RL had similar season-long biomass, ADL, and IVTDMD 48 h concentrations to the reference cultivars. Further research is needed to validate our interpretation, as only one RL alfalfa cultivar was evaluated in water-deficit environments.","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/agj2.70064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938928","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}

引用次数: 0

Productivity and economic implications of alfalfa–grass mixtures under variable irrigation 不同灌溉条件下紫花苜蓿-草混合作物的生产力和经济意义

IF 2 3区农林科学

Agronomy Journal Pub Date : 2025-05-12 DOI: 10.1002/agj2.70070

Mohammed Munkaila, M. Anowarul Islam

{"title":"Productivity and economic implications of alfalfa–grass mixtures under variable irrigation","authors":"Mohammed Munkaila, M. Anowarul Islam","doi":"10.1002/agj2.70070","DOIUrl":"https://doi.org/10.1002/agj2.70070","url":null,"abstract":"A field study was established at the University of Wyoming James C. Hageman Sustainable Agriculture Research and Extension Center in 2020 with the following objectives: (1) Assess the performance of alfalfa–grass mixtures under reduced irrigation. (2) Identify the best grass species and optimum seeding ratio of alfalfa–grass mixtures for improved productivity and nutritive value under full and deficit irrigations; (3) Compare the net economic return from different seeding ratios of alfalfa–grass mixtures under full and deficit irrigations. Treatments included monocrop alfalfa, 75–25 ratio, 50–50 mixed row planting, and 50–50 alternate row planting of alfalfa with each of three perennial cool-season grasses (orchardgrass, tall fescue, and meadow bromegrass) under full and deficit irrigation. Under full irrigation, 75–25 mixture with tall fescue produced the highest 2-year total forage dry matter, while alternate row planting of alfalfa and orchardgrass produced the highest under deficit irrigation. Deficit irrigation affected forage dry matter yield negatively. Economic analysis revealed that a 75–25 mixture of alfalfa and tall fescue under full irrigation produced the highest net present value (NPV). Although deficit irrigation reduced costs, that did not result in higher NPV than full irrigation. However, alternate row planting with orchardgrass under deficit irrigation produced an NPVsimilar to the treatments under full irrigation.","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938929","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}

引用次数: 0