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Quantifying India’s nitrogen, phosphorus, and potassium generation potential from agricultural and animal waste for sustainable nutrient management 量化印度从农业和动物废物中产生氮、磷和钾的潜力,以实现可持续的营养管理
Frontiers in Agronomy Pub Date : 2025-11-12 DOI: 10.3389/fagro.2025.1689121
Vijayakumar Shanmugam, Virender Kumar, R. M. Sundaram, R. Mahender Kumar, Panneerselvam Peramaiyan, Varunseelan Murugaiyan, A. K. Nayak
{"title":"Quantifying India’s nitrogen, phosphorus, and potassium generation potential from agricultural and animal waste for sustainable nutrient management","authors":"Vijayakumar Shanmugam, Virender Kumar, R. M. Sundaram, R. Mahender Kumar, Panneerselvam Peramaiyan, Varunseelan Murugaiyan, A. K. Nayak","doi":"10.3389/fagro.2025.1689121","DOIUrl":"https://doi.org/10.3389/fagro.2025.1689121","url":null,"abstract":"India, the second-largest food producer and world’s largest livestock rearer, lacks comprehensive quantitative data on domestic organic waste generation, which hinders sustainable nutrient management and increases reliance on costly inorganic fertilizers. This study addresses this gap by quantifying the national and state-level potential of key organic wastes to bridge the country’s fertilizer demand. We quantify the annual generation of Nitrogen (N), Phosphorus (P), and Potassium (K) from various organic wastes and utilize these data to evaluate the potential for organic farming across Indian states by analyzing the nutrient balance between organic supply potential and inorganic fertilizer demand. Annually, India generates 667.7 million tons (MT) of animal waste, contributing 4.49 MT of N, 1.77 MT of P, and 3.31 MT of K. Cattle and buffalo account for over 90% of this generation. Additionally, 762.8 MT of crop residue is generated, primarily from rice, wheat, and sugarcane, yielding 4.55 MT of N, 0.53 MT of P, and 6.61 MT of K. Oil meal (23.3 MT) contributes an additional 1.51 MT of N, 0.25 MT of P, and 0.24 MT of K annually. Collectively, organic waste generates a massive resource of 10.6 MT of N, 2.6 MT of P, and 10.2 MT of K per year. Uttar Pradesh leads in organic nutrient generation, contributing 14.6% of N, 12.3% of P, and 18% of K, followed by Madhya Pradesh. On average, 10.1 tons of organic waste is available per-hectare in India, which could provide 75.6 kg of N, 18.0 kg of P, and 71.7 kg of K annually. However, significant region-specific nutrient imbalances persist. Among 36 states and union territories, 17 and 20 show negative N and P balances, respectively, while all states except Kerala have a positive K balance. The quantified state-level nutrient balance provides an essential roadmap for region-specific agricultural planning. Positive nutrient balance states should prioritize a rapid transition toward organic farming policies, while negative balanced states require strategic integrated nutrient management policies.","PeriodicalId":34038,"journal":{"name":"Frontiers in Agronomy","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://public-pages-files-2025.frontiersin.org/journals/agronomy/articles/10.3389/fagro.2025.1689121/pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147906161","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: 1
No-till, crop residue management and winter wheat-based crop rotation strategies under rainfed environment 旱作环境下免耕、秸秆管理与冬小麦轮作策略
Frontiers in Agronomy Pub Date : 2024-10-14 DOI: 10.3389/fagro.2024.1453976
Aziz Nurbekov, M.A. KOSIMOV, Sokhib Islamov, Botir Khaitov, Dilrabo Qodirova, Zulfiya Yuldasheva, Jonibek Khudayqulov, Khafizakhon Ergasheva, Ruhangiz Nurbekova
{"title":"No-till, crop residue management and winter wheat-based crop rotation strategies under rainfed environment","authors":"Aziz Nurbekov, M.A. KOSIMOV, Sokhib Islamov, Botir Khaitov, Dilrabo Qodirova, Zulfiya Yuldasheva, Jonibek Khudayqulov, Khafizakhon Ergasheva, Ruhangiz Nurbekova","doi":"10.3389/fagro.2024.1453976","DOIUrl":"https://doi.org/10.3389/fagro.2024.1453976","url":null,"abstract":"Rainfed agriculture is primarily limited by unstable low precipitation, poor soil fertility and monocropping, which are the main factors leading to decreased crop production. This long-term research was conducted under a rainfed agroecosystem from 2019 to 2023 on the sierozem soil of the Karshi steppe, Uzbekistan. Along with winter wheat (WW) which was the main crop covering 50% of each proposed cropping pattern, chickpea (CH), safflower (SA), flax (FL), barley (BA) and canola (CA) were evaluated to find the most suitable rotation systems under no-till (NT) i.e. NT1: WW–CH–WW–FL, NT2: CH–WW–SA–WW, NT3: WW–SA–WW–BA and NT4: SA–WW–CA–WW compared against continuous WW produced with conventional tillage (CT). Results showed that the integrated effect of NT x crop diversification x residue retention positively affected crop productivity; however, their impact were significantly higher under the NT2 treatment, but not with continuous WW under CT. The highest grain yield of WW in the 2020-2021 growing season was recorded under NT2 and NT4 treatments with values of 1.47 and 1.30 Mg ha -1 , while the lowest index (1.02 Mg ha -1 ) was found at the CT treatment. The grain yield in the NT treatments increased with the improvement of soil chemical and physical parameters, i.e. NPK and humus content. When comparing NT2 to CT treatment at the project end, the total N, P, and K values at the 0–20 cm soil profile were 27.9%, 13.9%, and 33.9% higher, respectively. This study concluded that implementation of NT along with strategic selection of legumes incorporated into the cropping system and residue management can be prioritized as rehabilitation measures in rainfed croplands.","PeriodicalId":34038,"journal":{"name":"Frontiers in Agronomy","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.frontiersin.org/journals/agronomy/articles/10.3389/fagro.2024.1453976/pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147878376","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: 12
Toxicological risk assessment of mechanical-chemical vs. chemical weed control techniques in sugar beet in Germany using SYNOPS-GIS 利用 SYNOPS-GIS 对德国甜菜中机械-化学除草技术与化学除草技术进行毒理学风险评估
Frontiers in Agronomy Pub Date : 2024-01-08 DOI: 10.3389/fagro.2023.1274703
O. Fishkis, Joern Strassemeyer, Franz Pöllinger, Christel Anne Roß, Heinz-Josef Koch
{"title":"Toxicological risk assessment of mechanical-chemical vs. chemical weed control techniques in sugar beet in Germany using SYNOPS-GIS","authors":"O. Fishkis, Joern Strassemeyer, Franz Pöllinger, Christel Anne Roß, Heinz-Josef Koch","doi":"10.3389/fagro.2023.1274703","DOIUrl":"https://doi.org/10.3389/fagro.2023.1274703","url":null,"abstract":"The EU Farm to Fork strategy aims to reduce the use of pesticides and associated toxicological risks. However, the risks coming along with currently available alternatives to chemical weed control in sugar beet have not yet been evaluated. Therefore, the aim of this study was to determine the toxicological risks to arthropods, aquatic and soil organisms caused by mechanical-chemical in comparison to conventional chemical weed control in sugar beet.The risk assessment was performed using SYNOPS-GIS, a process-based model calculating the environmental fate of pesticides and the exposure risk to arthropods, aquatic and soil organisms.Overall, broadcast spraying of conventional herbicides caused low to very low toxicological risks in most regions and years in Germany. Nevertheless, there were considerably higher risks to aquatic and soil organisms from conventional broadcast spraying in northern Germany than in other regions of Germany. With conventional herbicides, mechanical-chemical weed control reduced toxicological risks proportionally to the reduction in application amount. In contrast, band spraying of the new herbicide with the active ingredients foramsulfuron and thiencarbazone-methyl caused an aquatic risk as broadcast spraying with conventional herbicides, although the application rate was 120 times lower. This was due to high toxicity of both active ingredients of the new herbicide to water plants.Not only the application amount of herbicides but also environmental toxicity should be included in assessment approaches such as the EU “Harmonized Risk Indicator”.","PeriodicalId":34038,"journal":{"name":"Frontiers in Agronomy","volume":"55 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139447502","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
Amplicon sequencing identified a putative pathogen, Macrophomina phaseolina, causing wilt in African eggplant (Solanum aethiopicum) grown in Tanzania and Uganda 扩增子测序确定了一种假定的病原体--相叶巨霉菌,该病原体会导致坦桑尼亚和乌干达种植的非洲茄子(Solanum aethiopicum)枯萎病
Frontiers in Agronomy Pub Date : 2024-01-03 DOI: 10.3389/fagro.2023.1300324
Xiangming Xu, R. Minja, E. Kizito, F. Dinssa, G. Deakin, Pamela Nahamya Kabod, Asheri Kalala, Eliciana Kweka, O. Mbwambo, Deusdedith Mbanzibwa, Hamza Msangi, Mildred Julian Nakanwagi, T. Passey, Stuart Sentance, G. Sseremba, E. Stavridou, Gerard J. Bishop
{"title":"Amplicon sequencing identified a putative pathogen, Macrophomina phaseolina, causing wilt in African eggplant (Solanum aethiopicum) grown in Tanzania and Uganda","authors":"Xiangming Xu, R. Minja, E. Kizito, F. Dinssa, G. Deakin, Pamela Nahamya Kabod, Asheri Kalala, Eliciana Kweka, O. Mbwambo, Deusdedith Mbanzibwa, Hamza Msangi, Mildred Julian Nakanwagi, T. Passey, Stuart Sentance, G. Sseremba, E. Stavridou, Gerard J. Bishop","doi":"10.3389/fagro.2023.1300324","DOIUrl":"https://doi.org/10.3389/fagro.2023.1300324","url":null,"abstract":"African eggplant (Solanum aethiopicum L.) is one of the most common traditional vegetables in Tanzania and Uganda, but its productivity is severely affected by wilt diseases caused by a number of pathogens. Plant stem and root samples were collected in several fields from many neighboring diseased and healthy plants of the Gilo group in Tanzania and from the Shum group in Uganda to identify putative pathogens causing wilt on African eggplants. Through amplicon sequencing of sampled diseased and healthy tissues, we identified putative causal pathogens for the wilt symptoms. Wilting of S. aethiopicum in Uganda is most likely caused by the bacterial pathogen Ralstonia solanacearum whereas, in Tanzania, wilt is most likely caused by the fungal pathogen Macrophomina phaseolina, infecting roots. Infection of stems by Fusarium solani may also contribute to the wilt symptoms in Tanzania. Further artificial inoculation under controlled conditions confirmed that M. phaseolina can cause typical wilting symptoms on S. aethiopcium genotypes. The discovery of different putative causal agents of wilt in the crop demonstrates the need for site specific etiological analysis of wilt before developing and implementing effective control methods. Further research is needed to confirm the results and develop appropriate management measures against specific wilt pathogens.","PeriodicalId":34038,"journal":{"name":"Frontiers in Agronomy","volume":"9 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139451177","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
Effects of transplanting and AMF inoculation on the fruit yield of African eggplants (Solanum aethiopicum and Solanum anguivi) in Tanzania 坦桑尼亚非洲茄子(Solanum aethiopicum 和 Solanum anguivi)移栽和接种 AMF 对果实产量的影响
Frontiers in Agronomy Pub Date : 2023-12-18 DOI: 10.3389/fagro.2023.1300553
Xiangming Xu, F. Dinssa, R. Minja, V. Mwaijande, O. Mbwambo, Zainab Mziray, E. Stavridou, Gerard J. Bishop
{"title":"Effects of transplanting and AMF inoculation on the fruit yield of African eggplants (Solanum aethiopicum and Solanum anguivi) in Tanzania","authors":"Xiangming Xu, F. Dinssa, R. Minja, V. Mwaijande, O. Mbwambo, Zainab Mziray, E. Stavridou, Gerard J. Bishop","doi":"10.3389/fagro.2023.1300553","DOIUrl":"https://doi.org/10.3389/fagro.2023.1300553","url":null,"abstract":"The African eggplant (Solanum aethiopicum L., Gilo group) is one of the most common traditional vegetables in Tanzania. The yield of the African eggplant in Tanzania is far lower than the potential yield expected, which is due primarily to biotic and abiotic stresses. We conducted experiments at two locations in Tanzania to study whether or not plant growth and the fruit yield of the Gilo group of African eggplant can be significantly improved through transplanting coupled with the inoculation of arbuscular mycorrhizal fungi (AMF) at sowing. Many plants, particularly for the directly sown treatment, died well before harvesting, and, in addition, many surviving plants showed symptoms of wilting. The transplanting of tray seedlings and using AMF inocula at sowing led to an overall significant increase in fruit yield by 30%–40% and 20%–25%, respectively. Increased fruit yield per experimental plot resulted primarily from a greater number of plants that survived and reached the harvesting stage. The exact effect of planting method (i.e., transplanting or direct sowing) and AMF inoculation, however, varied greatly with plant accessions. Further research is needed to understand the cause(s) for plant mortality in order to develop appropriate plant management practices.","PeriodicalId":34038,"journal":{"name":"Frontiers in Agronomy","volume":"125 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175446","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
Using integrated weed management systems to manage herbicide-resistant weeds in the Canadian Prairies 利用综合杂草管理系统管理加拿大草原上的抗除草剂杂草
Frontiers in Agronomy Pub Date : 2023-12-15 DOI: 10.3389/fagro.2023.1304741
B. Tidemann, K. Harker, Steve Shirtliffe, Christian Willenborg, Eric Johnson, Robert Gulden, N. Lupwayi, T. Turkington, Emma C. Stephens, R. Blackshaw, Charles M. Geddes, Hiroshi Kubota, G. Semach, Alick Mulenga, Cindy Gampe, Larry Michielsen, Patty Reid, Elizabeth Sroka, Jennifer Zuidhof
{"title":"Using integrated weed management systems to manage herbicide-resistant weeds in the Canadian Prairies","authors":"B. Tidemann, K. Harker, Steve Shirtliffe, Christian Willenborg, Eric Johnson, Robert Gulden, N. Lupwayi, T. Turkington, Emma C. Stephens, R. Blackshaw, Charles M. Geddes, Hiroshi Kubota, G. Semach, Alick Mulenga, Cindy Gampe, Larry Michielsen, Patty Reid, Elizabeth Sroka, Jennifer Zuidhof","doi":"10.3389/fagro.2023.1304741","DOIUrl":"https://doi.org/10.3389/fagro.2023.1304741","url":null,"abstract":"Although herbicides have been a dominant and effective weed control strategy for decades in Western Canada, herbicide resistance and the lack of new modes of action have resulted in weed management challenges. Integrated weed management strategies have been shown to be successful in controlling certain weed species that are problematic in cropping systems. The objective of this study was to investigate integrated weed management strategies that have been successful on individual species to determine their applicability to a multiple weed species that may coexist in a field. In addition, harvest weed seed control was incorporated into these integrated weed management strategies to determine its impact in western Canadian cropping systems. A 5-year rotational study was conducted from 2016 to 2020 at Beaverlodge, Lacombe, and Lethbridge, AB; Scott and Saskatoon, SK; and Carman, MB, that incorporated integrated weed management strategies such as rotational crop diversity (including winter annuals and perennials), increased seeding rates, crop silaging, chaff collection, and with or without in-crop herbicides. This research confirmed success in managing some species of weeds such as wild oat when increased seeding rates, 2 years of early cut silage barley, and competitive winter cereals were incorporated into a cropping system, even when no in-crop herbicides were applied. However, some weed growth morphologies (e.g., twining weeds) or life cycles (e.g., facultative winter annuals) were not managed successfully with this combination of strategies. Chaff collection provided incremental weed control benefits but did not serve as a replacement for herbicidal weed control. Weed densities had an apparent impact on the success of these integrated weed management strategies, suggesting that the sooner they are adopted, the more likely they are to be successful at maintaining or reducing weed densities. This study not only showed the ability to reduce reliance on herbicides with strategies that can be effective in Western Canada but also highlighted the need for further understanding of different weed species and their responses to integrated weed management strategies, as well as the complexity of managing a weed community with integrated weed management.","PeriodicalId":34038,"journal":{"name":"Frontiers in Agronomy","volume":"49 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138995922","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
Soil legacies in maize-edible legume intercropping alter maize growth and reduce Spodoptera frugiperda larval feeding 玉米-可食用豆科植物间作中的土壤残留物会改变玉米的生长并减少鞘翅目幼虫的食量
Frontiers in Agronomy Pub Date : 2023-12-12 DOI: 10.3389/fagro.2023.1300545
Abdul A. Jalloh, A. Yusuf, F. Khamis, Sevgan Subramanian, D. Mutyambai
{"title":"Soil legacies in maize-edible legume intercropping alter maize growth and reduce Spodoptera frugiperda larval feeding","authors":"Abdul A. Jalloh, A. Yusuf, F. Khamis, Sevgan Subramanian, D. Mutyambai","doi":"10.3389/fagro.2023.1300545","DOIUrl":"https://doi.org/10.3389/fagro.2023.1300545","url":null,"abstract":"Plant-soil feedback can influence aboveground interactions between plants and herbivores by affecting plant chemistry. Such interactions can be utilized in pest management. However, cropping systems such as maize-legume intercropping (MLI) can influence these interactions which is not well understood. In this study, we explored effects of MLI systems on soil physico-chemical properties, maize growth, larval feeding and development of fall armyworm (Spodoptera frugiperda). We used sterile soil and soil conditioned by different MLI and maize-monoculture cropping systems to explore these interactions. Soil samples that included soil conditioned by different MLI and maize-monoculture cropping systems were collected from smallholder farmer fields in eastern Kenya, where different MLI and maize-monoculture cropping systems were being practiced. These soil samples were compared with sterile soils for physico-chemical properties using black oxidation and Walkley methods. Three-weeks-old maize plants grown in the different soil treatments in the greenhouse were used for larval feeding and development assays. Neonate S. frugiperda larvae were allowed to feed on maize leaf discs for 24 hours and another set of plants were inoculated with the neonates for 15 days and the larval survival and development monitored. Soil obtained from different maize-edible legume intercropping systems had a higher pH, electrical conductivity, nitrogen, organic carbon, potassium, phosphorus, calcium, magnesium, exchangeable acidity, copper, clay and silt compared to maize-monoculture and sterile soil. Maize plants grown in MLI soil had better growth parameters compared to those in maize-monoculture and sterile soils. A high correlation was found between pH and plant biomass, while no significant correlation with other physico-chemical properties was noted. There were significant differences in larval feeding by S. frugiperda neonates when exposed to constitutive and induced maize leaf discs with more leaf tissue fed on maize grown in maize-monoculture and sterile soil. When allowed to feed for 15 days, S. frugiperda larval weight and length were significantly lower on maize plants grown in soils conditioned by MLI than those grown in soil conditioned by maize-monoculture and sterile soils. Findings from this study show how conditioning soil by MLI systems improve soil health, maize growth and reduces S. spodoptera larval feeding and development.","PeriodicalId":34038,"journal":{"name":"Frontiers in Agronomy","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139009880","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
Mulching as a weed management tool in container plant production - review 将覆盖物作为容器植物生产中的杂草管理工具 - 综述
Frontiers in Agronomy Pub Date : 2023-12-12 DOI: 10.3389/fagro.2023.1235196
Yuvraj Khamare, S. Marble
{"title":"Mulching as a weed management tool in container plant production - review","authors":"Yuvraj Khamare, S. Marble","doi":"10.3389/fagro.2023.1235196","DOIUrl":"https://doi.org/10.3389/fagro.2023.1235196","url":null,"abstract":"Weed management in container plant production is a serious problem and remains one of the most expensive and time-consuming aspects of the industry. Weeds cause severe reductions in crop growth due to the limited growing environment characteristic of container plant production. The container nursery industry relies heavily on a limited number of preemergence herbicide options. The use of herbicides as the primary means to manage weeds has resulted in some negative consequences such as high chemical costs, leaching, runoff, and concerns with recycling irrigation water. Additionally, nursery growers are shifting their focus toward different nonchemical weed management strategies because many ornamental plants are very sensitive to preemergence herbicides. One such method is using organic mulch to control weeds in container plant production. Mulching is the foundation of a nonchemical weed management protocol and acts as the first line of defense against weeds. Organic mulches used in container plant production include rice hulls, pine bark, wood chips, wood shavings, coconut coir, nut (peanut, pecan) shells, oyster shells, cacao bean hulls, pelletized newspaper, recycled newspaper, pine straw, and other materials; material selection often depends on the availability of the product. The objective of this manuscript is to provide a comprehensive review of existing research on the utilization of various mulch materials as a weed management tool in container plant production. Additionally, it aims to highlight any critical knowledge gaps and provide suggestions for possible future research.","PeriodicalId":34038,"journal":{"name":"Frontiers in Agronomy","volume":"103 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139008112","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
Weed control with saturated steam in organic highbush blueberry 用饱和蒸汽控制有机高丛蓝莓中的杂草
Frontiers in Agronomy Pub Date : 2023-12-11 DOI: 10.3389/fagro.2023.1297979
Marcelo L. Moretti, Rafael M. Pedroso
{"title":"Weed control with saturated steam in organic highbush blueberry","authors":"Marcelo L. Moretti, Rafael M. Pedroso","doi":"10.3389/fagro.2023.1297979","DOIUrl":"https://doi.org/10.3389/fagro.2023.1297979","url":null,"abstract":"Weed management is often a predominant and costly problem in the production of organic blueberries. Geotextile weed fabrics of woven polyethylene are widely used in organic blueberry fields to suppress weeds growing within the rows. Weeds, such as Convolvulus arvensis L., grow at the base of the blueberry plants or through openings and around the edges of the weed fabric, thus requiring hand weeding. This study evaluates the integration of saturated steam (SS), a rotary brush (RB), and organic herbicides for weed control in blueberries. Dose–response studies indicated that SS applied at 121°C and at 7.4 m3 ha−1 of steam (3,655 MJ ha−1) resulted in over 90% control and a reduction in the dry weights of C. arvensis. When treatments were directed to the base of the blueberry plants, SS at 7.4 m3 ha−1 provided 80% control of C. arvensis 28 days after treatment (DAT) and was comparable to hand weeding. Both of these treatments outperformed capric plus caprylic acid (CC) (33.2 kg ai ha−1) or ammonium nonanoate (AN) (24.3 kg ai ha−1) applications, despite C. arversis regrowth being observed. Four repetitive basal applications of SS of up to 29.6 m3 ha−1 over two consecutive years caused minimal and transient damage to new basal shoots of ‘Elliot’ and ‘Duke’ blueberries; basal shoot cross-sectional area compared with the non-treated was unaffected. In contrast, basal application of AN treatments damaged or killed basal shoots. When treatments were applied to the edge of the weed fabric, SS (7.4 m3 ha−1) reduced weed biomass by 42% to 93% at 28 DAT compared with the non-treated. The RB treatment reduced weed biomass from 72% to 99% in all experiments, while CC and AN reduced biomass by 18% to 54%. A partial budget analysis indicated that SS and the RB were 3- and 6.5-fold less expensive than organic herbicides, respectively. Integrating physical (SS) and mechanical (RB) treatments improved weed control. The latter, however, damaged the weed-suppressing fabric where preexisting holes were present, generated dust, and increased the chance of fruit contamination. The SS was safe for the weed-suppressing fabric and the blueberry, but weed regrowth following treatment and copious water requirements hindered its feasibility.","PeriodicalId":34038,"journal":{"name":"Frontiers in Agronomy","volume":"19 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139010393","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
Catch crops in the Argentinean Pampas: a synthesis-analysis on nutrient characteristics and their implications for a sustainable agriculture 阿根廷潘帕斯草原上的捕捞作物:养分特征及其对可持续农业影响的综合分析
Frontiers in Agronomy Pub Date : 2023-12-06 DOI: 10.3389/fagro.2023.1244057
Francisco Cafaro La Menza, W. Carciochi
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