Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title]最新文献

Mitigation of Climate Change by Nitrogen Managements in Agriculture 通过农业氮素管理减缓气候变化

Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title] Pub Date : 2021-09-11 DOI: 10.5772/intechopen.99972

K. Inubushi, M. Yashima

引用次数: 2

Influence of Heavy Metals on the Nitrogen Metabolism in Plants 重金属对植物氮代谢的影响

Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title] Pub Date : 2021-08-04 DOI: 10.5772/intechopen.97759

V. Nascimento, G. Nogueira, G. Monteiro, W. V. A. Júnior, J. M. N. Freitas, C. F. Neto

{"title":"Influence of Heavy Metals on the Nitrogen Metabolism in Plants","authors":"V. Nascimento, G. Nogueira, G. Monteiro, W. V. A. Júnior, J. M. N. Freitas, C. F. Neto","doi":"10.5772/intechopen.97759","DOIUrl":"https://doi.org/10.5772/intechopen.97759","url":null,"abstract":"As an essential element, Nitrogen is needed in large quantities for being an important component of cellular constituents and for plant metabolism, and its deficiency is one of the most common limitations for plant development. The study of the toxic effects of metal in plants involves a complex system of reactions that can be better determined once having a large attention of the different backgrounds of occurence to determinate how to proceed. The objective of this review is to add scientific knowledge, addressing the main functionalities and characteristics of this relation heavy metals – nitrogen metabolism in plant. Increasing industrialization and urbanization had anthropogenic contribution of heavy metals in biosphere and had largest availability in ecosystems. This toxicity in plants varies with plant species, specific metal, concentration, soil composition, as many heavy metals are considered to be essential for plant growth. Were provided data and reviews regarding the effect of heavy metals on nitrogen metabolism of plants and the responses of plants and the cross-talk of heavy metals and various stressors factors. Is clear to understand the relation between metals amount and the benefit or harm caused on plants, determining then, which mechanism should be activated to protect your physiological system.","PeriodicalId":347465,"journal":{"name":"Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title]","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127889069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Mycorrhizal Fungi and Sustainable Agriculture 菌根真菌与可持续农业

Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title] Pub Date : 2021-08-02 DOI: 10.5772/intechopen.99262

Soibam Helena Devi, I. Bhupenchandra, S. Sinyorita, S. Chongtham, E. L. Devi

{"title":"Mycorrhizal Fungi and Sustainable Agriculture","authors":"Soibam Helena Devi, I. Bhupenchandra, S. Sinyorita, S. Chongtham, E. L. Devi","doi":"10.5772/intechopen.99262","DOIUrl":"https://doi.org/10.5772/intechopen.99262","url":null,"abstract":"The 20thcentury witnessed an augmentation in agricultural production, mainly through the progress and use of pesticides, fertilizers containing nitrogen and phosphorus, and developments in plant breeding and genetic skills. In the naturally existing ecology, rhizospheric soils have innumerable biological living beings to favor the plant development, nutrient assimilation, stress tolerance, disease deterrence, carbon seizing and others. These organisms include mycorrhizal fungi, bacteria, actinomycetes, etc. which solubilize nutrients and assist the plants in up taking by roots. Amongst them, arbuscular mycorrhizal (AM) fungi have key importance in natural ecosystem, but high rate of chemical fertilizer in agricultural fields is diminishing its importance. The majority of the terrestrial plants form association with Vesicular Arbuscular Mycorrhiza (VAM) or Arbuscular Mycorrhizal fungi (AMF). This symbiosis confers benefits directly to the host plant’s growth and development through the acquisition of Phosphorus (P) and other mineral nutrients from the soil by the AMF. They may also enhance the protection of plants against pathogens and increases the plant diversity. This is achieved by the growth of AMF mycelium within the host root (intra radical) and out into the soil (extra radical) beyond. Proper management of Arbuscular Mycorrhizal fungi has the potential to improve the profitability and sustainability of agricultural systems. AM fungi are especially important for sustainable farming systems because AM fungi are efficient when nutrient availability is low and when nutrients are bound to organic matter and soil particles.","PeriodicalId":347465,"journal":{"name":"Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title]","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129043879","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

Conservation of Edible Ectomycorrhizal Mushrooms: Understanding of the ECM Fungi Mediated Carbon and Nitrogen Movement within Forest Ecosystems 食用外生菌根蘑菇的保存:ECM真菌在森林生态系统中介导碳氮运动的认识

Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title] Pub Date : 2021-01-29 DOI: 10.5772/INTECHOPEN.95399

Lu-Min Vaario, N. Matsushita

引用次数: 3

Cover Crop Residue Management for Effective Use of Mineralized Nitrogen in Greenhouse Tomato Production 覆盖作物残茬管理促进温室番茄矿化氮有效利用

Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title] Pub Date : 2021-01-04 DOI: 10.5772/INTECHOPEN.95359

R. A. Muchanga, H. Araki

{"title":"Cover Crop Residue Management for Effective Use of Mineralized Nitrogen in Greenhouse Tomato Production","authors":"R. A. Muchanga, H. Araki","doi":"10.5772/INTECHOPEN.95359","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.95359","url":null,"abstract":"Adequate residue management may enhance the benefits of cover crops on greenhouse tomato (Solanum lycopersicum L.) productivity, soil N pool, N cycling, and environmental quality. Regardless of management, cover crops may maintain or increase soil N storage at 10 cm depth compared with bare fallow. Cover crops may also enhance microbial biomass N, as a result, soil N availability may increase with cover crops, except rye (Secale cereale L.), more so with hairy vetch (Vicia villosa R.; HV) incorporation than HV mulch and the biculture of HV and rye. Residual inorganic N at surface soil may increase with cover crops, more so with HV and rye monocultures than the biculture. Tomato yield may increase more with the biculture than either HV incorporation or HV mulch because of an efficient residue-N use by tomatoes. The biculture may change the N release pattern from both cover crops: rye of the biculture may release more N than the monoculture, while HV may release a similar or more N in the late than in the early period of tomato growth. With adequate seeding HV/rye ratio (2/1), biculture may maintain or increase soil N storage, increase N cycling and tomato yield, and improve environmental quality.","PeriodicalId":347465,"journal":{"name":"Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title]","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117270270","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

Modeling of Nitrogen Use Efficiency in Lettuce Culture (Lactuca sativa): Isotopic Nitrogen (15 N) and AquaCrop 莴苣氮素利用效率的模拟:同位素氮(15 N)和AquaCrop

Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title] Pub Date : 2020-09-29 DOI: 10.5772/INTECHOPEN.93741

M. Amirouche, D. Smadhi, L. Zella

{"title":"Modeling of Nitrogen Use Efficiency in Lettuce Culture (Lactuca sativa): Isotopic Nitrogen (15 N) and AquaCrop","authors":"M. Amirouche, D. Smadhi, L. Zella","doi":"10.5772/INTECHOPEN.93741","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.93741","url":null,"abstract":"The present study is highlighted through an experiment carried out over two consecutive years 2014–2016, in the sub humid region of Algiers. The methodology adopted concerns the variation of optimal nitrogen doses and their effects on the evolution of lettuce (Lactuca sativa L.) cultivation, whose socio-economic impact is proven, using isotopic nitrogen (15 N) and the AquaCrop model. The experimental design adopted is of the complete randomized block type, with four (04) levels: 0 (control), 60, 120, and 180 kg N/ha with four (04) replicates. The results obtained showed that the 120 kg N/ha dose is the efficient dose to cover the nitrogen requirements of lettuce with an efficiency of 74.48%. The accuracy of the model in calibration was tested using the following statistical indicators: R2, nRMSE, and d, which are, respectively, 0.64 < R < 0.81; 18 < nRMSE <46.3 and 0.78 < d < 0.94 for canopy coverage and 0.92 < R < 0.98; 21.6 < nRMSE <34.5 and 0.91 < d < 0.96 for dry biomass. The AquaCrop model could be recommended as a practical tool to better manage agricultural practices including fertilization.","PeriodicalId":347465,"journal":{"name":"Nitrogen in Agriculture - Physiological, Agricultural and Ecological Aspects [Working Title]","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122246422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1