Relevant bibliographies by topics / Nutrient output

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Nutrient output'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Nutrient output"

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Appuhamy, J. A. D. Ranga Niroshan, L. E. Moraes, C. Wagner-Riddle, D. P. Casper, J. France, and E. Kebreab. "Development of mathematical models to predict volume and nutrient composition of fresh manure from lactating Holstein cows." Animal Production Science 54, no. 12 (2014): 1927. http://dx.doi.org/10.1071/an14533.

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Organic compounds in dairy manure undergo a series of reactions producing pollutants such as ammonia and methane. Because various organic compounds have different reaction rates, the emissions could be accurately determined if amounts and concentrations of individual nutrients in manure are known. A set of empirical models were developed for predicting faecal and urinary water, carbon (C), nitrogen (N), acid detergent fibre and neutral detergent fibre output (kg/day) from lactating Holstein cows. Dietary nutrient contents, milk yield and composition, bodyweight, age and days in milk were used
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Guretno, Febri Anggoro, and Robertus Setiawan Aji Nugroho. "IMPLEMENTATION OF FUZZY LOGIC METHODS IN NUTRIENT CONTROL IN HYDROPONIC PLANTS." Proxies : Jurnal Informatika 5, no. 1 (2024): 1–12. http://dx.doi.org/10.24167/proxies.v5i1.12442.

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Hydroponics is a farming technique using water media that contains nutrients that plants need to grow and develop, therefore we must be careful in maintaining the nutrient content that is usually stored in a reservoir. This is the main problem if we cannot maintain optimal nutritional conditions in the reservoir, plants that lack nutrients will affect their growth, otherwise, plants with excess nutrients will quickly rot and turn yellow. Therefore, we need a tool that can control the levels of hydroponic nutrients in the reservoir. We need a tool that can control the hydroponic nutrient reserv
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Rachmansyah, Rachmansyah, Hidayat Suryanto Suwoyo, Muh Chaidir Undu, and Makmur Makmur. "PENDUGAAN NUTRIENT BUDGET TAMBAK INTENSIF UDANG, Litopenaeus vannamei." Jurnal Riset Akuakultur 1, no. 2 (2016): 181. http://dx.doi.org/10.15578/jra.1.2.2006.181-202.

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Penelitian ini bertujuan untuk mendapatkan nutrient budget tambak intensif udang Litopenaeus vannamei sebagai acuan alokasi input produksi pada tingkat kapasitas asimilasi lingkungan perairan. Pendugaan nutrient budget tambak udang intensif menggunakan pendekatan mass balance, dihitung berdasarkan input nutrien nitrogen - N dan fosfor – P yang berasal dari pakan, benih, pupuk, media probiotik, inflow, dan output nutrien yang ada pada produksi udang, outflow, dan endapan lumpur di dasar tambak. Sampel air, tanah, sedimen, plankton diambil sebelum penebaran dan setiap dua minggu selama pemelihar
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Oita, Azusa, Kiwamu Katagiri, Tetsuya Eguchi, et al. "Nutrient-extended input–output (NutrIO) method for the food nitrogen footprint." Environmental Research Letters 16, no. 11 (2021): 115010. http://dx.doi.org/10.1088/1748-9326/ac2c35.

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Abstract Agro-food systems require nutrient input from several sources to provide food products and food-related services. Many of the nutrients are lost to the environment during supply chains, potentially threatening human and ecosystem health. Countries therefore need to reduce their nutrient/nitrogen footprints. These footprints are importantly affected by links between sectors. However, existing assessments omit the links between sectors, especially between the agriculture, manufacturing, and energy sectors. We propose a novel approach called the nutrient-extended input–output (NutrIO) me
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Noblet, J., and M. Etienne. "Estimation of Sow Milk Nutrient Output." Journal of Animal Science 67, no. 12 (1989): 3352. http://dx.doi.org/10.2527/jas1989.67123352x.

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Mendes, Marlete Moreira de Sousa, Claudivan Feitosa de Lacerda, Francisco Éden Paiva Fernandes, Ana Clara Rodrigues Cavalcante, and Teógenes Senna de Oliveira. "Nutrient input and output in an agro forestry system in a semiarid region of Brazil." Forestry Research and Engineering: International Journal 3, no. 4 (2019): 146–52. http://dx.doi.org/10.15406/freij.2019.03.00091.

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Alternatives to traditional agricultural farming practices that combine production and environmental conservation, such as agroforestry systems, are currently being studied. This study aimed to quantify the contribution of trees to nutrient input and output in crops grown in an agrosilvopastoral system in the municipality of Sobral, Ceará State, Brazil. Nutrient concentrations were quantified in shade and sun leaves of Cordia oncocalyx Allemão (called pau-branco) trees in the rainy and dry seasons and in maize leaves at the time of harvest. Nutrient concentrations in different soil layers (0-1
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Yao, Yiwen, Quanhou Dai, Ruxue Gao, Yixian Gan, and Xingsong Yi. "Effects of rainfall intensity on runoff and nutrient loss of gently sloping farmland in a karst area of SW China." PLOS ONE 16, no. 3 (2021): e0246505. http://dx.doi.org/10.1371/journal.pone.0246505.

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Nutrient losses from sloping farmland in karst areas lead to the decline in land productivity and nonpoint source pollution. A specially tailored steel channel with an adjustable slope and underground hole fissures was used to simulate the microenvironment of the "dual structure" of the surface and underground of sloping farmland in a karst area. The artificial rainfall simulation method was used to explore the surface and underground runoff characteristics and nutrient losses from sloping farmland under different rainfall intensities. The effect of rainfall intensity on the nutrient loss of f
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Kumar, Sunil, Dharam Pal, R. S. Garhwal, Anil Kumar, Ankit Gill, and Jyoti Sharma. "Efficacy of integrated nutrient management on soil properties and wheat yield." INTERNATIONAL JOURNAL OF AGRICULTURAL SCIENCES 18, no. 2 (2022): 888–92. http://dx.doi.org/10.15740/has/ijas/18.2/888-892.

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One of the most important aspects of agricultural production is soil fertility and nutrient management which has a direct impact on crop output and quality. However in the long run intensive cropping and chemical fertilizers harmed soil fertility and crop productivity by causing soil erosion, loss of top fertile soil, nutrient leaching, and uneven fertilizer use or little organic manure addition have resulted which caused human and animal suffering. To avoid nutrient mining and fertilizer imbalance, integrated nutrient management (INM) is a strategy for increasing agricultural productivity whi
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Yamamoto, K., and T. Suetsugi. "Estimation of particulate nutrient load usingturbidity meter." Water Science and Technology 53, no. 2 (2006): 311–20. http://dx.doi.org/10.2166/wst.2006.065.

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The “Nutrient Load Hysteresis Coefficient” was proposed to evaluate the hysteresis of the nutrient loads to flow rate quantitatively. This could classify the runoff patterns of nutrient load into 15 patterns. Linear relationships between the turbidity and the concentrations of particulate nutrients were observed. It was clarified that the linearity was caused by the influence of the particle size on turbidity output and accumulation of nutrients on smaller particles (diameter <23 μm). The L-Q-Turb method, which is a new method for the estimation of runoff loads of nutrients using a regr
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Ma'shumah, Siti, and Ellys Kumala Pramartaningthyas. "Electrital Electrical Conductivity Control System in Pakcoy Plant based on Fuzzy Logic Control." Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics 3, no. 4 (2021): 133–39. http://dx.doi.org/10.35882/ijeeemi.v3i4.2.

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Along with increasing consumption of vegetables as a fulfillment of nutrition in the community, it provides a breakthrough to create a new method of growing vegetables, namely using a system of growing vegetables using water called the hydroponic system. In the hydroponic system here using the Nutrient Film Technique (NFT), the NFT technique is a hydroponic cultivation method where roots grow in a shallow nutrient layer and are circulated to get nutrients, water, and oxygen continuously. One of the important things that are a measure of the success of a hydroponic system is the provision of nu
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Dissertations / Theses on the topic "Nutrient output"

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Scott, Kenneth A. "Nutrient characteristics of urban stormwater detention ponds on the Canadian Prairies." Thesis, Edinburgh Napier University, 1997. http://researchrepository.napier.ac.uk/Output/4268.

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The use of artificial ponds for the temporary storage of urban stormwater runoff is a commonly used environmental engineering practice in North America. By releasing runoff at a rate slower than the initial generation rate, on-line flood control is achieved. Urban runoff typically has a high eutrophication potential, so that single unit detention ponds may sustain excess algal/macrophyte growth within only a few years of construction. A research project was undertaken between 1992 and 1995 on stormwater detention ponds in the Province of Saskatchewan, Canada. Three ponds aged 15 to 17 years ol
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Liyana, Pathirana Navoda. "Nutrient-level analysis of the sustainability of food systems." Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/29975.

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Healthy and sustainable dietary transformations offer significant potential to improve the health and sustainability of food systems. However, devising sustainable and healthy diets is challenging due to the lack of understanding of the relationship between nutrients and sustainability. The main aim of this thesis is to introduce a nutrient-level sustainability assessment approach to understand the win-win and trade-offs when developing healthy and sustainable diets. The novel approach for assessing sustainability in relation to macronutrients was introduced by integrating the input-output tec
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Brito, Ana C. "The development of an assimilative capacity model for the sustainable management of nutrients within the Ria Formosa in southern Portugal." Thesis, Edinburgh Napier University, 2010. http://researchrepository.napier.ac.uk/Output/3604.

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Mathematical modelling approaches have been widely used to evaluate the capacity of an ecosystem to assimilate anthropogenic wastes. This is essential to develop sustainable management strategies and for the prevention of eutrophication. This project aimed to assess the importance of the benthic-pelagic interactions in Ria Formosa and to develop a simple biogeochemical model for the management of nutrient inputs. This was done by adapting the simple version of the CSTT model, for pelagic eutrophication, to the system and by adding a benthic primary producer, the microphytobenthos (MPB), which
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Kim, Sei Jin. "Three Essays on the Implications of Environmental Policy on Nutrient Outputs in Agricultural Watersheds and the Heterogeneous Global Timber Model with Uncertainty Analysis." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1439601683.

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Urban, Rodrigo Custódio [UNESP]. "Fragilidade ambiental, qualidades do solo, da água e ocupação urbana na microbacia do córrego Lavapés - Sorocaba/SP." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/98308.

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Made available in DSpace on 2014-06-11T19:29:31Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-03-22Bitstream added on 2014-06-13T18:39:09Z : No. of bitstreams: 1 urban_rc_me_bauru.pdf: 1782806 bytes, checksum: 5b1ac5e4cf0e8837b52089b23e9cb1f2 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Este estudo teve como objetivo efetuar uma análise comparativa entre variáveis físicas e químicas de qualidade de água e solo e da fragilidade ambiental dda microbacia do córrego Lavapés - Sorocaba/SP.
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Bizon, José Márcio Cossi. "Avaliação da sustentabilidade nutricional de plantios de Pinus taeda L. usando um balanço de entrada-saída de nutrientes." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-22102007-092659/.

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O conhecimento da sustentabilidade nutricional dos manejos aplicados às floresta plantadas é necessário para a adequada gestão desses empreendimentos, principalmente com plantações estabelecidas em solos de baixa fertilidade, utilizando a queima de resíduos pré-preparo, e sem a devida reposição nutricional, como é o caso do P.taeda em várias regiões do sul do país. Dada a crescente importância econômica da espécie, e considerando a necessidade de se manter, ou aumentar, sua produtividade, estabeleceu-se um estudo visando estimar a sustentabilidade nutricional de cenários de manejo para o P. ta
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Urban, Rodrigo Custódio. "Fragilidade ambiental, qualidades do solo, da água e ocupação urbana na microbacia do córrego Lavapés - Sorocaba/SP /." Bauru : [s.n.], 2011. http://hdl.handle.net/11449/98308.

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Orientador: Alexandre Marco da Silva<br>Banca: Silvio Frosini de Barros Ferraz<br>Banca: Antonio Fernando Monteiro Camargo<br>Resumo: Este estudo teve como objetivo efetuar uma análise comparativa entre variáveis físicas e químicas de qualidade de água e solo e da fragilidade ambiental dda microbacia do córrego Lavapés - Sorocaba/SP. A área de estudo possui alguns fragmentos florestais remanescentes, e apresenta aumento de área urbanizada. Foram quantificadas quinze variáveis descritoras da situação física, química e hidráulica do solo, in situ ou em laboratório. A amostragem de água foi reali
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Dincher, Marie. "Dynamique comparée des éléments majeurs dans les humus de forme mull dans une hêtraie du Nord-Est de la France." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0170.

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L’humus est le siège de processus clés pour la nutrition des arbres. Cependant, il reste un compartiment de l’écosystème encore peu étudié pour l’ensemble des nutriments et éléments bénéfiques autre que C et N. Ainsi, dans un contexte où les pressions exercées sur les forêts augmentent depuis quelques années, il est important de comprendre la dynamique comparée des éléments de leur arrivée dans l’humus à leur sortie dans le sol. Les objectifs de cette thèse sont (1) d’identifier les mécanismes et les facteurs responsables de la dynamique des éléments majeurs (C, N, P, K, Ca, Mg, Mn, S, Si, Al
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Ding, Shih-Bin, and 丁世彬. "The Impact of Agricultural Activities on Nutrient Input-Output at Alpine Forest Ecosystems in Central Taiwan." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/43871916284052814871.

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碩士<br>國立彰化師範大學<br>地理學系<br>96<br>Lishan area is the major mountain agriculture region in Taiwan. The impact of the intense agricultural activities on high-elevation ecosystems has not been carefully examined. Studies of nutrient input-output are good ways of evaluating ecosystem’s function and health conditions. This study examined weekly bulk deposition and streamwater chemistry at Piluchi Experimental Forest and monthly streamwater chemistry at Herhuanchi together with a previous study to evaluate dynamics of nutrient input-out to evaluate the effect of mountain agriculture on high-elevation
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Hsiao, Hung-Min, and 蕭泓泯. "A comparative study of nutrient input-output at natural broadleaf forest and conifer plantation at Lien-hua-chi Experimental Forest." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/49384854232525309811.

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碩士<br>國立彰化師範大學<br>地理學系<br>94<br>Precipitation and stream water (including natural hardwood and conifer plantation watersheds) in Lien-hua-chi Experimental Forest were collected in 2005 to examine its chemical composition and evaluate nutrient input and output in a natural hardwood forest and a conifer plantation. Results indicate that the volume-weighted mean annual pH of wet-only precipitation was 4.84, lower than the criterion for acid rain (pH < 5.0). It was also lower than the value measured a decade ago at the same site (5.51), despite decreases in the emission of acidic pollutants over t
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Books on the topic "Nutrient output"

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Helvey, J. D. Input-output budgets of selected nutrients on an experimental watershed near Parsons, West Virginia. U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1986.

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Helvey, J. D. Input-output budgets of selected nutrients on an experimental watershed near Parsons, West Virginia. U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1986.

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Helvey, J. D. Input-output budgets of selected nutrients on an experimental watershed near Parsons, West Virginia. U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1986.

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Helvey, J. D. Input-output budgets of selected nutrients on an experimental watershed near Parsons, West Virginia. U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1986.

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Helvey, J. D. Input-output budgets of selected nutrients on an experimental watershed near Parsons, West Virginia. U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1986.

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Lietman, Patricia L. Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania: Effects of pipe-outlet terracing on quantity and quality of surface runoff and ground water in a small carbonate-rock basin near Churchtown, Pennsylvania, 1983-89. U.S. Dept. of the Interior, U.S. Geological Survey, 1997.

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Bekunda, Mateete, Irmgard Hoeschle-Zeledon, and Jonathan Odhong, eds. Sustainable agricultural intensification: a handbook for practitioners in East and Southern Africa. CABI, 2022. http://dx.doi.org/10.1079/9781800621602.0000.

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Abstract This book presents some of the improved agricultural technologies that were validated by the Africa RISING Project in East and Southern Africa (ESA), focusing on smallholder farmers in Malawi, Tanzania, and Zambia, and working in partnership with development (scaling) institutions. It consists of 11 chapters. Chapter 1 shows how gender concerns must be woven into all sustainable intensification (SI) interventions to produce equitable outcomes. It describes activities to enhance women's participation, measure the benefits, and transform gender relations. Chapter 2 describes the perform
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Gross Inputs and Outputs of Nutrients in Undisturbed Forest, Tai Area, Cote D'Ivoire (Tropenbos Series). Tropenbos International, 1993.

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Book chapters on the topic "Nutrient output"

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Majumdar, Kaushik, Robert M. Norton, T. Scott Murrell, et al. "Assessing Potassium Mass Balances in Different Countries and Scales." In Improving Potassium Recommendations for Agricultural Crops. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59197-7_11.

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AbstractEstimating nutrient mass balances using information on nutrient additions and removals generates useful, practical information on the nutrient status of a soil or area. A negative input–output balance of nutrients in the soil results when the crop nutrient removal and nutrient losses to other sinks become higher than the nutrient inputs into the system. Potassium (K) input–output balance varies among regions that have different climates, soil types, cropping systems, and cropping intensity. This chapter illustrates the farm-gate K balances in major production areas of the world and the
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Vitousek, Peter M., Lars O. Hedin, Pamela A. Matson, James H. Fownes, and Jason Neff. "Within-System Element Cycles, Input-Output Budgets, and Nutrient Limitation." In Successes, Limitations, and Frontiers in Ecosystem Science. Springer New York, 1998. http://dx.doi.org/10.1007/978-1-4612-1724-4_18.

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Moharrery, A. "Ability of mathematical models to predict faecal output with a pulse dose of an external marker in sheep and goat." In Modelling nutrient digestion and utilisation in farm animals. Wageningen Academic Publishers, 2011. http://dx.doi.org/10.3920/978-90-8686-712-7_22.

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Oyeagu, Chika E., and Francis B. Lewu. "Why Agricultural Water Productivity Matters: A Review." In Enhancing Water and Food Security Through Improved Agricultural Water Productivity. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-1848-4_2.

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Abstract Due to the increasing population, economic development, and climate change, providing food and water security requires significant changes in the technologies that propel present-day water management. Irrigation is the largest and most inefficient water user, and there is an expectation that even small improvements in agricultural water productivity will enhance water security. Increasing water productivity is a novel practice needed to improved water management for sustainable agriculture, food security and healthy ecosystem. The explanation of water productivity involves the quantit
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Koerselman, W., and J. T. A. Verhoeven. "Nutrient dynamics in mires of various trophic status: nutrient inputs and outputs and the internal nutrient cycle." In Fens and Bogs in the Netherlands. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-7997-1_9.

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Goulding, Keith, T. Scott Murrell, Robert L. Mikkelsen, et al. "Outputs: Potassium Losses from Agricultural Systems." In Improving Potassium Recommendations for Agricultural Crops. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59197-7_3.

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AbstractPotassium (K) outputs comprise removals in harvested crops and losses via a number of pathways. No specific environmental issues arise from K losses to the wider environment, and so they have received little attention. Nevertheless, K is very soluble and so can be leached to depth or to surface waters. Also, because K is bound to clays and organic materials, and adsorbed K is mostly associated with fine soil particles, it can be eroded with particulate material in runoff water and by strong winds. It can also be lost when crop residues are burned in the open. Losses represent a potenti
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"Chapter Seven. NUTRIENT OUTPUTS: PATHWAYS, CONTROLS, AND INPUT-OUTPUT BUDGETS." In Nutrient Cycling and Limitation. Princeton University Press, 2004. http://dx.doi.org/10.1515/9780691190341-010.

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Bhutada, Pritam, Anand Gore, Sarika Narale, and Vasantrao Naik. "ROLE OF INTEGRATED NUTRIENT MANAGEMENT IN SUSTAINABLE AGRICULTURE." In Futuristic Trends in Agriculture Engineering & Food Sciences Volume 3 Book 5. Iterative International Publisher, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bcag5p2ch4.

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Green farming has demonstrated that fertilizers improve the yield of grain crops like wheat and rice like magic. It alters farming techniques. Since the dawn of time, farmers have relied solely on fertilizers and have neglected to practice sustainable farming. Due to the high alert status of population increase, loss of soil fertility, and scarcity of arable land, all of which could have a significant impact on agricultural yield and productivity, a change in agronomic approaches is urgently needed. Diverse sources of plant nutrients are combined to minimize nutrient depletion, maintain soil h
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Ali, Syed Asif. "Achieving Sustainable Agriculture." In Advances in Electronic Government, Digital Divide, and Regional Development. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-6418-2.ch007.

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Sustainable agriculture means an integrated agricultural system (IAS), which is a prolonged or long-term support system that fulfils the requirements of agricultural products, improves the environment (by controlling, improving, and monitoring natural biological cycles), and boosts the economy. Crop product quality and quantity have increased significantly over the last half-century, owing in large part to organic chemistry. Organic chemistry, however, remains a key component of crop protection and helps to create techniques to boost crop output. In the modern era of technology, artificial int
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Can, Seher, and Hamit Can. "Functional Nutritional Strategies for Peak Athletic Performance." In Evaluating the Effectiveness of Functional Ingredients in Sports Nutrition. IGI Global, 2025. https://doi.org/10.4018/979-8-3693-8699-6.ch001.

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Functional nutrition plays a critical role in maximizing athletic performance by adapting dietary strategies to meet the unique physiological needs of athletes. This approach goes beyond general nutritional guidelines and focuses on optimizing digestion, nutrient absorption and energy utilization to support endurance, strength, recovery, and overall health. By integrating whole foods, targeted supplements, and personalized diet plans, functional nutrition helps athletes achieve peak performance, reduce injury risk, and maintain long-term health. This chapter reviews key functional nutrition st
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Conference papers on the topic "Nutrient output"

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Pilvere, Aija, Irina Pilvere, Ilze Upite, and Aleksejs Nipers. "EUROPEAN UNION FARM TO FORK STRATEGY: FERTILIZER USE REDUCTION POSSIBILITIES." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/5.1/s21.64.

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In the European Union (EU), food production needs to become more sustainable and environmental-friendly. Farmers play a crucial role in sustainable agricultural practices on their farms because one of the goals of the EU Farm to Fork Strategy is to reduce nutrient losses by at least 50%, while ensuring that there is no deterioration in soil fertility, which could reduce fertilizer use by at least 20% by 2030. Therefore, the aim of the present research is to examine fertilizer consumption in EU Member States and to assess the impact of the potential fertilizer use reduction by at least 20% by 2
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Floros, Stylianos, Satyajeet S. Bhonsale, Sotiria Gaspari, Simen Akkermans, and Jan F. M. Van Impe. "Modelling the in vitro FooD Digestion SIMulator FooDSIM." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.162389.

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Understanding the complexity of human digestion is critical for designing models that serve as valuable research tools for process simulation and prediction. Due to the high cost of medical intervention &amp; recent advancements in in vitro digestion protocols, increased demand for inexpensive in silico solutions emerges. This study aims to develop a mathematical model that simulates the in vitro dynamic Food Digestion SIMulator (FooDSIM) functionalities via a digital twin approach. Ordinary Differential Equations (ODEs) simulate the system as a series of Continuously Stirred Tank Reactors (CS
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Freitas, Geovani R., Sara M. Badenes, Rui Oliveira, and Fernando G. Martins. "Machine Learning Models for Predicting the Amount of Nutrients Required in a Microalgae Cultivation System." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.105325.

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Effective prediction of nutrient demands is crucial for optimising microalgae growth, maximising productivity and minimising the waste of resources. With the increasing amount of data related to microalgae cultivation systems, data mining and machine learning models to extract additional knowledge have gained popularity. In the development of such models, a data preprocessing stage is necessary due to the poor data quality. At this stage, cleaning and outlier removal techniques are employed to eliminate missing data and outliers, respectively. Afterwards, data splitting and cross-validation st
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Carecci, Davide, Elena Ficara, Ignazio Geraci, Alberto Leva, and Gianni Ferretti. "Plant-wide Modelling of a Biorefinery: Microalgae for the Valorization of Digestate in Biomethane plants." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.120656.

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Microalgae cultivation on liquid digestate from the anaerobic co-digestion of agricultural feedstocks is an interesting option for digestate nutrient removal and resource recovery coupled to value-added biomass production. In this paper, a first-principle plant-wide modelling of the process is described. Two well-established models for anaerobic digestion (IWA � ADM1) and algae-based bioremediation processes (ALBA) were considered and modified with necessary equations and extensions to develop a coherent interface between the state variables of the two models. The resulting system is composed
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Kleis, Stanley J., and Cynthia M. Begley. "Mass Transport Considerations for Micro-Gravity Cell Cultures in the NASA/JSC Bioreactor." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1311.

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Abstract The current NASA/JSC rotating wall perfused bioreactor vessel was developed to provide an environment for the culture of mammalian cells with a controllable and low level of mechanical stress. The accurate prediction of the transport of the nutrients and oxygen to the cells requires a detailed knowledge of the flow field, the concentration distributions of various quantities within the fluid phase, and the motion of the microcarriers with cells relative to the fluid phase. Computed velocity fields were used to numerically solve for the transient scalar concentration distributions of o
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Ouchi, Kazuyuki, Seiko Ogiwara, Eiichi Kobayashi, Kenji Fukumiya, Masayuki Yonezawa, and Ken Kato. "Ocean Nutrient Enhancer: Creation of Fishing Ground Using Deep Ocean Water." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28355.

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The project to create the fishing ground in the open ocean by rising Deep Ocean Water (DOW) and discharging it in the euphotic layer where photosynthesis can be done by DOW’s rich nutrient salt has been carried out since April 2000, sponsored by Japanese Government Fisheries Agency and Marino-Forum 21. The name of this machine is called Ocean Nutrient Enhancer (ONE for short). As the output of the first year research which includes tank tests, computer simulations and feasibility studies, following outline of the ONE’ concept is proposed. • Rising DOW of 500m depth and 500,000m3/day with the s
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Zhukouskaya, L., T. Semashko, and M. Muntsianava. "Evaluation of organic waste application efficiency for synthesis of cholesterol oxidases." In 5th International Scientific Conference on Microbial Biotechnology. Institute of Microbiology and Biotechnology, 2022. http://dx.doi.org/10.52757/imb22.44.

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One of the major challenges in biothechnology is the rational disposal of enormous volumes of organic wastes released by the global industrial sector. Molasses and glycerol are referred to widely distributed types of waste materials. Molasses is a by-product of sugar refining. Its yield is approximately 4,6% by weight of the processed sugar beet mass. Molasses is distinguished by unpleasant odor and taste making it largely inedible for humans. Glycerol is one of the main components of organic waste discharged by manufacturers of biofuel, foodstuffs and cosmetics. Significant amounts of glycero
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Sandeepanie, Nilakshi, Samadhi Rathnayake, and Amali Gunasinghe. "Paddy Disease Identification and Impact Calculation Using Machine Learning." In Proceedings of the 2nd International Conference on Sustainable & Digital Business. SLIIT Business School, 2023. https://doi.org/10.54389/pxgr3356.

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Rice is a crucial staple crop globally, providing over half of humanity's caloric intake. It supports the livelihoods of small-scale farmers and landless laborers worldwide. With the growing population, there is a high demand for rice production. Sri Lanka is renowned for its high- quality rice and has a long history of paddy cultivation. However, not all the country's 708,000 hectares of land dedicated to paddy cultivation are utilized due to water scarcity and unstable terrain. The objective of this paper is to explore the ways of enhancing the quality of the paddy crop during its vegetative
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Komulainen, Tiina, Abdul Malik Baqeri, Einar Nermo, et al. "Estimation of effluent nutrients in municipal MBBR process." In 64th International Conference of Scandinavian Simulation Society, SIMS 2023 Västerås, Sweden, September 25-28, 2023. Linköping University Electronic Press, 2023. http://dx.doi.org/10.3384/ecp200037.

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The recently updated European Union’s Urban Waste Water Treatment Directive proposal, European Green Deal, Biodiversity Strategy for 2030, and EU’s Energy System Integration highlight a pressing need for innovative biological nutrient removal processes and energy-efficient control methods to reduce pollution and minimize the carbon footprint at water resource recovery facilities. The aim of the PACBAL research project is to develop estimation methods for nutrient profile in a novel industrial Moving Bed Biofilm Reactor (MBBR) process. This study devises and assesses a range of data-driven meth
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Millers, Janis, and Irina Pilvere. "Possibilities of Biogas Production from Livestock Waste in Latvia." In 22nd International Scientific Conference. “Economic Science for Rural Development 2021”. Latvia University of Life Sciences and Technologies. Faculty of Economics and Social Development, 2021. http://dx.doi.org/10.22616/esrd.2021.55.043.

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With the adoption of the Green Deal in the European Union (EU), the role of biodiversity, basic principles of the circular economy, climate change mitigation, forest protection and renewable energy increased. Since 2007, biogas production in Latvia has increased significantly, as it was possible to receive co-funding from the EU Funds for the construction of biogas plants. In 2021, inputs of agricultural origin are used by 40 biogas plants with an average installed capacity of 1 MW. The emergence of biogas plants on livestock farms is facilitated by the development of a circular economy produc
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Reports on the topic "Nutrient output"

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Briones, Roehlano, Howarth Bouis, Imelda Angeles-Agdeppa, Isabel Espineli, and Ma Lynell Maniego. Will Food Be Affordable to Filipinos by 2030? Alternative Expenditure Policies toward Ending Hunger by 2030. Philippine Institute for Development Studies, 2023. http://dx.doi.org/10.62986/dp2023.23.

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The current inflationary period has placed the spotlight on hunger and food insecurity, as the current Philippine Development Plan has strongly emphasized the attainment of food affordability for all Filipinos. This study offers a scenario analysis using computable general equilibrium modeling of household purchasing power and affordability of a diet with sufficient energy, protein, and Vitamin A. Scenarios posited are as follows: Reference scenario, which projects forward from recent past trends; the Subsidy scenario, based on producer support; and Productivity scenario, which is a long-term
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Einarsson, Rasmus. Nitrogen in the food system. TABLE, 2024. http://dx.doi.org/10.56661/2fa45626.

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Nitrogen (N) plays a dual role in the agri-food system: it is an essential nutrient for all life forms, yet also an environmental pollutant causing a range of environmental and human health impacts. As the plant nutrient needed in greatest quantities, and as a building block of proteins and other biomolecules, N is a necessary part of all life. In the last century, an enormous increase of N turnover in the agri-food system has enabled increasing per-capita food supply for a growing world population, but as an unintended side effect, N pollution has increased to levels widely agreed in science
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Helvey, J. D., Samuel H. Kunkle, and Samuel H. Kunkle. Input-output budgets of selected nutrients on an experimental watershed near Parsons, West Virginia. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experimental Station, 1986. http://dx.doi.org/10.2737/ne-rp-584.

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Helvey, J. D., Samuel H. Kunkle, and Samuel H. Kunkle. Input-output budgets of selected nutrients on an experimental watershed near Parsons, West Virginia. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experimental Station, 1986. http://dx.doi.org/10.2737/ne-rp-584.

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Lindfors, Axel, and Roozbeh Feiz. The current Nordic biogas and biofertilizer potential: An inventory of established feedstock and current technology. Linköping University Electronic Press, 2023. http://dx.doi.org/10.3384/9789180752558.

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Biogas solutions in the Nordics is undergoing rapid developments and the demand for biogas is ever increasing because of the Russian war on Ukraine and the transition to fossil free industry and transportation. Furthermore, with the introduction of several multi-national companies into the biogas sector in the Nordics and with more and more biomethane being traded across national borders, it becomes increasingly important to view biogas solutions in the Nordics as a whole and to go beyond the confines of each individual nation. Since the transition and the current energy crisis require a quick
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Bennett, Alan B., Arthur A. Schaffer, Ilan Levin, Marina Petreikov, and Adi Doron-Faigenboim. Manipulating fruit chloroplasts as a strategy to improve fruit quality. United States Department of Agriculture, 2013. http://dx.doi.org/10.32747/2013.7598148.bard.

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The Original Objectives were modified and two were eliminated to reflect the experimental results: Objective 1 - Identify additional genetic variability in SlGLK2 and IPin wild, traditional and heirloom tomato varieties Objective 2 - Determine carbon balance and horticultural characteristics of isogenic lines expressing functional and non-functional alleles of GLKsand IP Background: The goal of the research was to understand the unique aspects of chloroplasts and photosynthesis in green fruit and the consequences of increasing the chloroplast capacity of green fruit for ripe fruit sugars, yiel
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Guy, Charles, Gozal Ben-Hayyim, Gloria Moore, Doron Holland, and Yuval Eshdat. Common Mechanisms of Response to the Stresses of High Salinity and Low Temperature and Genetic Mapping of Stress Tolerance Loci in Citrus. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7613013.bard.

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The objectives that were outlined in our original proposal have largely been achieved or will be so by the end of the project in February 1995 with one exception; that of mapping cold tolerance loci based on the segregation of tolerance in the BC1 progeny population. Briefly, our goals were to 1) construct a densely populated linkage map of the citrus genome: 2) map loci important in cold and/or salt stress tolerance; and 3) characterize the expression of genes responsive to cold land salt stress. As can be seen by the preceding listing of accomplishments, our original objectives A and B have
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