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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

SUBHASH BABU, D.S. RANA, and ANIL K. CHOUDHARY. "Effect of sunflower stover and nutrients management on energetics, nutrient acquisition and soil nutrient balance of pigeonpea (Cajanus cajan)sunflower (Helianthus annuus) cropping system." Indian Journal of Agronomy 59, no. 4 (2001): 549–55. http://dx.doi.org/10.59797/ija.v59i4.4595.

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A fixed plot field experiment was carried out during rainy (kharif) and spring seasons of 200809 and 200910 at New Delhi, to assess the effect of sunflower stover and nutrients management on energetics, nutrient acquisi- tion and soil-nutrient budgeting of pigeonpea [Cajanus cajan (L.) Millsp.]sunflower (Helianthus annuus L) crop- ping system. Direct effect of sunflower stover incorporation had negative impact on pigeonpea productivity; how- ever; it excreted positive effect on productivity of succeeding sunflower crop in system mode. With respect to ener- getics, sunflower stover incorporatio
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12

Kadlec, John A. "Input–Output Nutrient Budgets for Small Diked Marshes." Canadian Journal of Fisheries and Aquatic Sciences 43, no. 10 (1986): 2009–16. http://dx.doi.org/10.1139/f86-246.

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Input–output nutrient budgets were constructed for 8 and 10 diked contiguous 4- to 6-ha marshes in 1981 and 1982, respectively. Because the marshes studied were created by diking within a larger marsh, the water budgets were dominated by water pumped in to replace roughly equal evapotranspiration and seepage losses. Chloride budgets could not be used to confirm water budgets, apparently because of a transfer to the sediments by a freezing-out process in winter and a subsequent diffusion back into the surface water during the ice-free season. With replicated ponds and accurate water budgets, go
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13

Ondersteijn, C. J. M., A. G. J. M. Oude Lansink, G. W. J. Giesen, and R. B. M. Huirne. "Improving Nutrient Efficiency as a Strategy to Reduce Nutrient Surpluses on Dairy Farms." Scientific World JOURNAL 1 (2001): 866–72. http://dx.doi.org/10.1100/tsw.2001.266.

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Dutch nutrient policy aims at reducing leaching of agricultural nutrients by internalizing the negative externalities associated with inefficient nutrient use. This is done by taxation of nitrogen and phosphate surpluses that exceed a hectare-based threshold of maximum-allowed surpluses. One management strategy farmers may use to reduce the nutrient surpluses on their farms is to improve the nutrient efficiency of the agricultural production process. This study employs Data Envelopment Analysis (DEA) to calculate nitrogen and phosphate efficiencies and an overall nutrient efficiency measure fo
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14

Banik, Abhisek, Aditi Pahari, Hirak Banerjee, and Sourav Patra. "Interaction Effects of Nutrient and Water on Crop Production System under Dry and Irrigated Agriculture System." Journal of Experimental Agriculture International 46, no. 9 (2024): 967–84. http://dx.doi.org/10.9734/jeai/2024/v46i92894.

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Many areas in India, including dryland areas, are under stress from two main obstacles to agricultural output, namely, inadequate soil nutrients and a scarcity of water. In most rainfed regions, except for a few places that can conduct irrigation, low precipitation levels and their erratic distribution usually result in soil water deficiency which leads to water as well as the instances of nutritional stress. Hence, in sustainable agricultural production systems, soil water and nutrient stress are major concerns. In crop production systems, the interplay between water and nutrients might yield
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15

Cheng, Hao, Chen Lin, Liangjie Wang, Junfeng Xiong, Lingyun Peng, and Chenxi Zhu. "The Influence of Different Forest Characteristics on Non-point Source Pollution: A Case Study at Chaohu Basin, China." International Journal of Environmental Research and Public Health 17, no. 5 (2020): 1790. http://dx.doi.org/10.3390/ijerph17051790.

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Forestland is a key land use/land cover (LULC) type that affects nonpoint source (NPS) pollution, and has great impacts on the spatiotemporal features of watershed NPS pollution. In this study, the forestland characteristics of the Chaohu Basin, China, were quantitatively represented using forestland types (FLTs), watershed forest coverage (WFC) and forest distance from the river (DFR). To clarify the impact of forests on NPS pollution, the relationship between forestland characteristics and watershed nutrient outputs (TN and TP) was explored on a monthly scale using SWAT (Soil and Water Asses
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16

Silva, Edney Pereira da, Nilva Kazue Sakomura, Luciano Hauschild, and Robert Mervyn Gous. "Reading model to estimate optimum economic intakes of amino acids for poultry." Ciência Rural 45, no. 3 (2015): 450–57. http://dx.doi.org/10.1590/0103-8478cr20120799.

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The use of a linear-plateau procedure to describe the response of an individual in the population has theoretical support, since the maximum potential performance of each individual is genetically determined, and any increment in intake of the limiting nutrient above maintenance will result in a linear response in output until this genetic potential, and hence requirement, is reached. However, because of the distribution of body weights and maximum potential outputs in the population, the mean response of the population is curvilinear, which negates the possibility of defining a 'requirement'
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17

Suharto, Yohanes Bayu, Herry Suhardiyanto, Anas Dinurroman Susila, and Supriyanto. "Artificial Neural Networks Model for Photosynthetic Rate Prediction of Leaf Vegetable Crops under Normal and Nutrient-Stressed in Greenhouse." HAYATI Journal of Biosciences 32, no. 2 (2024): 300–309. https://doi.org/10.4308/hjb.32.2.300-309.

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Photosynthesis is one of the essential processes in plant physiology that produces glucose and oxygen to support plant growth. Nutrient stress conditions will affect the photosynthetic rate in plants. The model predicting photosynthetic rates based on environmental conditions, nutrients, and plant types will be highly beneficial for farmers in tweaking these variables to maximize plant photosynthesis. This research focused on assessing the impact of nutrient stress on the photosynthetic rate in leaf vegetable crops and aimed to create a model using artificial neural networks (ANN) to predict p
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18

Smith Jr., C. T., M. L. McCormack Jr., J. W. Hornbeck, and C. W. Martin. "Nutrient and biomass removals from a red spruce – balsam fir whole-tree harvest." Canadian Journal of Forest Research 16, no. 2 (1986): 381–88. http://dx.doi.org/10.1139/x86-065.

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A mechanized whole-tree harvest was conducted on a watershed in central Maine dominated by Picearubens Sarg. and Abiesbalsamea (L.) Mill. The harvest removal and redistribution of biomass, nitrogen, phosphorus, calcium, magnesium, and potassium were estimated and evaluated with respect to estimates of site nutrient reserves. Regression equations were developed to estimate the nutrient contents and ovendry weight of the aboveground components of the Picearubens and Abiesbalsamea. Unit area estimates of nutrient and biomass removals were based on the application of the regression equations to a
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19

Sheldrick, William F., J. Keith Syers, and John Lingard. "Soil nutrient audits for China to estimate nutrient balances and output/input relationships." Agriculture, Ecosystems & Environment 94, no. 3 (2003): 341–54. http://dx.doi.org/10.1016/s0167-8809(02)00038-5.

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20

Lin, T. C., P. L. Shaner, L. J. Wang, et al. "Effects of mountain agriculture on nutrient cycling at upstream watersheds." Hydrology and Earth System Sciences Discussions 12, no. 5 (2015): 4785–811. http://dx.doi.org/10.5194/hessd-12-4785-2015.

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Abstract. The expansion of agriculture to rugged mountains can exacerbate negative impacts of agriculture activities on ecosystem function. In this study, we monitored streamwater chemistry of four watersheds with varying proportions of agricultural lands (0.4, 3, 17, 22%) and rainfall chemistry of two of the four watersheds at Feitsui Reservoir Watershed in northern Taiwan to examine the effects of agriculture on watershed nutrient cycling. We found that the greater the proportions of agricultural lands, the higher the ion concentrations, which is evident for fertilizer-associated ions (NO3-,
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21

Ma'ruf, Amar, and Syahminar Syahminar. "A Review: Plant Damage Due to Nutrient Imbalance and Strategies to Increase Nutrient Efficiency." Tropical Plantation Journal 3, no. 2 (2024): 29–36. http://dx.doi.org/10.56125/tpj.v3i2.44.

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The nutritional state of a plant can range from acute poisoning to acute deficiency. For broad purposes, it could be helpful to categorize the nutritional status into four groups: surplus, ideal, inadequate, and extensive. Nutrients that are considered essential include boron (B), iron (Fe), manganese (Mn), copper (Cu), zinc (Zn), nickel (Ni), molybdenum (Mo), calcium (Ca), magnesium (Mg), sulfur (S), and chlorine (Cl). Every nutrient has an effect on the metabolism of plants at every stage of their growth. Of course, breeding techniques are used to improve the efficiency with which plants tak
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M, Sowmiya, and Krishnaveni S. "Convolutional Neural Network Based Plant Nutrient Deficiency Detection." ECS Transactions 107, no. 1 (2022): 5625–35. http://dx.doi.org/10.1149/10701.5625ecst.

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Nutrient deficiency is a condition in plants in which the plant lacks particular amount of nutrients which are essential for the healthy state of a plant. In this paper, an automated nutrition deficiency detection system has been proposed using Convolutional Neural Network. Spatial information in an image is obtained by using Convolutional Neural Network. The proposed system can identify if the following nutrients: nitrogen, phosphorus, and potassium, are present in proper amounts and holds an accuracy percentage as high as 95%. The final output is an user interface which is made very simple a
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Poels, R. L. H. "Nutrient input and output in undisturbed and silviculturally treated tropical rain forest in Surinam." Netherlands Journal of Agricultural Science 37, no. 4 (1989): 383–86. http://dx.doi.org/10.18174/njas.v37i4.16624.

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Nutrient inputs and outputs in a catchment area of undisturbed forest were compared with those in a catchment area of silviculturally treated forest in Surinam. Treatment was according to the Celos Silvicultural System. The sustainability of this system on poor tropical soils was tested. Treatment slightly increased nutrient outflow by creek water, but even in the treated area nutrient outflow was still smaller than nutrient inflow by rain water. (Abstract retrieved from CAB Abstracts by CABI’s permission)
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24

Kurnain, Ahmad, M. Mahbub, M. Septiana, A. M. Makalew, and A. Murjani. "Internal flow of nutrients in organic farming systems in tidal swamp." IOP Conference Series: Earth and Environmental Science 974, no. 1 (2022): 012102. http://dx.doi.org/10.1088/1755-1315/974/1/012102.

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Abstract Sustainable nutrient management is critical to the success of an agroecosystem. The potential of nutrient flow to agroecosystems in tidal swamps can be observed in several of soil and water management. Tidal swamp land management based on surjan and tabukan system are often used to farm several sub-agricultures, namely rice fields, ponds, and citrus plantations. This study aimed to determine N nutrients’ input, output, and internal flow in organic farming systems. This study is limited to observing the internal components. The integrated organic farming system in tidal swampland, usua
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Gaddisa, Mathewos. "Review on Integrated Nutrient Management on Yield and Yield Components of Okra in Ethiopia." International Journal of Food Engineering and Technology 8, no. 2 (2024): 34–41. https://doi.org/10.11648/j.ijfet.20240802.13.

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Maintaining soil fertility necessitates applying inorganic and organic fertilizer sources in balance. Vegetable crops cannot be successfully produced without proper plant nutrition. Though little is known about it, okra is a crop that is commonly farmed in western Ethiopia and is rather adaptable. Grown across Ethiopia, okra is a vegetable crop with significant economic value, especially in the southwest region. For okra's output to increase integrated use of chemical and organic fertilizer on yield and yield components is essential. By optimizing the benefits from all available plant
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26

Birkett, Stephen, and Kees de Lange. "Calibration of a nutrient flow model of energy utilization by growing pigs." British Journal of Nutrition 86, no. 6 (2001): 675–89. http://dx.doi.org/10.1079/bjn2001443.

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A computational framework to represent energy utilization for body protein and lipid accretion by growing pigs is presented. Nutrient and metabolite flows, and the biochemical and biological processes which transform these, are explicitly represented in this nutritional process model. A calibration procedure to adjust the marginal input–output response is described, and applied, using reported experimental results, to determine a complete set of parameters for representing energy utilization by growing pigs. A reasonable value for minimum basal energy requirements is also determined. Although
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27

Varun, G. "AI Model for Identification of Micro-Nutrient Deficiency in Banana Crop." INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 06 (2025): 1–9. https://doi.org/10.55041/ijsrem.ncft040.

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ABSTRACT This study offers a sophisticated convolutional neural network (CNN) model that uses leaf image analysis to identify micronutrient deficits in banana crops. For the best crop growth and output, proper nutrition is necessary, and deficits in important nutrients can negatively affect the productivity and health of plants. In order to tackle this issue, we have created a customized CNN model that uses detailed leaf photos to identify and categorize different nutrient shortages. A large dataset of banana leaves displaying various deficiency signs was employed in the study to train and ass
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28

Julianti, Miranda, and Rakhmat Kurniawan R. "Measuring Water Content in Hydroponic Plants Based on PH Values and Nutriens Using Fuzzy Logic Microcontroller Based Tsukamoto." Journal of Computer Networks, Architecture and High Performance Computing 6, no. 4 (2024): 1863–74. http://dx.doi.org/10.47709/cnahpc.v6i4.4764.

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Hydroponic cultivation is a method of planting without soil by utilizing water containing nutrients and oxygen at certain levels. Regulation and monitoring of pH, nutrients (TDS), and water temperature are crucial factors in the success of a hydroponic system. Inaccuracies in nutrient water management can significantly affect plant growth. This study aims to design an automation system capable of monitoring pH and water nutrient levels using the Fuzzy Tsukamoto method based on the Nodemcu ESP32 microcontroller. The sensors used in this study are the MSP340 pH Module sensor to measure acidity (
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Muhilan, Gangadaran, Venkatraman Ganesan Venkatesan, A. Kalaiselvi, Kannan Poongothai Leninbabu, S. Harini, and M. Karthikeyan. "Unravelling the Zone of Rhizosphere and its Biotic Interaction over Plant-Soil Relationship." International Journal of Current Microbiology and Applied Sciences 13, no. 11 (2024): 68–81. https://doi.org/10.20546/ijcmas.2024.1311.009.

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Intensive agriculture, while increasing food production, has caused second generation problems in respect of nutrient imbalance including greater mining of soil nutrients to the extent of 10 million tons every year depleting soil fertility, emerging deficiencies of secondary and micronutrients, decline of water table and its quality of water, decreasing organic carbon content, and overall deterioration in soil health. Indian soils not only show deficiency in both primary nutrients (Nitrogen, Phosphorous and Potassium) but also of secondary nutrients (Sulphur, Calcium and Magnesium) and micronu
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Woods, V. B., D. J. Kilpatrick, and F. J. Gordon. "Development of empirical models to describe the response in lactating dairy cattle to changes in nutrient intake." Proceedings of the British Society of Animal Science 2001 (2001): 196. http://dx.doi.org/10.1017/s1752756200005780.

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Empirical models relate nutrient inputs and outputs statistically, without considering the intervening metabolism of the animal (France and Thornley, 1984). Current rationing systems (e.g. ARC, 1980; Jarrige, 1988) are based on empirical models of energy and protein utilisation within the animal and do not enable prediction of responses to changes in nutrient inputs (Beever et al., 1991). Rook et al. (1990) had limited success in attempting to develop empirical regression models to describe the effect of nutrient input on milk constituent yields in dairy cows. The aim of the current study was
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Behrendt, Horst. "Inventories of point and diffuse sources and estimated nutrient loads - a comparison for different river basins in Central Europe." Water Science and Technology 33, no. 4-5 (1996): 99–107. http://dx.doi.org/10.2166/wst.1996.0493.

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A comparison of the estimated emissions (input) with the measured loads at monitoring stations (output) is presented for the large Rivers Rhine, Elbe and its main tributaries and for the River Warnow, a smaller river in the north-east part of Germany. The comparison shows that the discrepancies between the estimated emissions and the measured load is small for the Rhine and its main tributaries, Mosel, Neckar and Main. Large discrepancies were found for the Elbe and its main tributaries. For all investigated river systems a strong relationship exists between the quotient of measured nutrient l
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Kumar, M., S. Mitra, A. Bera, and M. R. Naik. "Energy use pattern of diversified cropping systems under different nutrient and crop residue management practices in Eastern Indo-Gangetic plain." Journal of Environmental Biology 42, no. 4 (2021): 1053–61. http://dx.doi.org/10.22438/jeb/42/4/mrn-1463.

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Aim: Assessment of energy input output relationship, greenhouse gases emission and carbon footprint of diversified jute-rice cropping systems under different nutrients and crop residue management practices. Methodology: The inventory was prepared for all inputs required for crop cultivation and outputs of crops in cropping systems. These inputs and outputs were converted into energy by multiplying with energy equivalent coefficient and CO2 emission coefficient following standard procedure. Results: Jute-rice-baby corn cropping system recorded significantly higher net energy (324 GJ ha-1) and e
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Sutardi, Kristamtini, Heni Purwaningsih, et al. "Nutrient Management of Shallot Farming in Sandy Loam Soil in Tegalrejo, Gunungkidul, Indonesia." Sustainability 14, no. 19 (2022): 11862. http://dx.doi.org/10.3390/su141911862.

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The serious problems of sandy soils for crop development are low water-holding capacity, nutrient retention, and low content of all nutrients. The objective of the study was to increase the nutrient content of sandy soil and evaluate nutrient types that mostly affect the high shallot yield with reasonable economic values. The field experiment was conducted on the upland sandy loam soil. Six treatments consisting of complete nutrients, N-, P-, K-, Mg- and S-omission tests were arranged in a randomly completed block design with four replicates. The observed parameters included soil physicochemic
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Setyastika, Ursulin Sacer, Sri Rahayu Utami, Syahrul Kurniawan, and Christanti Agustina. "Is Long-term Cassava-based Agriculture Sustainable? (Case Study of Potassium Content in the Soil)." IOP Conference Series: Earth and Environmental Science 1131, no. 1 (2023): 012003. http://dx.doi.org/10.1088/1755-1315/1131/1/012003.

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Abstract Farmer’s interest in planting cassava is relatively high because cassava is one of tolerant commodities toward drought, and low soil fertility. With minimum input, cassava still grow and produce. However, cassava absorb greater nutrients, especially potassium (K), leading to the depletion of essential nutrient availability. This research was carried out in Pati, Central Java, aimed to determine K nutrients status in the soil at the various durations of cassava land use. The research consisted of two factors, i.e 1) duration under cassava (five years, 10 yr, and 15 yr), and 2) slope (8
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Pavkovych, Serhii, Nataliia Ohorodnyk, Ivan Dudar, and Denys Syvak. "YIELD AND NUTRIENT OUTPUT AT DIFFERENT SOYBEAN SEED SOWING RATES." Deutsche internationale Zeitschrift für zeitgenössische Wissenschaft 66 (October 19, 2023): 5–7. https://doi.org/10.5281/zenodo.10021590.

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The article presents research results on the impact of different soybean seed sowing rates on yield and the output of nutritional components, including digestible protein units. It is shown that a sowing rate of 900,000 seeds per hectare resulted in the highest soybean grain yield and the greatest output of nutrients compared to sowing rates of 800,000 and 1,000,000 seeds per hectare.
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Cheplick, G. P. "Nutrient availability, dimorphic seed production, and reproductive allocation in the annual grass Amphicarpum purshii." Canadian Journal of Botany 67, no. 8 (1989): 2514–21. http://dx.doi.org/10.1139/b89-321.

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The effect of nutrient addition on dimorphic seed reproduction and biomass allocation was investigated in amphicarpic peanut grass (Amphicarpum purshii Kunth). This annual, which grows in disturbed habitats on the Coastal Plain of eastern North America, produces self-fertilizing cleistogamous spikelets under ground and potentially outcrossing chasmogamous spikelets above ground. For each of three sibling families raised in the greenhouse from aerial seeds, 11 plants were fertilized twice during the growth period while 11 plants received no fertilizer. Total spikelet output and seed weight incr
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Sawa, Karolina, Leszek Hejduk, Johannes Deelstra, and Lillian Øygarden. "Nutrient output from rural areas on the example of two catchments Skuterud and Zagożdżonka." Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation 43, no. 1 (2011): 71–85. http://dx.doi.org/10.2478/v10060-008-0094-2.

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Nutrient output from rural areas on the example of two catchments Skuterud and Zagożdżonka In this paper, two rural catchment - the Zagożdżonka catchment in Poland and the Skuterud catchment in Aas, Akershus county in Norway are compared. In addition to the general description, more in particular information, runoff, N-NO3 load, P-PO4 load, total phosphorus and total nitrogen concentrations in streams are compared. The data compared are from 1993 to 1995 in Zagożdżonka catchment and from 1994-1996 from Skuterud catchment. The average concentration of N-NO3 in Zagożdżonka River in the period wa
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Mokhtar, Mohammad Syakir, and Mahanijah Md Kamal. "DEVELOPMENT OF AUTOMATED PH CONTROLLER SYSTEM FOR NFT HYDROPONIC." Platform : A Journal of Engineering 7, no. 1 (2023): 10. http://dx.doi.org/10.61762/pajevol7iss1art21995.

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In a hydroponics system, pH level is one of the most important parameters that affect the way plants respond to a hydroponic nutrient solution. The range of pH levels depends on the type of plants in the hydroponic system. The plant can uptake nutrients efficiently if the nutrient solution needs to be consistently controlled within the pH range. It is important to ensure a balanced pH level in nutrient solutions to maintain the proper growth of plants. Therefore, the pH level in the nutrient solution will automatically be controlled in this Arduino-based system. A mini NFT hydroponic system wa
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Marley, C. L., R. Fychan, M. D. Fraser, R. Sanderson, and R. Jones. "The effect of feeding ensiled alternative forages compared with ensiled ryegrass on excreta losses from growing lambs." Proceedings of the British Society of Animal Science 2009 (April 2009): 162. http://dx.doi.org/10.1017/s1752756200030015.

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An experiment investigated the effects of using ensiled alternative forages compared with ensiled ryegrass on lamb productivity, nutrient use efficiency and total excreta losses in a lamb finishing system. Lambs offered alternative forages had a higher liveweight gain and nitrogen use efficiency than lambs offered ryegrass silage (P < 0.001) (Marley et al., 2007). However, balancing the input and output of nutrients within the farm system is critical to ensure both short-term productivity and long-term sustainability, as producers aim to establish whole-farm nutrient balance plans and reduc
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Bhattarai, Shreeya, Prem Parajuli, and Anna Linhoss. "Integrated Modeling Approach to Assess Freshwater Inflow Impact on Coastal Water Quality." Water 16, no. 21 (2024): 3012. http://dx.doi.org/10.3390/w16213012.

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The quality of freshwater input from tributaries of the Western Mississippi Sound (WMSS) impacts the quality of coastal water. Hydrological and hydrodynamic models can be coupled to assess the impact of freshwater inflow from coastal watersheds. This study aims to compare the performance of a hydrodynamic model and a hydrological–hydrodynamic coupled model in detecting the effect of freshwater inflow from the coastal watersheds of the state of Mississippi into the WMSS. A hydrological model, the Soil and Water Assessment Tool (SWAT), and a hydrodynamic model, the visual Environmental Fluid Dyn
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Bruijnzeel, L. A. "Nutrient input–output budgets of tropical forest ecosystems: a review." Journal of Tropical Ecology 7, no. 1 (1991): 1–24. http://dx.doi.org/10.1017/s0266467400005010.

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ABSTRACTAtmospheric gains and hydrologic losses of calcium, magnesium, potassium, phosphorus and nitrogen for 25 tropical forest sites on a variety of geological substrates are reviewed. The data set comprised 19 lowland and six montane sites. Twenty studies were subjected to further analysis after initial quality control. These were subdivided into forests on (1) very infertile soils (N = 5), (2) (moderately) infertile soils (N = 5), (3) moderately fertile soils (N = 4) and (4) fertile soils (N = 4). Two studies pertaining to large river basins were treated separately. Although variation in n
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Satter, L. D., T. J. Klopfenstein, and G. E. Erickson. "The role of nutrition in reducing nutrient output from ruminants." Journal of Animal Science 80, E-suppl_2 (2002): E143—E156. http://dx.doi.org/10.2527/animalsci2002.80e-suppl_2e143x.

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Hölscher, D., R. F. Möller, M. Denich, and H. Fölster. "Nutrient input-output budget of shifting agriculture in Eastern Amazonia." Nutrient Cycling in Agroecosystems 47, no. 1 (1996): 49–57. http://dx.doi.org/10.1007/bf01985718.

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Dibble, Christian C., and Brendan D. Manning. "Signal integration by mTORC1 coordinates nutrient input with biosynthetic output." Nature Cell Biology 15, no. 6 (2013): 555–64. http://dx.doi.org/10.1038/ncb2763.

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Birkett, Stephen, and Kees de Lange. "A computational framework for a nutrient flow representation of energy utilization by growing monogastric animals." British Journal of Nutrition 86, no. 6 (2001): 661–74. http://dx.doi.org/10.1079/bjn2001442.

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A computational framework to represent nutrient utilization for body protein and lipid accretion by growing monogastric animals is presented. Nutrient and metabolite flows, and the biochemical and biological processes which transform these, are explicitly represented. A minimal set of calibration parameters is determined to provide five degrees of freedom in the adjustment of the marginal input–output response of this nutritional process model for a particular (monogastric) animal species. These parameters reflect the energy requirements to support the main biological processes: nutrient intak
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Kumar, Mandeep, Y. K. Singh, Shravan Kumar Maurya, et al. "Efficient Use of Nano-fertilizer for Increasing Productivity and Profitability along with Maintain Sustainability in Rice Crop: A Review." International Journal of Environment and Climate Change 13, no. 10 (2023): 1358–68. http://dx.doi.org/10.9734/ijecc/2023/v13i102788.

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The need for food and the expanding global population have put enormous pressure on agriculture to increase crop yield while preserving sustainability. Since rice is a staple diet for millions of people, novel methods are needed to increase yields without harming the environment. The possible advantages of using nano fertilizers in rice farming are examined in this abstract in order to raise yields, increase farmer profitability, and ensure long-term sustainability. Nano-sized carriers created for effective nutrient delivery to crops are called nano fertilizers, an innovative application of na
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Figueiredo, Mércia Regina Pereira de, Eloisa de Oliveira Simões Saliba, Geraldo Sérgio Carneiro Barbosa, Juliana Cristina Nogueira Colodo, Rebeca Agnes Almança, and Guilherme Rocha Moreira. "Digestibility of diets with passion fruit by-product estimated through external and internal markers in dairy heifers." Acta Scientiarum. Animal Sciences 43 (August 19, 2020): e50241. http://dx.doi.org/10.4025/actascianimsci.v43i1.50241.

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This study examined the influence of the external markers chromium oxide (CO), titanium dioxide (TD), isolated, purified and enriched lignin (LIPE®) and isolated, purified, enriched lignin in nanoparticles (NANOLIPE®) as well as the internal markers indigestible dry matter (iDM), indigestible neutral detergent fiber (iNDF) and indigestible acid detergent fiber (iADF) in diets with inclusion of passion fruit by-product for dairy heifers on the estimation of fecal output and nutrient digestibility. Sixteen Holstein × Zebu crossbred heifers at an average live weight of 363 ± 28 kg were randomly d
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Stadnik, Mykola, Serhiy Burlaka, and Pavlo Luts. "EXPERIMENTAL STUDY OF WATER AND NUTRIENT BALANCE INTERACTIONS IN CLOSED HYDROPONIC SYSTEMS." Vibrations in engineering and technology, no. 4(115) (December 24, 2024): 15–23. https://doi.org/10.37128/2306-8744-2024-4-2.

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This article presents a study aimed at modeling the interactions of water and nutrient balances in hydroponic systems, which are increasingly recognized as an environmentally sustainable and highly efficient method for growing plants without soil. Hydroponic systems provide optimal nutrient delivery to plants through a water solution maintained in a closed cycle, reducing water and fertilizer usage compared to traditional agriculture. However, the effectiveness of such systems largely depends on precise regulation of water and nutrient balances to ensure proper plant growth and optimize resour
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Reddy Anthay, Swetha, Arun Chokkalingam, Komathi B. Jeyashanker, and Bharathiraja Natarajan. "An analysis on micronutrient deficiency in plant leaf and soil using digital image processing." Indonesian Journal of Electrical Engineering and Computer Science 26, no. 1 (2022): 568. http://dx.doi.org/10.11591/ijeecs.v26.i1.pp568-575.

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The plant <span>requires thirteen different nutrients. The two main types of nutrients are micronutrients and macronutrients. Diseases develop due to deficiency of vital nutrients, resulting in colored spots on the leaves. Plant development is affected by toxicity or lack of one or more of these nutrients, resulting in plant death. As a result, a continuous monitoring system is necessary to know the nutritional status of the plants to enhance production efficiency and output. Optical image recognition-based medical technology can identify indicators of inaccuracy faster than the human ey
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Anthay, Swetha Reddy, Arun Chokkalingam, Komathi B. Jeyashanker, and Bharathiraja Natarajan. "An analysis on micronutrient deficiency in plant leaf and soil using digital image processing." Indonesian Journal of Electrical Engineering and Computer Science 26, no. 1 (2022): 568–75. https://doi.org/10.11591/ijeecs.v26.i1.pp568-575.

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The plant requires thirteen different nutrients. The two main types of nutrients are micronutrients and macronutrients. Diseases develop due to deficiency of vital nutrients, resulting in colored spots on the leaves. Plant development is affected by toxicity or lack of one or more of these nutrients, resulting in plant death. As a result, a continuous monitoring system is necessary to know the nutritional status of the plants to enhance production efficiency and output. Optical image recognition-based medical technology can identify indicators of inaccuracy faster than the human eye. Consequen
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