scholarly journals Recommender System for Nutrient Management Based on Precision Agriculture

2019 ◽  
Vol 8 (4) ◽  
pp. 227-235
Keyword(s):  
Experimental Study ◽  
Recommender System ◽  
Precision Agriculture ◽  
Initial Phase ◽  
Nutrient Management ◽  
Growth Parameters ◽  
Research Work ◽  
The Impact ◽  
Collection Phase ◽  
Major Domain

Agriculture is the heart of our nation and society. It is influenced by several factors and parameters such as uneven monsoon, changing climate as well as weather circumstances, rainfall and nutrient facts during the harvest. Agriculture is primarily crucial and also the main source of our livelihood. But, owed to the scarceness of nutrients in plants, the human is strained to handle many dare in everyday life. The restoration of the nutrient is essential, in this view there is need to adopt precision agriculture system which change crop related plans and regulations, whereas nutrient management is a major domain that is needed to be spotlight in the field of farming techniques. The main aim of this research is to create an idea of developing a precision based recommender system for nutrient management and the main scope of this paper to describe the initial phase of the research. The experimental study of this research work is conducted using a terrace garden. The nutrient management with respect to the horticulture crop tomato is considered as the objective. The samples are grouped as two sets namely A and B representing samples without using natural fertilizers/manures and with natural fertilizers/manures. The growth parameters are analyzed and the results are presented. The data collection phase using sensors and Arduino kit is described here. The impact of pests and the remedy taken during the period of growth is recorded. The advices from the experts given in the soil tests are considered for preparing this nutrient management system.

scholarly journals Research Progress and Perspective on Drought Stress in Legumes: A Review

2019 ◽  
Vol 20 (10) ◽  
pp. 2541 ◽  
Author(s):  
Muhammad Nadeem ◽  
Jiajia Li ◽  
Muhammad Yahya ◽  
Alam Sher ◽  
Chuanxi Ma ◽  
...  
Keyword(s):  
Water Stress ◽  
Drought Stress ◽  
Nutrient Uptake ◽  
Nutrient Management ◽  
Growth Parameters ◽  
Photosynthetic Apparatus ◽  
Net Photosynthesis ◽  
Research Progress ◽  
Drought Tolerant ◽  
The Impact

Climate change, food shortage, water scarcity, and population growth are some of the threatening challenges being faced in today’s world. Drought stress (DS) poses a constant challenge for agricultural crops and has been considered a severe constraint for global agricultural productivity; its intensity and severity are predicted to increase in the near future. Legumes demonstrate high sensitivity to DS, especially at vegetative and reproductive stages. They are mostly grown in the dry areas and are moderately drought tolerant, but severe DS leads to remarkable production losses. The most prominent effects of DS are reduced germination, stunted growth, serious damage to the photosynthetic apparatus, decrease in net photosynthesis, and a reduction in nutrient uptake. To curb the catastrophic effect of DS in legumes, it is imperative to understand its effects, mechanisms, and the agronomic and genetic basis of drought for sustainable management. This review highlights the impact of DS on legumes, mechanisms, and proposes appropriate management approaches to alleviate the severity of water stress. In our discussion, we outline the influence of water stress on physiological aspects (such as germination, photosynthesis, water and nutrient uptake), growth parameters and yield. Additionally, mechanisms, various management strategies, for instance, agronomic practices (planting time and geometry, nutrient management), plant growth-promoting Rhizobacteria and arbuscular mycorrhizal fungal inoculation, quantitative trait loci (QTLs), functional genomics and advanced strategies (CRISPR-Cas9) are also critically discussed. We propose that the integration of several approaches such as agronomic and biotechnological strategies as well as advanced genome editing tools is needed to develop drought-tolerant legume cultivars.

scholarly journals Impact of dye effluent on growth and chlorophyll content of Alfalfa (Medicago sativa l.)

2016 ◽  
Vol 5 (10) ◽  
pp. 1432
Author(s):  
Pratibha Mahawar* ◽  
Azra Akhtar
Keyword(s):  
Medicago Sativa ◽  
Seedling Growth ◽  
Root Length ◽  
Growth Parameters ◽  
Research Work ◽  
Life Time ◽  
Shoot Length ◽  
Chlorophyll Contents ◽  
Root And Shoot Length ◽  
The Impact

The textile industry plays an important role in the world economy as well as in our daily life time, it consumes large quantity of water and generates huge amount of waste water. The chemical reagents used in the textile sector are diverse in chemical composition ranging from inorganic to organic molecules. The presence of these chemicals will show detrimental effects on the germination process and growth of seedlings. Present research work has been carried out to study the impact of effluent at different concentrations (20%, 40%, 60%, 80%, 100%) on seed germination and seedling growth of Medicago sativa. On the 14th day of seedling growth, maximum root and shoot length were observed at 20% concentration of effluent i.e. 5.4cm (root length) and 5.1cm (shoot length) which increased 3.8% and 4.0% respectively in comparison to control. At high concentrations of treatment levels root length was decreased 2.04%, 19.2%, 26.5%, 51.0% respectively and shoot length was decreased 3.84%, 17.3%, 26.9%, 44.2% respectively at 40%, 60%, 80% and 100% treatment levels in comparison to control (4.9cm and 5.2cm respectively). Same trend was observed during estimation of dry weight and chlorophyll contents.  Inhibition of seedling germination and seedling growth at higher concentrations of effluent may be due to high level of dissolved solids which inhance the salinity. The present study concluded that the dyeing effluent waste significantly influence growth parameters of Medicago sativa.

Recommendations for Recycling, Processing and Reuse of Concrete

2007 ◽  
Author(s):  
Rouba El Dalati ◽  
Pierre Matar ◽  
Emile Youssef ◽  
Sylvie Yotte ◽  
Farah Homsi ◽  
...  
Keyword(s):  
Experimental Study ◽  
A Priori ◽  
Research Work ◽  
Recycled Aggregates ◽  
Cement Ratio ◽  
Recycle Concrete ◽  
Different Types ◽  
Concrete Materials ◽  
The Cost ◽  
The Impact

Some countries started to recycle concrete materials for reuse in structural or other issues. Some of them, like Germany, Australia and Canada have established their own recommendation guide for recycling concrete [1,2]. The recycling consists of crushing old concrete into aggregates, and then processing it into new mixture using recycled aggregates with specified sizes [3,4]. The aim of this recycling is to save nature from deforestation and dryness, by reducing the need to gravel and so the quarries work, and also to economize the waste management [5,6]. The present research work consists of an experimental study assessing the impact of using recycled aggregates on the concrete behavior and on the country’s economy. We are especially interested in determining the best composition for the new mixture of concrete resulting from reusing different types of recycled aggregates. Different types of tests have been done depending on the aggregates sizes, their origin and their state (burned or safe). The analysis is based on the comparison between compressive strength, water-cement ratio, slump, porosity and durability. Otherwise, the impact on economy is analyzed, a priori, by studying the effect of reducing the cost of the resulting concrete on construction spending. The resulted recommendations indicate the sizes of aggregates which may constitute the best composition for recycling and processing concrete, and the best use for each type of concrete depending on behavior and economy effect.

Comparative foliar studies in saline sand and fresh water soil - grown Trigonella foenum - graecum Linn. plants

2017 ◽  
Vol 6 (03) ◽  
pp. 5304
Author(s):  
Madhu Kanta Kapoor* ◽  
Sasikumar S.
Keyword(s):  
Fresh Water ◽  
Growth Parameters ◽  
Research Work ◽  
Sandy Beaches ◽  
Trigonella Foenum Graecum ◽  
Biochemical Analyses ◽  
Growing Conditions ◽  
Two Stages ◽  
Trigonella Foenum Graecum L ◽  
The Impact

Vegetable markets in Mumbai sell “methi” at two stages of growth, the full grown vegetative to flowering stage and another at two cotyledonary-leaves stage. The latter are commonly grown in the sandy beaches of Mumbai whereas the former are the regular soil-grown ones. The beach grown Trigonella foenum-graecum L. plants are watered with saline beach- well waters whereas the soil-grown ones are watered with regular fresh water. The research work focused on studying the impact of this difference in growing conditions on many growth parameters, viz., morphology, anatomy and biochemical analyses of the sand and soil-grown plants in addition to sand, soil and water analyses. Current paper deals with the impact of these different growing conditions on some foliar parameters viz., anatomy, stomatal index, palisade ratio and venation patterns, in the two types of Trigonella foenum-graecum L. plants.

Effect of integrated nutrient management on yield parameters of Broccoli (Brassica oleracea L. var. italica) cv. Pusa KTS-1

2018 ◽  
Vol 3 (02) ◽  
pp. 223-226
Author(s):  
Krishan Choudhary ◽  
Pavitra Dev1 ◽  
Jitendra Kumar ◽  
Vinuj Kumar ◽  
Tarun Kumar
Keyword(s):  
Brassica Oleracea ◽  
Management Practices ◽  
Nutrient Management ◽  
Growth Parameters ◽  
Block Design ◽  
Integrated Nutrient Management ◽  
Combined Application ◽  
Randomized Block Design ◽  
The Impact ◽  
Brassica Oleracea L

A field experiment was conducted during 2017-18 to examine the impact of integrated nutrient management on growth parameters of broccoli (Brassica oleracea L. var. italica) cv. Pusa KTS-1. The experiment comprised of twelve treatments consisting of different combinations of organic and inorganic fertilizers. The experimental field was laid out in randomized block design (RBD) with three replications. All variable parameters regarding yield behaviour were significantly influenced by integrated nutrient management practices. Results indicated that combined application of 80% NPK + 2 t/ha vermicompost gave the significant effect on yield attributing parameters viz., head diameter (21.33 cm), number of spear per plant (13.00), head weight (332.33 gm) and yield (162.84 q/ha) as compared to other treatments.

Experimental study of thermohydraulic characteristics and irreversibility analysis of novel axial corrugated tube with spring tape inserts

2020 ◽  
Vol 92 (3) ◽  
pp. 30901
Author(s):  
Suvanjan Bhattacharyya ◽  
Debraj Sarkar ◽  
Ulavathi Shettar Mahabaleshwar ◽  
Manoj K. Soni ◽  
M. Mohanraj
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Thermal Performance ◽  
Working Fluid ◽  
The Novel ◽  
Heat Exchanger Tube ◽  
Heat Transfer Augmentation ◽  
Corrugated Tube ◽  
The Impact ◽  
Exchanger Tube

The current study experimentally investigates the heat transfer augmentation on the novel axial corrugated heat exchanger tube in which the spring tape is introduced. Air (Pr = 0.707) is used as a working fluid. In order to augment the thermohydraulic performance, a corrugated tube with inserts is offered. The experimental study is further extended by varying the important parameters like spring ratio (y = 1.5, 2.0, 2.5) and Reynolds number (Re = 10 000–52 000). The angular pitch between the two neighboring corrugations and the angle of the corrugation is kept constant through the experiments at β = 1200 and α = 600 respectively, while two different corrugations heights (h) are analyzed. While increasing the corrugation height and decreasing the spring ratio, the impact of the swirling effect improves the thermal performance of the system. The maximum thermal performance is obtained when the corrugation height is h = 0.2 and spring ratio y = 1.5. Eventually, correlations for predicting friction factor (f) and Nusselt number (Nu) are developed.

Piezoelectric β-polymorph formation of new textiles by surface modification with coating process based on interfacial interaction on the conformational variation of poly (vinylidene fluoride) (PVDF) chains

2020 ◽  
Vol 91 (3) ◽  
pp. 31301
Author(s):  
Nabil Chakhchaoui ◽  
Rida Farhan ◽  
Meriem Boutaldat ◽  
Marwane Rouway ◽  
Adil Eddiai ◽  
...  
Keyword(s):  
High Efficiency ◽  
Vinylidene Fluoride ◽  
Research Work ◽  
Research Area ◽  
Interfacial Interaction ◽  
Tetraethyl Orthosilicate ◽  
Poly Vinylidene Fluoride ◽  
Carbon Nanofillers ◽  
The Impact ◽  
Advanced Applications

Novel textiles have received a lot of attention from researchers in the last decade due to some of their unique features. The introduction of intelligent materials into textile structures offers an opportunity to develop multifunctional textiles, such as sensing, reacting, conducting electricity and performing energy conversion operations. In this research work nanocomposite-based highly piezoelectric and electroactive β-phase new textile has been developed using the pad-dry-cure method. The deposition of poly (vinylidene fluoride) (PVDF) − carbon nanofillers (CNF) − tetraethyl orthosilicate (TEOS), Si(OCH2CH3)4 was acquired on a treated textile substrate using coating technique followed by evaporation to transform the passive (non-functional) textile into a dynamic textile with an enhanced piezoelectric β-phase. The aim of the study is the investigation of the impact the coating of textile via piezoelectric nanocomposites based PVDF-CNF (by optimizing piezoelectric crystalline phase). The chemical composition of CT/PVDF-CNC-TEOS textile was detected by qualitative elemental analysis (SEM/EDX). The added of 0.5% of CNF during the process provides material textiles with a piezoelectric β-phase of up to 50% has been measured by FTIR experiments. These results indicated that CNF has high efficiency in transforming the phase α introduced in the unloaded PVDF, to the β-phase in the case of nanocomposites. Consequently, this fabricated new textile exhibits glorious piezoelectric β-phase even with relatively low coating content of PVDF-CNF-TEOS. The study demonstrates that the pad-dry-cure method can potentially be used for the development of piezoelectric nanocomposite-coated wearable new textiles for sensors and energy harvesting applications. We believe that our study may inspire the research area for future advanced applications.

Microstructural and Mechanical Behaviour Evaluation of Mg-Al-Zn Alloy Friction Stir Welded Joint

2020 ◽  
Vol 17 (3) ◽  
pp. 8150-8159
Author(s):  
Kulwant Singh ◽  
Gurbhinder Singh ◽  
Harmeet Singh
Keyword(s):  
Heat Treatment ◽  
Friction Stir Welding ◽  
Magnesium Alloys ◽  
Mechanical Performance ◽  
Fuel Efficiency ◽  
Research Work ◽  
Grain Structure ◽  
Tensile Fracture ◽  
Friction Stir ◽  
The Impact

The weight reduction concept is most effective to reduce the emissions of greenhouse gases from vehicles, which also improves fuel efficiency. Amongst lightweight materials, magnesium alloys are attractive to the automotive sector as a structural material. Welding feasibility of magnesium alloys acts as an influential role in its usage for lightweight prospects. Friction stir welding (FSW) is an appropriate technique as compared to other welding techniques to join magnesium alloys. Field of friction stir welding is emerging in the current scenario. The friction stir welding technique has been selected to weld AZ91 magnesium alloys in the current research work. The microstructure and mechanical characteristics of the produced FSW butt joints have been investigated. Further, the influence of post welding heat treatment (at 260 °C for 1 h) on these properties has also been examined. Post welding heat treatment (PWHT) resulted in the improvement of the grain structure of weld zones which affected the mechanical performance of the joints. After heat treatment, the tensile strength and elongation of the joint increased by 12.6 % and 31.9 % respectively. It is proven that after PWHT, the microhardness of the stir zone reduced and a comparatively smoothened microhardness profile of the FSW joint obtained. No considerable variation in the location of the tensile fracture was witnessed after PWHT. The results show that the impact toughness of the weld joints further decreases after post welding heat treatment.

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