scholarly journals Improving the Productivity through Site-Specific Nutrient Management in Cashew through a Mobile App in Coastal India

2020 ◽  
pp. 73-88
Author(s):  
Shamsudheen Mangalassery ◽  
Palpandian Preethi ◽  
Bommanahalli Munivenkate Muralidhara ◽  
Mundakochi Gangadhara Nayak
Keyword(s):  
Nutrient Management ◽  
Mobile Apps ◽  
Nutrient Balance ◽  
Nutrient Status ◽  
Mobile App ◽  
Limited Attention ◽  
Land Resources ◽  
Site Specific ◽  
Tropical Regions ◽  
The Right

Nutrient management plays a key role in the productivity and sustainability of land resources. Balanced application of mineral nutrition to the crops not only helps to realise increased yields but also to prevent land degradation. Cashew is generally grown as a rainfed crop in tropical regions with limited attention on nutrient management. Making an informed decision on the scientific aspects of the nutrient application in terms of the right amount, time and place of application are important for the growers. The mobile apps come handy in this direction because the farmers can themselves find out nutrient management schedule as per the field conditions. A mobile app for nutrient management in cashew was developed which takes care of varied field situations of farmers and was demonstrated in the farmer’s fields under participatory research mode. The app helped farmers to devise their own site-specific nutrient management. The field implementation for the site-specific nutrient management with the help of a mobile app showed improvement in soil and leaf nutrient status as well as the raw cashewnut yield. The yield improvement was in the range of 58 to 67% and the BC ratio was increased by 9 to 47% compared to the initial status. The mobile app DCR-Cashew Nutrient Manager was useful to empower the farmers, and field implementation was beneficial to improve the productivity, income and ecosystem sustainability by improving the nutrient balance in the soil.

scholarly journals Site-specific Nutrient Management for Enhancing Crop Productivity

2020 ◽  
pp. 17-25
Author(s):  
Ramesh Chand Bana ◽  
S. S. Yadav ◽  
A. C. Shivran ◽  
Prabhoo Singh ◽  
Vinod Kumar Kudi
Keyword(s):  
Nutrient Management ◽  
Supply And Demand ◽  
Nutrient Use Efficiency ◽  
Simulation Models ◽  
Nutrient Status ◽  
Crop Productivity ◽  
High Price ◽  
Nitrification Inhibitors ◽  
Management Tools ◽  
Site Specific

Nutrient management plays a crucial role in achieving self-sufficiency in food grain production. High price index of chemical fertilizers coupled with mount pollution problem gave rise to interest in precision nutrient management tools. Site specific nutrient management (SSNM) increases and maintains the yield by optimizing the balance between supply and demand of nutrients. Nutrient application as per SSNM concept resulted in significantly higher grain yields of maize, rice, wheat and other important crop over recommended dose of fertilizers (RDF) and farmer’s fertilizers practices. The SSNM is real time feeding of crops with nutrients while recognizing the inherent spatial variability which enhances crop productivity, nutrient use efficiency (NUE) and avoids nutrient wastage. For effective SSNM, utilization of different sensing devices of soil and plant nutrient status, decision support systems, GIS, remote sensing, simulation models and nenoparticles play an important role. Traditional techniques like balanced fertilization, use of nitrification inhibitors and slow-release nitrogenous fertilizers (SRNF) are also used to attain higher productivity and reduce environmental pollution. This paper deals with the SSNM approaches which are able to enhance crop productivity, NUE and sustainability.

Site Specific nutrient management through targeted yield equations formulated for green gram (Vigna radiata L. Wilczek)

2017 ◽  
Author(s):  
Subhashis Saren ◽  
Antaryami Mishra ◽  
Pradip Dey
Keyword(s):  
Vigna Radiata ◽  
Nutrient Management ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Green Gram ◽  
Fertilizer Efficiency ◽  
Multiple Regression Equation ◽  
Yield Data ◽  
Site Specific ◽  
Fertility Gradient

A field experiment was conducted to formulate the fertilizer prescription equations for achieving desired yield target of green gram (Vigna radiata L. Wilczek) during 2013-14. Three fertility gradient stripes were created by applying no fertilizer, recommended dose of fertilizer (RDF) and double of the RDF in rice in order to develop three fertility gradient stripes during kharif. Each strip was again sub-divided into 24 sub plots and green gram was cultivated with different treatment combinations. One plot was kept as absolute control while FYM was applied in two sub-plots and rest 21 plots were applied with different graded doses of fertilizers. Initial and post harvest soil nutrient status, nutrient uptake, nutrient requirement, soil efficiency, fertilizer efficiency and yield data were recorded. The highest yield (12.15 q ha-1) was achieved with application of 30:50:50 (N: P2O5: K2O). Fertilizer prescription equations were formulated by multiple regression equation for site specific nutrient management on the basis of initial soil fertility status and targeted yield approach. The equations and ready reckoner were developed for higher production with optimum use of fertilizers according to desired yield target of green gram with sustainable manner.

Understanding Mobile Apps as Platform-Based Services in Multisided Markets

2020 ◽  
pp. 424-438
Author(s):  
Per Egil Pedersen ◽  
Herbjørn Nysveen
Keyword(s):  
Mobile Apps ◽  
Mobile App ◽  
Limited Attention ◽  
Innovation Research ◽  
Over Time ◽  
Oriented Research

This chapter discusses recent research on mobile app markets with particular focus on their multisidedness. It briefly introduces three perspectives in the platform literature and presents results from a review of 114 articles on mobile app markets. The authors find that multisidedness is given limited attention in user- and developer-oriented research and more attention in platform-oriented research and that the streams of research are disparate and heterogeneous. They present a four-dimensional framework where mobile app markets are considered ecosystems with numerous actor categories. New practices are enabled through the underlying services provided by the ecosystem of the app. The functionality of the apps’ services evolves over time as actors innovate their behaviors. Finally, what is adopted and diffused is not predefined by app providers but co-created by the ecosystem of the app. Implications for future mobile app markets research are suggested along with implications for general innovation research.

Mapping spatial variability of leaf nutrient status of oil palm (Elaeis guineensis Jacq.) plantations in India

2016 ◽  
Vol 67 (1) ◽  
pp. 109 ◽  
Author(s):  
S. K. Behera ◽  
K. Suresh ◽  
K. Ramachandrudu ◽  
K. Manorama ◽  
B. N. Rao
Keyword(s):  
Spatial Variability ◽  
Oil Palm ◽  
Nutrient Management ◽  
Elaeis Guineensis ◽  
Management Strategies ◽  
Nutrient Status ◽  
Nutrient Concentrations ◽  
Site Specific ◽  
Leaf Nutrients ◽  
Elaeis Guineensis Jacq

Spatial variability of leaf nutrients in oil palm (Elaeis guineensis Jacq.) plantations in Goa, Karnataka, Mizoram and Gujarat states of India were examined for implementation of site-specific fertilisation programs. Georeferenced leaf samples were collected randomly for the oil palm plantations. The leaf nutrient concentrations were assessed and analysed statistically and geostatistically. The concentrations of leaf nutrients such as nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S) and boron (B) in oil palm plantations varied widely at different locations. Leaf P concentration was positively and significantly correlated with S concentration at Goa, Karnataka and Gujarat. Positive and significant correlation between leaf Ca and Mg concentration was recorded at Mizoram and Gujarat. Geostatistical analysis of leaf nutrients showed different distribution patterns at different locations. This study revealed the need to determine spatial variability of nutrient status of oil palm plantations before planning a differential fertiliser program. Therefore, saving of nutrients could be achieved by adopting site-specific nutrient-management strategies.

India Goes Digital..Smartphone is the New Shopping Destination

2018 ◽  
Vol 6 (8) ◽  
pp. 289
Author(s):  
Shankar Chaudhary
Keyword(s):  
Online Shopping ◽  
Mobile Apps ◽  
Smart Phone ◽  
Mobile Commerce ◽  
Mobile App ◽  
Smart Phones ◽  
The Internet ◽  
The World ◽  
Shopping Experience ◽  
User Friendly

Despite being in nascent stage m-commerce is gaining momentum in India. The explosive growth of smart-phone users has made India much loved business destination for whole world. Indian internet user is becoming the second largest in the world next to China surpassing US, which throws open plenty of e-commerce opportunities, not only for Indian players, offshore players as well. Mobile commerce is likely to overtake e-commerce in the next few years, spurred by the continued uptrend in online shopping and increasing use of mobile apps.The optimism comes from the fact that people accessing the Internet through their mobiles had jumped 33 per cent in 2014 to 173 million and is expected to grow 21 per cent year-on-year till 2019 to touch 457 million. e-Commerce brands are eyeing on the mobile app segment by developing user-friendly and secure mobile apps offering a risk-free and easy shopping experience to its users. Budget 4G smart phones coupled with affordable plans, can very well drive 4G growth in India.

INFLUENCE OF GREENHOUSE SHADING AND DIFFERENT NUTRIENT MANAGEMENT PRACTICES ON ALLEVIATING HEAT STRESS, IMPROVING PLANT NUTRIENTS STATUS, FLOWERING GROWTH AND YIELD OF TOMATO

2020 ◽  
Vol 51 (4) ◽  
pp. 1001-1014
Author(s):  
Sulaiman & Sadiq
Keyword(s):  
Heat Stress ◽  
Management Practices ◽  
Nutrient Management ◽  
Block Design ◽  
Nutrient Status ◽  
Growth And Yield ◽  
Reproductive Growth ◽  
Positive Effects ◽  
Nutrition Programs ◽  
The Impact

The experiment was conducted in a greenhouse during 2017 and 2018 growing seasons to evaluate the impact of the shading and various nutrition programs on mitigating heat stress, reducing the use of chemical minerals, improving the reproductive growth and yield of tomato plant. Split-plot within Randomized Complete Block Design (RCBD) with three replications was conducted in this study. Shading factor was allocated in the main plots and the nutrition programs distributed randomly in the subplots. Results indicate that shading resulted in the decrease of daytime temperature by 5.7˚C as an average for both seasons; thus a significant increasing was found in leaf contents of macro nutrients (Nitrogen, Phosphorous, and Potassium), and micro nutrients (Iron, Zinc and Boron), except the Iron content in 2018 growing season. Furthermore, shading improved significantly the reproductive growth and tomato yield. Among the plant nutrition programs, the integrated nutrient management (INM) including the application of organic substances, bio inoculum of AMF and 50% of the recommended dose of chemical fertilizers; lead to the enhancement of nutrients content, reproductive characteristics and plant yield. Generally, combination of both shading and INM showed positive effects on plants nutrient status and persisting balance on tomato flowering growth and fruits yield.

Stuttering mHealth Applications: A Qualitative Rubric Assessment (Preprint)

2020 ◽  
Author(s):  
Fazwa M. Fadzilah ◽  
Noreen Izza Arshad ◽  
Izuddin Zainal-Abidin ◽  
Hui Min Low ◽  
Ahmad Kamil Mahmood ◽  
...  
Keyword(s):  
Research Evidence ◽  
Mobile Apps ◽  
Group Discussion ◽  
Standard Form ◽  
Mobile App ◽  
Evidence Based ◽  
Evaluation Instrument ◽  
Collective Effort ◽  
Speech Therapists

BACKGROUND Mobile applications (apps) that offer a variety of techniques to improve stuttering have been flourishing in the digital marketplace. In evidence-based clinical practice, speech therapists will recommend audio-enriched mobile apps to individuals with stuttering problems based on empirical research evidence. Unfortunately, many stuttering mobile apps available in the market are developed without a substantial research base. Hence, speech therapists necessitate a guideline which they could use to assess the quality of a stuttering mobile app before recommending the app to stutterers. OBJECTIVE The objective of this study is to develop a rubric for assessing the quality of the stuttering mobile app in assisting speech therapists to make informed recommendations METHODS The rubric was initially developed based on a set of criteria reviewed from the literature. Online surveys and focused group discussion were then conducted for results verification. RESULTS The outcome of this study is a rubric designed with four categories and 18-evaluative dimensions tailored to analyze the quality of stuttering mobile apps. The stuttering mobile app assessment rubric presented in the serve multiple purposes, including an evaluation instrument, providing guidelines for developing stuttering mobile apps and for creating a standard form that can be shared with professionals to facilitate a collective effort. CONCLUSIONS This rubric also offers a guidance to steer drive the future development of stuttering mobile apps that are evidence-based, and theoretically grounded

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