1,721,034 research outputs found
Mapping and sharing agro-biodiversity using Open Data Kit and Google Fusion Tables
No full textThe interest in using informatics tools for collecting information on agro-biodiversity is increasing, since they greatly facilitate the collection and sharing of data. Anyway, in some cases, the use of such tools is not of immediate comprehension for a common user because of several reasons (for example, the use of APIs), so an effort should be done to simplify these tools and allow greater participation for general public. In this optic, we tested two tools freely available, namely Open Data Kit and Google Fusion Tables, to verify if their integrated use would allow a participative collection (and sharing) of data related to agro-biodiversity. We use Open Data Kit to collect information regarding several vegetable crops at risk of genetic erosion (including multimedia and GPS data) that were stored into the Google App Engine platform. Such information were afterwards transferred into Google Fusion Tables for mapping them and share with a general public. Both tools were tested in real scenarios in the Italian region of Puglia and the results seems to be encouraging: Open Data Kit has provided a good platform for the collection of data and it is reliable for georeferencing the fields, while Google Fusion Tables allowed us to show the data and share them in an easy way
La concentrazione delle asportazioni come criterio per il controllo della nutrizione minerale in ciclo chiuso: applicazione su pomodoro ‘Naomi’
No full textTomato plants (cv. Naomi) were grown until the 7th cluster in a greenhouse during the period
Feb.–Jun. 1999 using a closed sub-irrigated soilless system. Plants were raised in pots (10 L) filled
with peat and pumice (1:2 v:v) substrate. Thirty-one days after transplanting three nutrient
solutions (NS) with electrical conductivity (ECs) of 2, 4, and 6 dS/m were applied to the plants. The
EC of nutrient solutions were achieved by preparing NS from rain water (low EC) or from well
water (high EC). Intermediate EC was obtained by mixing equal parts of the 2 and 6 dS/m NS. By
increasing ECs the mean weight of fruit decreased, while dry matter, titratable acidity, soluble
solids, and ascorbic acid contents of fruits increased. Also the color of fruits was positively
influenced by the ECs. The index of colour (a*/b*)2, that is positively correlated with the lycopene
content, increased by 73 % when increasing ECs from 2 to 4-6 dS/m
Influenza della fonte di salinità su produzione, qualità e impatto ambientale del pomodoro allevato in ciclo chiuso
No full textInfluence of salinity source on production, quality and environmental impact of tomato grown in a soilless closed system
No full textIn order to obtain high quality cherry tomato in closed soilless systems, the nutrient solutions must have a high electric conductivity (EC), so are often
enriched with NaCl or their concentrations are increased by adding greater quantities of some major elements (nitrogen, phosphorus, potassium, etc.).
The purpose of this research was to compare two different ways of increasing the initial EC of the nutrient solution for greenhouse tomato growing
in a nutrient film technique (NFT). The initial EC of the nutrient solution was increased by doubling the concentrations of the macro-elements or
adding NaCl, in order to maintain the EC above 3.5 dS m-1. The studied effects were: i) production and quality of the fruits; ii) water use efficiency
and element use efficiency; and iii) environmental impact of the cultivation system. Doubling the concentrations of the macro-elements (N, P and K)
the total production and the discarded fruits were increased by 8 and 52%, respectively. The addition of NaCl increased by 6% the percentage of fruits
with a diameter between 25 and 35 mm, class most appreciated by the consumers. The principal parameters of the organoleptic quality (total soluble
solids, ascorbic acid, titratable acidity and dry matter content) were not influenced by the source of the salinity. The quantity of water used was
similar in the two experimental treatments (3400 m3 ha-1, in average). However, the addition of NaCl allowed a meaningful reduction in the quantities
of nutrients utilised, with inclusive savings of 11% (for S) and 20% (for P), without any meaningful decrease in marketable yield
Social media e agrobiodiversità.
No full textIn the latest years the Social Media (or
more generally the Web 2.0 tools) have become
increasingly important in several aspects of everyday
life and, thanks to their pervasiveness, they are used
in various areas, including the scientific and academic
ones. The importance of such tools have been underlined
by several authors. The Social Media, in fact,
are used in different activities: academic courses,
spreading the results of research projects, informing
citizens about initiatives, extracting data from the
User Generated Content for particular purpose like,
e.g., identify the places of greatest spread of certain
diseases, etc. In the context of the our research
projects about agrobiodiversity, we are using several
Social Media services to disseminate our work and to
inform the public. Anyway, the term Social Media
points out to all the online technologies and practices
used to share content, text, images, video and audio,
referring to a plethora of tools. In our case, we refer to
Wikipedia, Facebook, Twitter and Google Fusion
Tables. In this paper, we introduce such tools and
discuss the advantages and the opportunities they
offer to the academic/scientific community. For
Wikipedia, after an introduction about its advantages/
disadvantages, we report how such platform is
actually used for academic/scientific purposes, and
later we show: i) how it can be used to write/edit
entries about species at risk of genetic erosion; ii) in
which manner such platform can improve the visits
toward a website (referral effect) and iii) how it is possible
to create online and printed books (Wikibooks)
starting from the entries of Wikipedia platform. For
Facebook and Twitter, first we argue about such tools
can be used in spreading information about agrobiodiversity,
and later we discuss how we are using them
and which are the parameters that can provide interesting
information in order to see if the communication
is done effectively. Finally, we furnish some indications
about Google Fusion Tables, an innovative
cloud-based tool from Google that allow to create and manage big data online, which does not appear as a
traditional database, as it focuses on the sharing and
collaboration providing innovative ways to display
data on a map. At last, we illustrate how we are using
them in order to give greater emphasis to the information
and communication about the results of our
projects, since the importance of Social Media has
recent ly been under l ined by the European
Commissioner for Research, Innovation and Science,
Máire Geoghegan-Quinn
Editorial: Edible halophytes for a sustainable agriculture: from neglected species to new crops
No full textEditorial on the Research Topic
Edible halophytes for a sustainable agriculture: from neglected species
to new crop
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