On 15^th December 2020, VISCA Final Conference was held virtually to present the results of the project and the way forward. The conference attracted around 60 participants with a variety of profiles: viticulturists, wine producers, scientists, agricultural communities, software providers, entrepreneurs, media, among others who connected to the e-conference from 10 countries: Belgium, France, Greece, Italy, Israel, Netherlands, Portugal, Spain, Tunisia and the UK.

The e-conference started with a welcoming statement from the project coordinator (METEOSIM) by Josep Sole Maria and the CEO of METEOSIM Oriol de Tera who opened the floor to the two guest speakers from the European Commission: Sasa Zavadlav (VISCA project Officer) and Marjan Van Meerloo, Directorate General for Research & Innovation. They both presented 'R&I contribution to the Green Deal objectives: Climate Action'.

After that, a session on VISCA presentation and results was organized. A short presentation of VISCA was made by the project Coordinator Josep Maria Solé. Then, Claudio Rossi from LINKS  Foundation made a short live demo of the VISCA Decision Support System (DSS) & its added value. The DSS is a Progressive Web Application which integrates climate and agricultural models with farmers’ management specifications to design short practices, medium- and long-term adaptation strategies to climate change. The live demo showed the integrated dashboard of the DSS with its 3 main widgets (phenology, sugar accumulation, irrigation and weather forecasts) as well as the features in relation to the map-based visualization. Later, the key results of the validation of the DSS and the climate services as well as the outcomes from the agronomic techniques: crop forcing and shoot trimming were illustrated by Omar Garcia from IRTA. VISCA solutions were demonstrated in 3 sites in Italy, Portugal and Spain . An interactive round table with end-users representing Codorniu (Xavier Bordes), Symington (Fernando Alves) and Mastroberardino (Antonio Dente) was part of this session where they shared their feedback from the implementation of VISCA solutions.

VISCA DSS is integrating climate and agricultural models with farmers’ management specifications in order to design short practices, medium- and long-term adaptation strategies to climate change.

The irrigation widget included in VISCA DSS provides recommendations for weekly irrigation needs based on plant and end-user requirements. This component of the tool has supported the irrigation management across the demonstration sites in Italy, Portugal and Spain. The irrigation model takes into account the plant physiological characteristics, the end-users’ necessities, and the irrigation and weather data during the growing season, to provide accurate irrigation volume forecasts for the next week. The model uses the midterm (weekly) weather predictions which is also included in VISCA DSS.

Figure1. Example of irrigation applied by the end user (purple line and bars) and predicted by the DSS (green line and bars) on an irrigation block at CODORNIU (Spain)

The irrigation widget in VISCA DSS allows the end-users to have an easy access to the irrigation data. The irrigation widget is divided into three panels (Figure 1). The left hand panel has an interactive map which shows the irrigation block selected in the parcel. The central panel presents the accumulated irrigation predicted (green line) and applied by the end user (purple line) and the right hand panel presents the weekly irrigation applied (purple bar) and forecasted by the VISCA irrigation model (green line).

What would happened if this forecast is not available (Business as Usual scenario)?

VISCA DSS is integrating climate and agricultural models with farmers’ management specifications in order to design short practices, medium- and long-term adaptation strategies to climate change.

In the Irpinia Valley, located in south of Italy (about 60 km from Naples), a very warm winter influenced the precocity of the budbreak that occurred one week earlier than average. Also, blooming advanced earlier followed by a rainy month of June with some problems of downy mildew. However, with the predictions supplied by VISCA DSS, the Mastroberardino viticulture team was able to contain the disease by increasing the number of treatments sprays, anticipating the action as the prediction of several days of rainfall was given.

VISCA DSS showing that bud break and blooming have been achieved and earlier than normal (July 2020)

Blooming observed in the field - Italian Demo Site (July 2020)

This summer, VISCA DSS, in particular the short-term and mid-term climate forecasts, has predicted lower precipitation than normal and higher temperature than normal in Mirabella Eclano estate in the Campania region, where our Italian demonstration site is located. Before the phenological phase of blooming, the DSS, through the seasonal forecast, predicted a dry and hotter summer than normal, followed by the months of September and October with the same trend. Aglianico is the grapevine under the VISCA experimental plot and it is extremely sensible to powdery mildew disease. The dry season usually influences the development of the fungus directly on the grapes. Therefore, such useful predictions allowed the Mastroberardino vinegrowers to take decisions about the canopy and vineyards management in advance. First of all they programmed:

VISCA DSS is integrating climate and agricultural models with farmers’ management specifications in order to design short practices, medium- and long-term adaptation strategies to climate change.

In the Douro Valley, where our Portuguese demonstration site is located, the combination of abundant rainfall in March and April of 2020 and a very warm winter influenced the precocity of this year’s growth cycle, with budbreak recorded three weeks earlier than average. These conditions caused recurrent and earlier than expected outbreaks of downy mildew. However, with the predictions supplied by VISCA, the Symington viticulture team was able to plan a very effective treatment schedule, which successfully contained the disease.

Flowering also advanced earlier, arriving two weeks ahead of the regional average, and in order to safeguard good fruit set and ensure a healthy crop, the team at Symington continues to rely on timely VISCA predictions to plan ahead and keep disease pressures at bay.

DSS showing that budbreak has been achieved (May 2020)

Pictures of Ataíde vineyard of first week of May 2020 showing the phenological stage of bloom

During April, VISCA DSS predicted higher rainfall than normal in Douro. This increase of precipitation would risk the spread of grape diseases causing some loss of crops. To avoid this loss, the Viticulturists of Symington have decided to make 4 treatments sprays instead of 3 with an earlier positioning than usual in the calendar, to block the downy mildew cycle.

VISCA project has been developing a Decision Support System (DSS) that integrates climate and agricultural models with farmers’ management specifications in order to design short practices, medium- and long-term adaptation strategies to climate change. After more than three years since the launch of our project, we are publishing the ‘VISCA Booklet on Preliminary Results’. The booklet gives an overview of the project, a description of the DSS and the integrated climate services, the added value of these services with testimonies from the end-users as well as the preliminary results driven from the demonstration sites in Italy, Portugal and Spain. The booklet also presents an overview of the replicability and the way forward (exploitation). You may download VISCA Booklet here.

VISCA project has published recently 3 new public deliverables related to the analysis of climate projections at the European scale and particularly at the demosites of the project, report on a full year application of the CS-DSS and VISCA booklet presenting preliminary results.

You may download them below:

• VISCA_Deliverable 2.5: Decadal projection performance report
• VISCA_Deliverable 4.8: Second preliminary report between research teams (WP2), DSS developers and end-users on a full year application of the CS-DSS
• VISCA_Deliverable 5.5: Booklet on VISCA results (Draft)