Innovative, economically substantiated solutions to improve the efficiency of apple and raspberry production and fruit quality

Project leader: Pēteris Skrastiņš, Latvian Fruit-grower association

Project contact person of LatHort: Edgars Rubauskis

Project partners:

• Latvian Fruit-grower association (leading partner)
• Institute of Horticulture (LatHort)
• AgriHort
• Latvia University of Life Sciences and Technology, Faculty of Agriculture
• Latvian Rural Advisory and Training Centre
• and SMEs: ZS "Gaidas", SIA "Daigone", ZS "Pīlādži", SIA “Very Berry”, ZS "Eglāji", ZS "Ziediņi"

Objective of project: to develop economically substantiated innovative, environmentally friendly solutions for reducing the costs of apple and raspberry growing and harvesting, and improving the quality of fruit for fresh consumption and processing, by bringing together a broad range of fruit-growing experts and industry companies.

As a result of the implementation of the project, for the first time in Latvia, commercial enterprises will be offered technological solutions of mechanisation for apple trees and raspberry growing, reducing costs and increasing production productivity.

 For apple trees:

1. mechanised formation of canopy with a view to minimizing hand work;
2. mechanised thinning of flowers with a view to reducing labour costs and the biannual yielding;
3. introduction of an adapted irrigation/fertilisation system in a hilly area, with a view to promoting a smooth humidity supply in the orchard and without creating risks of soil erosion.

For raspberries:

1. mechanised harvesting of berries for primocane raspberry grown in Latvia with a view to reducing hand work and costs;
2. extended berry harvesting season using VOEN type coverings;
3. selected varieties suitable for rapid freezing.

The new technological solutions will help improve the quality of apples and raspberries for fresh consumption and processing. For these crops, an economically reasoned knowledge base will be developed for the sector's holdings on the specificities, risks and side effects of applying new technological solutions, increasing the competitiveness of the sector, ensuring demand for Latvian apples and raspberries in the outlook, as well as promoting their exports.

Results of project

Publications:

• Kalnina, I., Strautiņa, S. and Laugale, V. (2020). Evaluation of organic fertilizers for primocane raspberries in high tunnel. Acta Hortic. 1277, 271-276
• Strautiņa S., Laugale V., Kalniņa I., Krasnova I. (2022). Rudens avenes saldēšanai un desertam (Primocane raspberry for freezing and dessert) // Līdzsvarota lauksaimniecība: zinātniski praktiskās konferences raksti, Jelgava, Latvija, 24.-25.febr., 2022  – Jelgava, 118.-122.lpp.
• Rubauskis, E. and Borisova, I. (2022). Evaluation of dwarf rootstocks for high-density and sustainable orchards in Latvia. Acta Hortic. 1346, 691-698
• Rubauskis, E., Bundzena, G. and Borisova, I. (2022). Performance of apple orchard systems in the Nordic climate. Acta Hortic. 1346, 365-374
• Rubauskis E., Berlands V., Jansons V. 2022.Total evapotranspiration of apple trees with drip irrigation in high density orchard. Acta Hortic. 1335, 153-162
• Rubauskis E., Jansons V., Berlands V. 2022. Efficiency of irrigation and fertigation in a mature apple orchard: a Latvia experience. Acta Hortic. 1335, 507-514

Theses:

1. Laugale V., I. Kalniņa, I. Krasnova, Strautiņa S. 2023. VOEN segumu izmantošana rudens avenēm. Līdzsvarota lauksaimniecība. Zinātniski praktiskās konferences tēzes, Jelgava, 35. lpp.
2. Rubauskis E., I. Vircava, D. Udalovs, I. Borisova, A. Dorbe, G.Helmane. 2022. Effect of soil heterogeneity and its properties on apple growth in a hilly area. Abstracts of 3rd International Conference on the Scientific Actualities and Innovations in Horticulture 2022 SAIH 2022 "Development and Technology". Lithuanian Research Centre for Agriculture and Forestry, Lithuaniae Academia Scientiarum, p. 64 - 65
3. Rubauskis E., V. Pole, D. Udalovs, I. Borisova. 2022. Effects of some strategic approches to nitrogen supply in the apple orchard. Abstracts of 3rd International Conference on the Scientific Actualities and Innovations in Horticulture 2022 SAIH 2022 "Development and Technology". Lithuanian Research Centre for Agriculture and Forestry, Lithuaniae Academia Scientiarum, p. 21 - 22 
4. Strautiņa S., V. Laugale, I. Kalniņa, I. Krasnova. 2022. Rudens avenes saldēšanai un desertam. Līdzsvarota lauksaimniecība. Zinātniski praktiskās konferences tēzes, Jelgava, 44. lpp.
5. Rubauskis E., Lepse L., Lepsis J., Strautiņa S., Bundzēna G., Borisova I., Udalovs D., Skrastiņš P., Ofkants K. 2022. Ūdens pieejamība un nodrošinājums ābelēm izmantojot bioklimatisko koeficientu. Līdzsvarota lauksaimniecība: zinātniski praktiskās konferences tēzes. Jelgava: LLU, 37.lpp.
6. Udalovs D., Rubauskis E., Borisova I. 2022. Ābeļu ziedu mehāniskās retināšanas divu sezonu bilance Līdzsvarota lauksaimniecība: zinātniski praktiskās konferences tēzes. Jelgava: LLU, 38.lpp.
7. Rubauskis E. 2021. Preliminary evaluation of mechanical pruning of apple canopy at various environments. Abstracts of XII International Symposium on Integrating Canopy, Rootstock and Environmental Physiology in Orchard Systems, p. 22.

Seminar materials and popular scientfic publications, technological solutions and recomendations here.