Peer-reviewed articles 17,970 +


Ionel Samfira; Nicolae Marinel Horablaga; Pompilica Iagaru; Marius Stroia; Ciprian Stroia
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
By product is broadly understood as a product obtained in a usually industrial or biological process in addition to the main product for which the process is carried out.
The main challenge addressed to humanity as well as productive ecosystems, regardless of the form of terrestrial or aquatic substrate, is to cope with the rapid rate of growth of the planet's population. The demographic growth of the planet must be in balance with the maintenance of the environment and also with climatic shifts.
By-products are often considered agricultural waste or residues, it contains valuable cellulosic nutrients that due to their organic origin can be successfully used in many other agricultural or industrial subfields.
It can be appreciated that at the level of Romania, the agricultural sector has as a land heritage about 18 million hectares, of which 10 are arable, 5 million are permanent meadows and about 3 million hectares are forests, with very favorable geographical conditions for the growth of plants and animals. This report illustrates the fact that each inhabitant of Romania has an area of approximately 0.41 ha of arable land.
This value is far above the average of several countries in the European Union and at the same time, it is double the EU average, which is at the level of 0.212 ha/inhabitant. The huge quantities of by-products, of vegetable residues from agriculture, can be estimated quantitatively at 15 million tons, and when converting this secondary production into money, the current value of 2.5 billion dollars is exceeded.
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[12] Potter C.S., Randerson J.T., Field C.B., Matson P.A., Vitousek P.M., Mooney H.A., Kloster S.A., Terrestrial ecosystem production: A process model based on global satellite and surface data, Global Biogeochemical Cycle, vol. 7, Issue 4, pp 811-841; Proceedings of the 15th European Grassland Federation Symposium, Brno, Czech Republic, pp 339-341, 1993;
[13] Lauenroth W.K., Grassland Primary Production: North American Grasslands in Perspective, in Perspectives in Grassland Ecology, book series Ecolstud, Volume 32, pp 3-24, 1998.
[14] Biomass energy potential in Romania, Add Energy,;
[15] Dragomir Nicoleta, Sustainable management for grassland multifunctionality, pp 51-61, published in Sustainable management of grasslands. A guide for the maintenance of ecosystem services, Samfira I., Popescu C.A., Editura Mirton Timisoara, 2021;
This paper is published from the own research funds of the University of Life Sciences „King Mihai I” from Timisoara.
Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 06-08 December, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
06-08 December, 2022
by product, agricultural sector, agricultural waste, environment