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Producing seedlings in forms, with or without pressing the nutritional mixture (the seedlings are replanted with the nutritive substrate, in which they developed) makes this method particularly useful for cultivation technologies in greenhouses and solariums. Seedlings produced in pots or cubs are obtained by directly sowing plants in pots or cubes, in order to replant them in the definitive place along with the soil they grew in, so that the roots are affected as little as possible. Thus, the shock caused by replanting is reduced, the setting occurs more rapidly and plants continue to grow without any stagnation in vegetation, obtaining earlier and larger productions. Potting soil ensures better nutrition conditions, water and nutrient reserves, which ensure that seedlings set even in draught conditions. In the paper experimental researches are presented conducted in the laboratory to determine functional and qualitative work indices of an installation for simultaneously filling pots with nutritive mixtures and sowing. This installation operates in stationary conditions in multiplication greenhouses, having the role of simultaneously filling plastic material pots (6, 8, 10 and 12 cm square and 6-12 cm high) with nutritive material and sowing. The installation can also be used to fill pot sets, made from 2, 3, 4 and 5 cm hexagonal (honeycomb shaped) paper. Functional work indices determined were: linear speed of the conveyor from the filling machine, flow rate of the distribution device from the filling machine, the depression in the distribution head. Qualitative work indices determined were: compaction degree, sowing precision as the number of seeds in pots, lateral seed displacement compared to the centre of the pot, the depth of burying the seeds. [ABSTRACT FROM AUTHOR]

Due to the changes that have taken place over the last period of time, at the level of the macromedium and micro-environment factors of an agricultural enterprise, the agricultural producer is challenged to have an activity characterized by performance and competitiveness. In order to support the needs of consumers of agri-food products, which suffer from many changes, it is important for the agricultural entity to obtain agricultural production at a higher quality level. This paper presents the stages of the establishment of a vegetable farm with professional solariums and greenhouses, having as main activity the tomato, pumpkin and spinach crops. During the paper, the elements of the micro-society (objectives, risks, market strategies), as well as elements of the macromedi (economic, technological, politico-legislative, natural) will be presented. It is also attempted to briefly present the aforementioned crop technology of vegetables. As a method of analysis, a feasibility study on setting up a vegetable farm will be presented in this paper, taking into account annual expenditure, estimated revenue, including estimated production costs. After analyzing all the elements presented, the section "Results and Discussions" presents the financial result and the recovery of the investment, taking a five-year horizon. [ABSTRACT FROM AUTHOR]

Tomatoes are an important crop in Romania; they ranks first as share in greenhouses and solariums. The preferential use of the tomato F1 hybrids led to preponderant use of seeds of foreign origin other than Romania. So, in present is required the creation of Romanian cultivars (varieties and F1 hybrids) destined for cultivation in protected spaces. The objective of this research was to establish an optimal technology for producing some seedlings of genitors from the Lycopersicon esculentum specie for cultivation in second cycle in greenhouse and use as germplasm. This research was conducted in the Laboratory of Horticultural Crops in Protected Spaces, from Horting Institute Bucharest, Romania. The biological material was composed of tomato, the lines L26C, L28, L80, L548 and L2000, creations from the germplasm bank of Research and Development Station for Vegetable Growing Buzau (VDRS Buzău). In order to achieve this objective, the ecological demands of the specie have been complied. The partial results have been obtained to ensure coincidence at flowering of the parental organisms. [ABSTRACT FROM AUTHOR]