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Joint International Conference on Long-term Experiments ...

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THE EFFECT OF SOME FOLIAR COMPOSITIONS ON THE PRODUCTION, NUMBER OF<br />

INFLORESCENCES AND FRUIT IN THE TECHNOLOGY OF CULTIVATING<br />

TOMATO IN THE FIELD<br />

Popa Alina-Grigoriţa<br />

University of Oradea, Faculty of Enviromental Protecti<strong>on</strong><br />

ABSTRACT<br />

The experiments proved the influence certain foliar compositi<strong>on</strong>s have <strong>on</strong> the producti<strong>on</strong> of<br />

tomato fruit, the number of inflorescences and fruit <strong>on</strong> the plant in the technology of<br />

cultivating tomato in the field, with an organic-mineral fertilizati<strong>on</strong> applied <strong>on</strong> the soil<br />

Key words: Foliar compositi<strong>on</strong>s, nutritive elements, producti<strong>on</strong>, number of inflorescences,<br />

number of tomato fruit.<br />

INTRODUCTION<br />

Compared to other horticultural soils (especially vine and tree growing), the soils cultivated<br />

with vegetables in the field are usually more fertile. This initial fertility must be maintained<br />

and developed in order to sustain the intensive character of the technology and nutriti<strong>on</strong> of<br />

tomato culture.<br />

The real needs of the field tomatoes towards the main nutritive elements (Cs= specific<br />

c<strong>on</strong>sumpti<strong>on</strong> N, P, K kg/ t product) are very important in the fertilizati<strong>on</strong> system of field<br />

tomatoes, the relati<strong>on</strong>s between the de<strong>term</strong>ining nutrients and the total quantity of nutritive<br />

elements “exported” from the soil together with the crops, at the area unit (Cg= global<br />

c<strong>on</strong>sumpti<strong>on</strong> N, P, K kg/ ha).<br />

As regards the specific and global c<strong>on</strong>sumpti<strong>on</strong>s, the tomatoes take part in the group of<br />

species with an average c<strong>on</strong>sumpti<strong>on</strong>. The fertilizati<strong>on</strong> systems must ensure a management<br />

of the nutrients, which, by sorts, doses and methods, must de<strong>term</strong>ine the accomplishment of<br />

great quality producti<strong>on</strong>s (Rusu M. et. al, 2005).<br />

Taking into account the intensive character of the technology of tomato culture,<br />

according to the fertilizati<strong>on</strong> <strong>on</strong> soil, it was studied the effect of some foliar compositi<strong>on</strong>s in<br />

order to finish some systems of fertilizing tomato, based <strong>on</strong> the positive interacti<strong>on</strong> of the<br />

fertilizati<strong>on</strong> <strong>on</strong> soil to the foliar <strong>on</strong>e; the latter having an integrated character.<br />

MATERIAL AND RESEARCH METHOD<br />

The field culture was initiated <strong>on</strong> argic faeoziom soil.<br />

The experiments were carried out in the year 2003, in locality Oradea, using Unirea soil.<br />

The experiment was d<strong>on</strong>e with the blocks method, in 3 repetiti<strong>on</strong>s, the area of a variant<br />

being 6, 4 mp.<br />

The effect of 4 foliar fertilizers was studied, and the witness was showered with water.<br />

292

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