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STARE I PRIZNATE SORTE U EKOLOŠKOJ PROIZVODNJI POVRĆA

UTJECAJ ROKOVA UZGOJA I BERBE NA KVALITATIVNA SVOJSTVA KINESKE RAŠTIKE (Brassica rapa L. ssp. chinensis (L.) Hanelt

UTJECAJ MIKORIZE I RAZLIČITO OBOJENIH PE FILMOVA NA PRINOS SLATKOG KRUMPIRA - BATATA (Ipomea batatas L.)

INFLUENCE OF SUBSTRATE COMPOSITION ON THE QUANTITY AND QUALITY OF PLEUROTUS MUSHROOMS YIELD

HIDROPONIJSKI UZGOJ PAPRIKE (Capsicum annuum L.) NA KAMENOJ VUNI

MORPHO - ANATOMICAL CHANGES PRODUCED BY THE PHYTOPHTHORA INFESTANS (MONT.) DE BY. AT THE TOMATO CROP IN GREENHOUSE

NEKE KARAKTERISTIKE SLOVENSKIH SORTI POVRĆA ZA EKOLOŠKU PROIZVODNJU

THE DROOPING IRRIGATION AND THE WATER CONSUMPTION IN THE CASE OF SOLARIUM CULTIVATED CUCUMBERS

ANALIZA PROFITABILNOSTI PROIZVODNJE RANOG KUPUSA

PRINOS I SKLADIŠNA SPOSOBNOST SORATA LUKA

FIELD RESISTANCE OF SEVEN DIFFERENT LETTUCE CULTIVARS ON THE OCCURRENCE OF LETTUCE DOWNY MILDEW (Bremia lactucae Regel)

YIELD AND QUALITY OF FORCED CHICORY (Chicorium intybus L.) cv. 'Goriški'

MINERALNI SASTAV RADIČA (Cichorium intybus var. foliosum L. ) PRI RAZLIČITIM GNOJIDBAMA

UTJECAJ STAROSTI PRESADNICA I KULTIVARA NA KOMPONENTE PRINOSA TIKVICE

THE NEW ADMITED DOMESTIC AND INTRODUCED VARIETIES OF TOMATOES

UTJECAJ SUSTAVA PROIZVODNJE I MIKORIZE NA VEGETATIVNI RAST I PRINOS RAJČICE U POSTRNOM ROKU UZGOJA

UZGOJ RAJČICE NA INERTNIM SUPSTRATIMA

SUVREMENI KOMUNIKACIJSKI SUSTAVI U FUNKCIJI RAZVOJA HRVATSKE POVRĆARSKE PROIZVODNJE

IZBOR KULTIVARA RAJČICE ZA HIDROPONSKI UZGOJ

KAKVOĆA PLODOVA RAJČICE UZGOJENIH NA KAMENOJ VUNI

EFIKASNOST FOLIJARNO DODANOG Ca U SPRJEČAVANJU POJAVE VRŠNE TRULEŽI PLODA PAPRIKE

REACTION OF CAPSICUM SPECIES, HYBRIDS AND BREEDING LINES TO OBUDA PEPPER TOBAMOVIRUS (SYN: TOMATO MOSAIC TOBAMOVIRUS)

INTRODUKCIJA KULTIVARA LUBENICE U DALMATINSKA KRŠKA POLJA

NAVODNJAVANJE ZASLANJENOM VODOM U UZGOJU LUBENICE

PROMJENE SADRŽAJA ŠEĆERA TIJEKOM MLIJEČNE ZRIOBE GENOTIPOVA KUKURUZA ŠEĆERCA

PREZENTIRANI I OBJAVLJENI RADOVI iZ POVRĆARSTVA
pošalji upit
Zbornik sažetaka 38. znanstvenog skupa hrvatskih agronoma 2003. godine - OPATIJA
THE EFFECT OF DIFFERENT TYPES OF FERTILIZATION AND PLANTS DENSITY ON TOMATOES CULTIVATED IN GREENHOUSE ON ORGANIC SUBSTRATUM

Maria APAHIDEAN, Al. S. APAHIDEAN, D. MĂNIUŢIU, Rodica GANEA, Diana FICIOR, Mihai JURIAN

Vegetable Growing Department, University of Agricultural Sciences and Veterinary Medicine Cluj Napoca, Romania (E-mail: fdiana29@yahoo.com)

Introduction
In Romania, the greenhouses are cultivated in classical culture system (in soil) and as a result, the yields are relatively small and late and economically efficiency is reduced. With a view to finding a new technological solution for greenhouse tomatoes yield, at the USAMV Cluj-Napoca we have studied the possibility of growing soilless tomatoes, on organic substratum, using cheap and local, easy available materials. The systems on organic substratum in mat polyethylene bags are simple, cheap, no polluting and can represent for Romania an alternative for the soil culture systems. The aim of our research was to establish the influence of plants density and fertilization manner upon the greenhouse tomatoes grown on organic substratum.

Materials and Methods
The research concerning the type of fertilization and tomatoes plant density cultivated on organic substratum was organized as a bifactorial experience.
   A factor - plant density: a1= 20 000 pl/ha, a2= 32 000 pl/ha, a3= 42 000 pl/ha.
   B factor - type of fertilization: b1= root fertilization, b2= root and foliar fertilization.
The experiments were developed between 2001-2002 in USAMV Cluj-Napoca greenhouse. As biological material has used CRONOS F1, obtained by Nunhems Concern.
Root fertilization has made once at two weeks using N, P, K solutions. Foliar fertilization has made three times during the period of vegetation. It was used a foliar fertilizer with micro and macronutrients made by Chemistry Faculty of Cluj-Napoca.
The planting of the transplants in experimental culture was done in the second part of January 2002. Usual technology for Ist cycle tomatoes culture was applied. An irrigation pipe was laid along the middle of the double rows and small-bore tubing was moved into position to water each plant.
Observations concerning growth and plant fructification, quantity and quality of yield were done.

Results and discussion
The plants vigorous manifested by plant height and average number of leaves, records better results at variants with 42 000 pl/ha and root + foliar fertilization.
Data concerning combined influence of both experimental factors on early yield of tomatoes reveal important findings (table 1).
Thus lower early yield recording in 2002 was owed to an unfavorable climate in the beginning of plants growth (low temperature, high cloudiness). On the other hand, early yield recording in 2002, about 5,0-6,7 kg/m2 were higher as early yield recording in classical system (in soil), about 2-3 kg/m2.
The best total yields were recorded for all variants with great plant density. On an average, the evolution of total yield was similar with the evolution of early yield. It increases with the increase of plants density. The best results statistical provided were recorded at the variants with great plants density and root and foliar fertilization 11,8-12,3 kg/m2.
The yield quality was influenced positive by both plants density and type of fertilization.

Conclusions
1. Early yield for variants with great plants density was significantly better than early yield for variants with 20 000 pl/ha, indifferently of fertilization type. The best early yield, 6,7 kg/m2 was obtained at variant with 32 000 pl/ha root and foliar fertilization.
2. The increase of plants density combined with a root and foliar fertilization lead to increase of total yield from 9,1 kg/m2 to 12,3 kg/m2.

References
Baudoin, W. O., Winsor G. V., Schwarz M., 1990, Soilless culture for Horticultural Crop Production, F.A.O.
Plant-Prod.
Carpentier, T. D., 1995, Analyzing an Managing Nutrition of Vegetables Grown in Upright Polyethylene bags, Journal of Plant Nutrition, vol. 5/8.
Table 1. The influence of plants density and type of fertilization on tomatoes yield
VariantsEarly yieldTotal yield
Plants densityType of fertilizationMean Yield%+D Kg/m2Significance of differenceMean Yield%+D Kg/m2Significance of difference
20000Root fertilization5,0100,0--9,1100,0--
32000Root fertilization5,8118,0+0,8*10,9118,8+1,8**
42000Root fertilization6,0121,0+1,0*10,6116,0+1,5*
20000Root + foliar fertilization5,2104,2+0,2-9,9108,1+0,8-
32000Root + foliar fertilization6,7135,3+1,7***11,8129,2+2,7***
42000Root + foliar fertilization6,5131,1+1,5**12,3134,1+3,2***
DL 5% 0,8 
DL 1% 1,2 
DL 0,1% 1,7 


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