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2004:
UTJECAJ SUSTAVA PROIZVODNJE I MIKORIZE NA PRINOS PORILUKA

INTENZITET PLODONOŠENJA SORATA KRASTAVACA ZA PRERADU U ZAVISNOSTI OD NAČINA UZGOJA

RESEARCH ON THE CONTROL OF MAJOR TOMATO CROP PATHOGENS AND PESTS

RESEARCH ON LOSSES OF POTATO INTENDED FOR PROCESSING DURING STORAGE

UTJECAJ RAZLIČITO PROIZVEDENIH PRESADNICA NA PRINOS BATATA [Ipomoea batatas L. (Lam.)]

ZLATNA KRUMPIROVA CISTOLIKA NEMATODA (Globodera rostochiensis Woll.) U HRVATSKOJ

POTROŠNJA VODE I MAKROELEMENATA U HIDROPONSKOM UZGOJU RAJČICE

UTJECAJ DUŠIKA I METODE GNOJIDBE NA PRINOS PAPRIKE (Capsicum annuum L. var. grossum)

RESEARCH ON SOME SEEDLING PRODUCTION PARAMETERS OF BRASSICA AND FLOWER CULTURES BRED IN FLOATING-TRAY SYSTEM

VEGETABLE SEED HYDRATION TREATMENT - POSSIBILITIES AND RISKS

DOZIRANJE VODE KORISTEĆI KOEFICIJENT NAVODNJAVANJA

ODABIR SORATA KUPUSA ZA KISELJENJE ZA ŽUPANIJSKU ROBNU MARKU "LAKTEC"

EFFECT OF ROW COVERS AND BLACK PLASTIC MULCH ON THE YIELD OF DETERMINATE TOMATOES

MASS LOSSES OF POTATO INTENDED FOR PROCESSING DUE TO PHYSIOLOGICAL PROCESSES

RESEARCH ON THE INFLUENCE OF EXPLANT TYPE AND VARIETY ON IN VITRO MULTIPLICATION IN LETTUCE

RESEARCH ON THE WATER REGIME OF TOMATOES CULTIVATED IN SOLARIUMS

UTJECAJ VOLUMENA LONČIĆA, MIKORIZE I STAROSTI PRESADNICA NA RAST I RAZVOJ PRESADNICA LUBENICA

DINAMIKA PLODONOŠENJA RAJČICE U HIDROPONSKOM UZGOJU

UTJECAJ VOLUMENA SUPSTRATA NA KOMPONENTE PRINOSA RAJČICE U HIDROPONSKOM UZGOJU

EFFECTS OF DIFFERENT NITROGEN RATES ON THE YIELD AND QUALITY OF CELERY (Apium graveolens var. L. dulce) IN TURKEY

CRVENICE ISTRE KAO SUPSTRAT ZA POVRĆARSKU PROIZVODNJU

UTJECAJ GIBERELINSKE KISELINE (GA3) NA KOMPONENTE PRINOSA ARTIČOKE

EFFECTS OF NITROGEN RATES ON THE YIELD AND QUALITY OF ENDIVE (Cichorium endivia L.) IN TURKEY

INFLUENCE OF NITROGEN FERTILIZATION ON THE BACTERIA AND VEGETABLE SEED SYMBIOSIS

FERTILIZATION OF BEAN SEED CULTURES WITH MACRO- AND MICRO- ELEMENTS APPLIED ON THE SOIL AND FOLIARLY

INFLUENCE OF WHITE FLEECE ON THE YIELD FORMATION OF EARLY POTATOES

INVESTIGATION OF THE EFFECT OF MALT AND PLANT EXTRACTS ON DIFFERENT PLANT PATHOGENS

ADAPTABILNOST NEKIH NJEMAČKIH I MAĐARSKIH SORATA KRUMPIRA NA RAZLIČITIM LOKACIJAMA U HRVATSKOJ

YELLOW STICKY TRAPS AS A TOOL FOR CONTROLING CABBAGE WHITEFLY (ALEYRODES PROLETELLA L.) ON BRUSSELS SPROUTS

PREZENTIRANI I OBJAVLJENI RADOVI iZ POVRĆARSTVA
pošalji upit
Zbornik sažetaka 39. znanstvenog skupa hrvatskih agronoma 2004. godine - OPATIJA
SEED BACTERIZATION IN RELATION TO THE RATES AND THE DIFFERENT METHODS OF FERTILIZER APPLICATION TO VEGETABLE SEED CROPS

Lucian HĂLMĂGEAN, Claudia CRAIU
"Aurel Vlaicu" University, Arad, Faculty of Food Industry, Tourism and the Environment Protection, str. Elena Dragoi nr. 3, 2900 Arad, Romania (contact e-mail: mzdremtan@inext.ro)

Introduction

The nitrogen and phosphorus process of fertilization of beans as well as of other vegetables extended progressively lately, from three points of view: the elimination of the lack of nitrogen during the first stages of growing, the important effect of phosphorus on the symbiosis, the lack of it limitating the nitrogen assimilation, and the certainty of obtaining a better crop than using exclusively the bacterization.

Confronted by a considerable fluctuation of the pedological and climatic conditions on different meridians and a different symbiotic experimental culture ability, the results generated numerous disputes, creating a rich reference material concerning this issue.

Our research intended to establish the effects obtained during the symbiosis process, depending on the level of the dosage and the conditions of using the nitrogen fertilizer and to provide phosphorus in "Starter" system.

Material and methods

The increasing importance of the atmospheric nitrogen assimilation process depending on the dosage and the nitrogen and phosphorus periods of application, determined the development of researches concerning this issue, under the area of Arad agro-ecological circumstances, a representative area for the western part of the country.

The experiment took place from 1999 to 2001, using Valja garden beans kind, 55 plants/square meter.

We used Biotrofin for beans seeds to be treated, a product made of two alive constitutive: a nitro-capturing bacterium, which provides the nitrogen from atmosphere and a second one called Bacillus megaterum, which renders the phosphate soluble, making it accessible for the plants.

The three-factors experiment (fertilization with nitrogen, phosphorus and bacterial treatment) was organized every year and the results capitalization was made using the method of analyzing the variations for the multi-annual experiences in the same area.

Results and discussion

The general data concerning different aspects of the results fluctuations, of the whole series of experiences prove that the kinds compared are not uniform.

Having in view only the fertilization with phosphorus, we may see an insignificant differentiation of the production, resulting from the double phosphate application in "Starter" system (80 kg/ha), as compared to the fertilization with 300 kg/ha applied in autumn, but with an economic importance. The seeds bacterization with Biotrofin (10 l/ha) is used as a measure of increasing the beans production (0,202 t/ha). In the case of nitrogen fertilization, the doses applied provide the increasing of the crop especially if applied during the vegetative period (0,265 - 0,409 t/ha).

As compared to other factors, the garden beans cultivation using phosphorus in "Starter" system is supported by the results obtained both experimentally and economically during the years and the results are kept under observation.

Bacterization represents an efficient method confirmed by the maximum level of production obtained as compared to other factors effect (2,838 t/ha in comparison with 2,636 t/ha) a 7,7% medium increase. Relating to nitrogen fertilization into partnership with phosphorus, the results obtained made obvious the great effect of the use of urea in vegetation, during the blossoming period.

Examining the nitrogen influence depending on bacterization, in relation with phosphorus, we may find a connection between bacterization and the increase of the doses of nitrogen, but only until 60 kg/ha. Applied in vegetation, especially under the form of urea, the nitrogen increases the symbiosis appearance with visible effects on the crop.

Bacterization depending on phosphorus in relation with nitrogen is favorable especially from an economical point of view, in association with fertilization in "Starter" system.

The phosphorus applied in "Starter" system makes the crop four times bigger than in the case of the normal way of utilization (34,2 in comparison with 9,1 kg seeds/kg s.a.). The use of the phosphorus generally produces an increase of the crop with 21,6 kg seeds/kg P2O5. The increase of the crop due to bacterization is 20,2 kg seeds/kg Biotrofin.

In the case of the fertilization with nitrogen the increase of the crop is 7,4 kg. It increases to 11,2 kg if 30 kg of urea are applied during the blossoming period.

Fluctuation values established on the basis of deviation from the standard are generally reduced, they did not exceed 10 in the case of any variants of the experience.

The most favorable effect on the beans crop corresponds to the partnership between fertilization with phosphates in the "Starter" system, fertilization with nitrogen under the form of ammonium nitrate and urea in a mixture of 60 kg/ha applied during the plants blossoming period of the seeds resulted in the bacterization process.

Conclusion

Having in view the mixture of different factors in relation with the beans grown from seeds, the most favorable effect on the crop corresponds to the partnership between the seeds bacterization with Biotrofin (10 l/ha), the fertilization with superphosphate in "Starter" system (80 kg/ha) and the fertilization with nitrogen under the form of ammonium nitrate and urea (60 kg/ha) applied during the plants blossoming period.

References

  1. Gheorghe, F. at al, (1990). Some aspects concerning beans for seeds high production. Cereal and industrial crops, Nr.10, Bucharest

  2. Hera, C. at al, (1985). Some aspects concerning the beans nutrition with nitrogen and phosphorus, Annals, I.C.C.P.T Fundulea, vol.II, Bucharest

  3. Popescu, A., (1990). The process of atmospherically nitrogen biological assimilation and its factors of conditioning. Agro-phyto-technical problems in theory and practice, Annals I.C.C.P.T Fundulea, vol.II, Bucharest


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