Rangiranje opština AP Vojvodine prema višedimenzionalnom pokazatelju robnosti stočarske proizvodnje

Marketability of livestock production was analyzed based on the marketability of both pork, beef, sheep and poultry and eggs and cow's milk. The sequential order of the Vojvodina municipalities according to the observed denominators is not identical. But, Spearman's coefficient of correlation points to a statistically very high degree of accordance between the rank-list of marketability of pork and the rank-lists of marketability of beef, poultry and milk as well as the rank-list of poultry and sequential classification of sheep meat and eggs, beef and milk. There was a statistically high correlation between the rank list of marketability of sheep meat and pork, beef and milk as well as poultry and milk. Based on the value of Kendal coefficient of ranking, it can be concluded that there exists very high degree of accordance of all the rank lists being observed simultaneously. For determination of sequential classification according to the achieved marketability of all the analyzed livestock production commodities in the sense of synthetic denominator, Ivanovic distance was used in the present work.Robnost stočarske proizvodnje analizirana je preko robnosti svinjskog goveđeg, ovčijeg i živinskog mesa, kao i robnosti jaja i kravljeg mleka. Redosled opština u AP Vojvodini prema posmatranim pokazateljima nije identičan. Međutim, Spearman-ov koeficijent korelacije ukazuje na statistički vrlo visok stepen saglasnosti rang liste robnosti svinjskog mesa sa rang listama robnosti goveđeg mesa, živinskog mesa i mleka, kao i rang liste živinskog mesa i redosledne klasifikacije ovčijeg mesa i jaja, goveđeg mesa i mleka. Statistički jaka veza konstatovana je između rang liste robnosti ovčijeg mesa i svinjskog mesa, goveđeg mesa i mleka, kao i živinskog mesa i mleka. Na osnovu vrednosti Kendal-ovog koeficijenta ranga može se zaključiti da postoji vrlo visok stepen saglasnosti svih rang lista posmatranih istovremeno. Za određivanje redosledne klasifikacije prema ostvarenoj robnosti svih analiziranih stočarskih proizvoda kao sintetički pokazatelj, u radu je iskorišćeno Ivanović-evo odstojanje

Haotičan model rasta poljoprivrednog stanovništva

Using the autoregression models, the paper considers movement of agricultural population. Irregular movement of agricultural population can be analyzed within the formal framework of the chaotic growth model. The basic aims of this paper are: firstly, to set up a chaotic growth model of agricultural population; and secondly, to analyze the stability of agricultural population movement according to the presented logistic growth model in the world and eight group of countries in the period 1967-1997.U svetu, apsolutni nivo poljoprivrednog stanovništva je u stalnom porastu. Medjutim, stope rasta poljoprivrednog stanovništva ukazuju na nestabilnost relativnih promena ove kategorije stanovništva. Stopa rasta poljoprivrednog stanovništva je dostigla maksimum krajem 60-tih godina, kada je iznosila 1,35%. U toku 70-tih godina je padala, u toku 80-tih rasla, da bi ponovo padala u toku 90-tih godina, a poslednjih godina se kretala oko 0,4%. Osnovni cilj ovog rada je: prvo, postaviti haotičan model rasta poljoprivrednog stanovništva; i drugo, prema prezentiranom logističkom modelu rasta analizirati stabilnost kretanja poljoprivrednog stanovništva u svetu i u osam grupa zemalja u periodu od 1966. do 1999.godine. Koeficijent a ima vrednost iz intervala koji zadovoljava uslov lokalne stabilnosti ravnoteže, tj., izmedju 0 i 2 u autoregresionim modelima za svet, Aziju i Pacifik, zemlje u razvoju, Bliski Istok i Severnu Afriku, kao i Sub-Saharsku Afriku. Ove grupe zemalja karakteriše lokalno stabilne pozitivne ravnotežne tačke, koje respektivno iznose: 1,1511; 1,1197; 1,1597; 1,0019 i 2,9976, a takodje i stalni rast apsolutnog nivoa poljoprivrednog stanovništva. Za zemlje Evropske Unije, razvijene zemlje i zemlje u tranziciji je utvrdjen negativan koeficijent a i odsustvo pozitivne tačke ravnoteže. To su ujedno i grupe zemalja u kojima je prisutna tendencija stalnog smanjenja poljoprivrednog stanovništva u apsolutnom iznosu. Zemlje Latinske Amerike i Karipskih ostrva se izdvajaju od ostalih grupa zemalja. Naime, u njima broj poljoprivrednog stanovništva je bio u porastu od 1966. do 1980. godine, a posle toga je počeo da opada. Ova specifičnost se odrazila tako da koeficijent a ima negativnu vrednost, ali postoji tačka ravnoteže, 1, 0130. Reprezentativnost analiziranog modela je potvrdjena vrednostima indeksa korelacije oko 1 i koeficijentima varijacije nižim od 1 %. Validnost razmatranog modela rasta potvrdjena je kroz različite vrednosti koeficijenta alfa, i prisustvo ili odsustvo pozitivnih ravnotežnih tačaka u skladu sa smerom kretanja poljoprivrednog stanovništva u posmatranom periodu

Uticaj prirodnih biostimulatora i spororazlagajućeg đubriva na kvalitet rasada ruzmarina (Rosmarinus officinalis L.)

In the present work the effect of natural biostimulators and different doses of slow disintegrating fertilizer on the quality of rosemary seedlings was studied. Rosemary seedlings were produced in containers, according to the 'speedling system'. During the production of seedlings natural biostimulators Megafol and Viva and microbiological fertilizer Slavol were added. The applied biostimulators made a significant effect on the quality of rosemary seedlings. Different doses of the slow disintegrating fertilizer Scotts (Osmocote Extact) were applied (0, 1, 2, 3 and 4 g/l), which also produced a significant influence.U radu je ispitivan uticaj prirodnih biostimulatora i različitih doza spororazlagajućeg đubriva na kvalitet rasada ruzmarina. Rasad ruzmarina je proizveden u kontejnerima po 'speedling sistemu'. Tokom proizvodnje rasada dodavani su prirodni biostimulatori Megafol i Viva i mikrobiološko đubrivo Slavol. Upotrebljeni biostimulatori su ostvarili značajan efekat na kvalitet rasada ruzmarina. Korišćene su i različite doze spororazlagajućeg đubriva (0, 1, 2, 3 i 4 g/l) Scotts (Osmocote Extact), koje su također ostvarile značajan uticaj

Pseudomonas SP. in tomato rhizosphere (Lycopersicon esculentum Mill)

The aim of research is determining the presence and number of Pseudomonas sp in tomato rhizosphere. The tests were conducted on a tomato hybrid Big Beef grown on the soil type pseudoclay-hard. Bacteria isolation was conducted in the root zone 20-40 cm. Rhizosphere was separated mechanically on rhizospheral soil, root (unsterilized) and root (sterilized). Tripofan Medium was used for isolation of Pseudomonas sp. from the soil. In the obtained results biochemical and morphological characteristics were conducted. Results analysis was conducted with suitable statistical methods. Based on the results, we can conclude that the number of bacteria in different variants is statistically extremely significantly different on Tripofan Medium and statistically significantly different on Nutritious agar

Uticaj različitih supstrata na kvalitet rasada bosiljka (Ocimum basilicum L.)

In this study five different substrates were used, such as: compost; mixture of compost, Lumbrikus H and garden soil; mixture of compost and Lumbrikus H; mixture of compost, Lumbrikus H and peat Galicina and Seedling Klassman substrate. Basil seedling was produced in containers according to "speeding" system. The studies have shown that the best quality of basil seedling of varieties Genovese and Lattuga is achieved when the mixture of substrates Compost, Lumbrikus H and Galicina peat are applied in the volume proportion of 50% : 30% : 20%.U radu je ispitivano pet različitih supstrata kao što su; kompost; mešavina komposta, Lumbrikusa H i baštenske zemlje; mešavina komposta i Lumbrikusa H; mešavina komposta, Lumbrikusa H i treseta Galicine i Seedling Klassman supstrat. Rasad bosiljka je proizveden u kontejnerima po "speeding" sistemu. Ispitivanja su pokazala da se najbolji kvalitet rasada bosiljka sorata Genovese i Lattuga ostvaruje pri mešavini supstrata Komposta, Lumbrikus H i Galicina treseta u zapreminskom odnosu od 50% : 30% : 20

Prisustvo Alternaria spp. na semenu biljaka iz familije Apiaceae i njihov uticaj na nicanje

Considerable damping-off of the seedlings of several commercial Apiaceae plant species was observed in Serbia. The infection of a total of 48 seed samples of nine vegetable and spice plants with phytopathogenic Alternaria spp. was established using the deep-freeze-blotter method. Identification of Alternaria species was performed using both conventional methods and PCR. Four different plant-pathogenic Alternaria species were detected in Serbia: A. dauci, A. radicina, A. petroselini, and A. alternata, all of which caused reduction of carrot, parsley, parsnip, and celery seed emergence. Alternaria dauci, A. radicina, and A. petroselini were relatively more aggressive compared to A. alternata. Substantial seed infection levels and strong influence of Alternaria spp. on seed emergence indicated that production of Apiaceae seed needs to be improved in order to obtain pathogen-free seed.U proizvodnji nekoliko useva biljaka izfamilije Apiaceae, uočeno je intenzivno propadanje sejanaca u Srbiji. Primenom metode zamrzavanja na filter papiru, ustanovljena je zaraza ukupno 48 uzoraka semena 9 gajenih biljaka povrća i začinskih biljaka fitopatogenim vrstama izroda Alternaria. Identifikacija Alternaria spp. obavljena je primenom konvencionalnih metoda i PCR. U Srbiji je detektovano prisustvo ukupno četiri fitopatogene vrste izroda Alternaria: A. dauci, A. radicina, A. petroselini i A. alternata koje su izazvale smanjeno nicanje mrkve, peršuna, paštrnaka i celera. A. dauci, A. radicina i A. petroselini bile su relativno agresivnije u poređenju sa A. alternata. Značajan nivo zaraze semena, kao i ispoljeni uticaj Alternaria spp. na nicanje, ukazali su da bi proizvodnju semena vrsta familije Apiaceae trebalo poboljšati u cilju dobijanja zdravog semena

Uticaj različitih doza spororazlagajućeg đubriva na kvalitet rasada kadifice (Tagetes patula L.) i ukrasne žalfije (Salvia splendens L.)

The paper investigates the effect of applying different rate of slow disintegrating fertilizer Scotts (Osmocot Exact) with the formula 15:9:9:MgO+Me to the quality of seedlings of marigold and scarlet sage. The marigold and scarlet sage seedlings were grown in poly-propylene containers (speedling system) and poly-propylene pots (pot system). Slow disintegrating fertilizer rate have been applied to the seedlings in the course of their growing (0, 1, 2, 3, i 4 g/l). The obtained data show that the 4g/l substrate rate of slow disintegrating fertilizer has significant effects on the studied parameters of seedlings quality of studied species.U radu je ispitivan uticaj različitih doza spororazlagajućeg đubriva Scotts (Osmocot Exact) formulacije 15:9:9:MgO+Me na kvalitet rasada kadifice i ukrasne žalfije. Rasad kadifice i ukrasne žalfije je proizveden u polipropilenskim kontejnerima (speedling system) i polipropilenskim saksijama (pot system). U toku proizvodnje rasada dodavano je spororazlagajuće đubrivo u dozama (0, 1, 2, 3, i 4 g/l). Dobijeni rezultati ukazuju da doza spororazlagajućeg đubriva od 4g/l supstrata značajno utiče na ispitivane parametre kvaliteta rasada ispitivanih vrsta

Uticaj različitih doza spororazlagajućeg đubriva na kvalitet rasada gazanije (Gazania rigens L.)

The work has examined the influence of slow disintegrating fertilizer rates of Scotts (Osmocote Exact) formulation 15:9:9:MgO + Me on quality of Gazania rigens L. seedlings. The seedlings of Gazania rigens L. was produced in polystyrene containers (speedling system) and polypropylene pots (pot system). During the production of seedlings the fertilizer has been applied in rates (0, 1, 2, 3, and 4g/l). The results show that the fertilizer rate of substrata 4g/l influences the qualitative properties of Gazania rigens L. seedlings.U radu je ispitivan uticaj različitih doza spororazlagajućih đubriva Scotts (Osmocote Exact) formulacije 15:9:9:MgO + Me na kvalitet rasada gazanije. Rasad gazanije je proizveden u polistirenskim kontejnerima (speedling system) i polipropilenskim saksijama (pot system). U toku proizvodnje rasada dodavano je đubrivo u dozama (0, 1, 2, 3, i 4g/l). Dobijeni rezultati ukazuju da doza đubriva od 4g/l supstrata značajno utiče na kvalitativne osobine rasada gazanije

Uticaj prirodnih biostimulatora i spororazlagajućih đubriva u komercijalnoj proizvodnji rasada begonija (Begonia semperflorens)

The present research in the study of the effect of application of natural bio-stimulants and slow-release fertilizers on commercial production of begonia (Begonia semperflorens) saplings. Two types of containers were deployed in the production process, whereas the results of the experimental research showed that the application of both slow-release fertilizers and natural bio-stimulants in further production is only justifiable in cases when large volume containers are deployed in commercial production of sapling. The application of those significantly influences the increase in stalk weight, number of sprouts and number of blossoms. The application of natural bio-stimulants may be justifiable with the saplings that have previously been produced in smaller containers, since they have auspicious effect upon development of the root, i.e. upon its length.U radu je ispitivan uticaj primene prirodnih biostimulatora i spororazlagajućih đubriva u komercijalnoj proizvodnji rasada begonija (Begonia semperflorens ).Za proizvodnju rasada korišćeno je dva tipa kontejnera a dobijeni rezultati eksperimentalnih istraživanja pokazali su da je primena i spororazlagajućih đubriva i prirodnih biostimulatora u toku dalje proizvodnje , opravdana samo u slučaju kada se za proizvodnju rasada koriste veći kontejnerima. Njihovom primenom utiče se značajno na povećanje nadzemne mase, broja pupoljaka i broja cvetova. Primena prirodnih biostimulatora može biti opravdana i kod proizvodnje rasada u manjim kontejnerima jer povoljno utiče na razvoj korena tj. njegovu dužinu

Modeliranje proizvodnje rasada bosiljka - izbor kontejnera

Basil (Ocimum basilicum L.) is an ornamental, medicinal, aromatic plant and it is also used as a spice. Its manifold use has greatly contributed to its significance in the Mediterranean region. Until now the production of basil seedlings in warm beds has been meeting the needs with regard to the herb. However, the ever-increasing interest for the plant has initiated the need to improve the technology of seedling production. The intensive container seedling production has a number of advantages and is used in both vegetable and flower production. The speedling system, i.e. the system of polystyrene containers with pots of different volumes for substrate and seed sowing is known to be the most rational and practical container production system. The objective of the study was to develop a model for basil seedling production under controlled conditions using containers of various sizes. Preliminary investigations were carried out in 2005. The production of basil seedling was analyzed with respect to its growing under field conditions and consumption as a fresh spice. The seedlings were grown in containers of seven different sizes. The most favorable basil seedling quality for the field production was obtained in the largest sized containers cells (76 cm3). The highest basil fresh weight yield per m2 was obtained in 14-cm3 cell containers.U proizvodnji lekovitih, a naročito aromatično-začinskih, biljnih sirovina bosiljak zauzima značajno mesto. Zato se unapređenju tehnologije gajenja ove vrste, kod nas, daje sve veći značaj. Predmet ovog rada je praćenje uticaja primene različitih kontejnera na kvalitet rasada bosiljka u odnosu na njegovu dalju primenu. Rasad bosiljka je proizveden u sedam različitih kontejnera a od pokazatelja kvaliteta rasada praćeni su: visina biljke, broj listova, masa sveže, masa suve biljke i masa svežeg korena. Rezultati istraživanja su statistički obrađeni i izvršeno je rangiranje kontejnera. Za proizvodnju rasada bosiljka najbolji rezultati su postignuti uzgojem u kontejnerima sa zapreminom ćelija od 76 cm3. Dok za proizvodnju bosiljka kao svežeg začina najbolji rezultati su postignuti uzgojem u kontejnerima zapremine ćelije od 14 cm3