Production of basic agricultural crops in AP Vojvodina: Trends and municipalities ranking

Abstract

In this paper, the development level of field crop production in municipalities of AP Vojvodina was observed, in the period from 1989 to 2008, through indicators of presence of harvested areas, total production and production per ha of main field crop cultures: wheat, corn, sugar beat, sun flower, clover and alfalfa. The tendency of change of observed traits of main field crop cultures was monitored. Ranking of the municipalities of AP Vojvodina is not uniform based on presence of observed field crop cultures. Therefore, Spearman correlation coefficient indicates medium, but statistically very significant level of compliance of formed rankings based on individual field crop cultures. Statistical significance was not demonstrated only in the case of presence of surfaces under sugar beat, clover and alfalfa, as well as sunflower and clover. Based on the test of the independence of the rankings, on the territory of the municipalities of AP Vojvodina, it was recorded that investigated field crop productions were mutually independent. Considering that the level of development of the municipalities of AP Vojvodina was analyzed through several indicators of field crop production for determination of the synthetic ranking which would show which of the municipalities is most developed in regard to observed field crop productions, Idistance was used in the paper.

U radu se posmatra nivo razvijenosti ratarske proizvodnje u opštinama AP Vojvodine, u periodu od 1989. do 2008. godine, preko indikatora zastupljenosti požnjevenih površina, ukupne proizvodnje i prinosa po hektaru osnovnih ratarskih kultura: pšenice, kukuruza, šećerne repe, suncokreta, deteline i lucerke. Posmatra se tendencija promene posmatranih obeležja osnovnih ratarskih kultura. Redosled opština AP Vojvodine nije jedinstven na osnovu zastupljenosti posmatranih ratarskih kultura. Stoga Spearmen-ov koeficijent korelacije ukazuje na srednji, ali statistički veoma značajan stepen slaganja formiranih rang lista na osnovu pojedinačnih ratarskih kultura. Statistička značajnost nije ispoljena jedino između zastupljenosti površina pod šećernom repom, deteline i lucerke, kao i suncokreta i deteline. Na osnovu testa nezavisnosti rangova, na teritoriji opština AP Vojvodine, zabeleženo je da su ispitivane proizvodnje ratarskih kultura međusobno nezavisne. Za određivanje sintetičkog ranga koji bi pokazao koja opština ima najbolju razvijenost svih posmatranih ratarskih kultura u radu je korišćena I-distanca.