Growing winter wheat in continous [i.e. continuous] cropping and two-crop rotation | Gajenje ozime pšenice u monokulturi i dvopoljnom plodoredu
2009
Dolijanović, Ž., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Kovačević, D., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Oljača, S., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Momirović, N., Poljoprivredni fakultet, Beograd - Zemun (Serbia)
The influence of autumn, spring and total amount of rainfall on grain yield of winter wheat was investigated in monoculture and two crop rotation. The investigations are related to fifteen-year period. The type of soil on which the sort of winter wheat Pobeda was grown, under conditions of natural water regime was luvic chernozem. Winter wheat yields in investigated years were statistically and significantly different. On the basis of correlation and regression dependance of obtained grain yields of winter wheat on spring, winter and total amount of rainfall it was found that increasing the amount of autumn rainfall, grain yield was decreasing, especially in monoculture. However, increasing spring and total amount of rainfall, wheat grain yield increased in both investigated systems of growing. It means that in examined area (central part of Serbia) there is a sufficient amount of rainfall in winter period and that every increasing of the amount can decrease grain yield or even endanger wheat production. Therefore, the reason for lower grain yield of winter wheat in examined area was mainly lack of precipitation in spring period, when water is the most necessary for plants.
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