PARENT SESSION
Thursday, August 10, 8:00-11:30 am
COS 83 - Ecophysiology IV: photosynthesis and environmental gradients
Chickasaw, Mezzanine Level, Cook Convention Center
Presiders: R Boyce
Plant ecological impacts as artificial fertilization and rainfall on monocultivated rye (Secale cereale L.) abiotic stress tolerance.
László , Márton*,1, 1 Research Institute for Soil Science and Agricultural Chemistry of the Hungarian Academy of Sciences, Budapest, Hungary
ABSTRACT- Sustainable plant production has a well established relationship to ecological changes. Effects of nitrogen, phosphorus, potassium, and rainfall quantity and distribution were estimated in a long-term fertilization experiment on monocultivated winter rye (Secale cereale L.) indicator crop yield in an ecologically fragile region on a calcareous sandy soil with a low humus content in Hungary. Depending on the N, P, and K supplies, significant quadratic correlations were observed between the rainfall quantitty and distribution and the yield. The "R"s were as follows: control: 0.7489***, N: 0.8974***, NP: 0.8020***, NK: 0.7370***, NPK: 0.9047***.
Key words: ecology, rainfall, fertilization, rye