Adjustment of phytocenoses specific compound by influencing nitrogen-gathering activity of leguminous crops | Регулирование видового состава фитоценозов воздействием на азотфиксирующую активность бобовых компонентов
2010
Meerovskij, A.S., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Land Reclamation | Zabolotnyj, A.I., National Academy of Sciences, Minsk (Belarus). The V.F. Kuprevich Institute of Experimental Botany | Budkevich, T.A., National Academy of Sciences, Minsk (Belarus). The V.F. Kuprevich Institute of Experimental Botany | Biryukovich, A.L., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Land Reclamation | Marchenko, N.V., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Land Reclamation
Leguminous crops according to its nitrogen-fixing activity possess the following indexes (stated in decreasing order): haying agrocoenosis – birdsfoot deer vetch (Lotus corniculatus), broad-leaved clover (Trifolium pratense), Lucerne; pascual agrocoenosis – white sweet clover (Trifolium repens). Lucerne, awnless brome (Bromus inermis), and birdsfoot deer vetch intensively accumulated phenols and free amino acids in rhizosphere, thus determining high soil alleopathic activity in its rhizosphere and influencing on some extent nitrogen-gathering activity of leguminous crops when these cultures included into grass mixtures. Amid reclaimed sod-podzol soils during haying Lucerne and birdsfoot deer vetch had the highest level of nitrogen-gathering activity. Intensity of broad-leaved clover nitrogen-gathering activity in 3-4 times lower. Application of plant formation 2 and 4 cutting) did not influence intensity of symbiotic nitrogen-gathering activity of Lucerne plants.
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