[Regularities of the complex influence of mineral nutrition and hydrodynamic conditions of vegetation on the production process of spring triticale]
2008
Semenenko, N.N., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Land Reclamation
Results of determination of regularities of the influence of mineral nutrition regime and hydrothermal conditions of vegetation on the photosynthetic activities, formation of the components of yielding capacity for each stage of organogenesis of plants and productivity of spring triticale (Triticosecale) cultivated on the anthropogenically transformed peat soils in the conditions of the Republic of Belarus were presented. In course of investigation the models of regularities of the influence of mineral fertilizers (doses of nitrogen, potash and phosphorous fertilizers), conditions of the vegetation period on the photosynthetic activity and formation of productivity factors by the organogenesis stages were constructed and presented. Realized correlated and regression analysis showed that between many factors (moisture content, temperature, mineral nutrition) and the main indices of photosynthetic activity of spring triticale there was the close correlated interaction described by the appropriate regression equations. The level of plant mineral nutrition, photosynthetic activity, components of yielding capacity by organogenesis stages as well as yielding capacity of spring triticale closely (R2=0,84-0,99) depended on the content of available compounds of phosphrous and potassium in soil. Photosynthetic activity of plants, development of yielding capacity factors closely depended on moisture content, temperature and nutrition regimen (R2=0,70-0,99). On the basis of developed regularities there were developed the optimal parameters of production process components, standards of the nutritional, water and temperature regimes which made it possible to provide the average number of 56 grains per triticale ear, 2 g and more of minimum weight of one ear and yielding capacity of 50-60 centners/ha
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