Harvest of agricultural crops depends on availability of biological properties of plants, aggregate of technological measures for plants growth, peculiarities of soil covering and weather and climate conditions, social importance of products and their economic value.
Crop capacity of spring barley depends on many factors, among which there are the most important ones such as light, heat, moisture, mineral nutrition etc. Climate changes that became particularly noticeable during the recent decade cause change of agro-climatic conditions of spring barley growing, which, in their turn, cause change of rates of crops growth, change of parameters of formation of its productivity which significantly determines the level of crop capacity.
Photosynthetic activity of plants depends mainly on supply of solar radiation as the primary source for all biological and physical processes taking place in plants. According to data of studies the role of solar radiation in plants’ life appears to be multilateral one and is determined not only by patterns of change of elements of plants’ photosynthetic activity depending on each other, but also by the influence of changes of agro-climatic and farming practices, plants’ density, standards and periods of irrigation and nutrition.
Estimation of the generalized characteristic of soil-climatic terms millet of tillingl and its productivity is given.
They are estimated the change of agro climatic resources in the Ukrainian part of the Danube Delta sub-basin in 2011-2030 years and 2030 – 2050 years due to climate change, in a compared with the base period 1986 – 2005 years. For the assessment of climate change in Ukraine A1B scenario, the regional climate model MPI-M-REMO, a global model – CHAM5-r3 have been used. The evaluation of the heat and humidity of the growing season, and evaluation of the changes of agro-climatic conditions of winter wheat in relation to climate change has been done.
The estimation of change climatic recourse of the Lugansk region was examined in 2011-2030 and 2031-2050 years in connection with the changes of climate in compression by base period 1970-2010 years. Using models was assessed photosynthesis production and vibrations of the productivity of winter wheat in the conditions of change of climate.
In this article we defined, that the quantity of harvest is determined by solar radiation income and the sum of temperatures during the whole vegetation period, and, especially, fruiting period. Statistical relationships between eggplants harvests and different levels of thermal conditions in different interphase periods are developed.
On the basis of the field experiments conformities to law of dynamics of biomass of organs of plants are set.