METHOD OF FORECASTING YIELDING CAPACITY OF WINTER CEREALS UNDER ARID CLIMATE CONDITIONS Russian patent published in 2006 - IPC A01G7/00 

FIELD: agriculture, in particular, forecasting of cereals yielding capacity and improvement of intensive cultivation of winter cereals under arid conditions.

SUBSTANCE: method involves sowing; calculating hydrothermal coefficient value and providing forecasting on the basis of mathematical dependence; forecasting yielding capacity for next year from following expression: Y=k₁·A·G_s·(l/x²)+k₂·B/x+k₃·C/G_s, where Y is proposed yielding capacity, kg/hectare; A is seeding norm, pc/hectare; B is total of positive temperature values from sowing time to stable negative temperatures, C; C is spacing width, m; x is sowing time in days from the beginning of recommended terms, days; k₁=(0.6...0.8)·10^-3 is proportionality coefficient taking into account sort qualities of each seed in accumulating of grain mass, kg·days²/pc; k₂=(0.512...0.934) is proportionality coefficient taking into account influence of temperature mode upon formation of plant root system, kg·day/ C·m²; k₃=(7...150) is proportionality coefficient taking into account arrangement on field surface, kg/m; G_s is hydrothermal coefficient.

EFFECT: provision for obtaining reliable data on forecasting of yielding capacity of winter cereals during year.

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