Method and system for determining sunflower meteorological yield

Abstract

The invention provides a method and a system for determining sunflower meteorological yield. The method comprises: current-year sunflower meteorological index information is predicted through a meteorological index prediction model according to main meteorological index information, mainly including historical data and current-year known time data, influencing crop growth in a region where a current crop is located, and then the current-year sunflower meteorological index information is predicted through a meteorological index-meteorological index-meteorological index prediction model; The meteorological biomass prediction model predicts the meteorological biomass of the sunflower in each growth period in the current year, and through the meteorological biomass-meteorological yield, the meteorological biomass of the sunflower in each growth period is predicted; and the meteorological yield prediction model predicts the meteorological yield of the sunflower in the current year. According to the method and the system for determining the meteorological yield of the sunflowers, meteorological indexes of the sunflowers in each growth period are established. The meteorological biomass prediction model can realize meteorological biomass prediction of the sunflower in each growth period, thereby improving the accuracy of the prediction of the meteorological yield of the sunflower, realizing the dynamic release of the meteorological yield of the sunflower, and providing technical support for guaranteeing the supply and demand balance of the sunflower market in China.

Description

technical field [0001] The present invention relates to the field of economic crop yield prediction, and more particularly, relates to a method and system for determining the meteorological yield of sunflower. Background technique [0002] Sunflower yield is usually divided into biological yield and economic yield. Biomass, referred to as biomass, refers to the total amount of various organic substances produced and accumulated by sunflowers through photosynthesis and absorption, that is, through the transformation of matter and energy, in each growth cycle. Root systems are usually not included in the calculation of biomass. Economic yield refers to the amount of harvested sunflower seeds required for cultivation purposes, which is generally referred to as yield. Usually, the level of economic output is directly proportional to the level of biomass. [0003] The length of the sunflower growth period is not only mainly determined by the heredity of the sunflower, but also ...

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Problems solved by technology

[0007] In order to solve the technical problem in the prior art that only considering the influence of the climate conditions of the whole growth cycle on the meteorological yield of sunflowers and unable to timely and accurately predict the fluctuations of the meteorological yields of sunflowers under the climate conditions, the present invention provides a method for determining the meteorological yields of sunflowers. Methods include:

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