Meteorological-condition-based construction method for annual grade region prediction model of output of Guiping litchis

Abstract

The invention discloses a construction method of a Guiping litchi yield big and small year type grade region prediction model based on meteorological conditions. The construction method comprises the following steps: step 1, collecting regional litchi yield big and small year type grade data; 2, determining meteorological data; step 3, meteorological index screening; 4, determining a prediction model; direct field management measures and standards can be provided for producers and managers, for example, when the daily minimum temperature in October of the last year is higher than 20 DEG C and the daily average temperature in February of the harvesting year is higher than 14 DEG C, a sunshade can be laid on the ground, the sunlight intensity is reduced, the temperature is indirectly reduced, and high yield is facilitated; through regulation and control of micro-meteorological conditions, it is completely possible that the yield per unit area is increased by 50% or above, and economic benefits are very huge; sunshade, irrigation, ground grass covering and other measures are conventional cultivation technologies in main litchi producing areas, and popularization and application are easy.

Description

technical field [0001] The invention relates to the technical field of quantitative prediction of yield of horticultural crops, in particular to a method for constructing a regional prediction model of Guiping litchi yield, size, year, type, and grade based on meteorological conditions. Background technique [0002] Litchi is one of the tropical and subtropical fruit trees that are most demanding on climatic conditions. Litchi is a perennial fruit tree, and the annual output fluctuation is mainly affected by the meteorological conditions in the production cycle. When the output is 100% in a large year, the output in a small year is less than 30%, that is, the maximum annual fluctuation of litchi output is about 70%. In the industry, the change in output between different years is called the phenomenon of fruit tree size year, that is, the output is high in a big year and low in a small year. Previous research results on the causes of fruit tree size years can be summarized ...

AI Technical Summary

Problems solved by technology

The problem of litchi production, year, year, type and grade has not been solved. The fundamental reason is that no key quantitative influencing factors have been found.

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