Meteorological condition-based construction method for annual grade region prediction model of big and small years of yield of northern current litchis

Abstract

The invention discloses a meteorological condition-based construction method of a northern current litchi yield big and small year type grade region prediction model. The construction method comprises the following steps of 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; according to the technical application, direct field management measures and standards can be provided for producers and managers, for example, during December 1st to January 15th in the last year of harvesting, a reflective film or a thin film is laid for covering, and the sunlight intensity is enhanced; reflective films can be laid on the ground from May 1st to June 30th in the current year to increase the air temperature, short litchi trees can be covered with thin films when conditions exist, the sunlight intensity is increased, and meanwhile in the social benefit, the measures such as sunshade, irrigation and ground grass covering are conventional cultivation technologies in main litchi producing areas, and application and popularization are easy.

Description

technical field [0001] The invention relates to the technical field of quantitative prediction of horticultural crop yield, in particular to a method for constructing a regional prediction model of Beiliu 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 into ...

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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