Construction method of Shatian pomelo sugar degree area forecasting model based on meteorological conditions

Abstract

The invention discloses a construction method of a Shatian pomelo sugar degree area forecasting model based on meteorological conditions. The construction method comprises the following steps: step 1, preparing Shatian pomelo sugar degree annual data; 2, preparing meteorological data; 3, determining a Shatian pomelo sugar degree area forecasting model; and 4, indexes and discrimination methods meeting the requirements of the big year and the partial big year are as follows: (a) the average relative humidity in one month is less than or equal to 67%; (b) precipitation in May is greater than or equal to 300mm; (c) the average relative humidity of August to October 15th is smaller than or equal to 67%. The Shatian pomelo sugar degree area forecasting model based on the meteorological conditions is simple and practical, parameters are easy to obtain, and forecasting precision is high. The annual forecasting of the sugar degree of the regional Shatian pomelo can be realized on the basis of the model and the forecasting of the meteorological conditions entering the mature period every year, and field planting technology regulation and control and market price expectation are forecasted in advance; and on the basis of the Shatian pomelo sugar degree area forecasting model parameters, field facilities are set to regulate and control field micrometeorological conditions, and the optimal meteorological conditions are created for high-sugar-degree accumulation of the fruits.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a method for constructing a regional forecast model of pomelo sugar content in Shatian based on meteorological conditions. Background technique [0002] Take Shatian pomelo, a landmark crop in Meizhou, Guangdong, as an example. Although the cultivation technology is very mature, the output and quality are relatively stable. However, in terms of the quality represented by the sugar content, the sugar content in different years is extremely unstable. In some years, there are more fruits with a sugar content (% of soluble solids content) reaching more than 12%, and in some years the fruit with a sugar content of more than 12% There are fewer fruits, which directly affects the market price, the credibility of commodities and the protection of landmark brands. In this regard, the local agricultural technology extension department has been carrying out research on comprehensi...

AI Technical Summary

Problems solved by technology

However, in terms of the quality represented by the sugar content, the sugar content in different years is extremely unstable. In some years, there are more fruits with a sugar content (% of soluble solids content) reaching more than 12%, and in some years the fruit with a sugar content of more than 12% There are fewer fruits, which directly affects the market price, the credibility of commodities and the protection of landmark brands

In this regard, the local agricultural technology extension department has been carrying out research on comprehensive cultivation techniques for quality improvement for many years, but the results have been limited

The main reason is that the annual meteorological conditions, especially the meteorological conditions in the mature stage, directly affect the quality, and before analyzing the influence of the meteorological conditions on the quality, other factors such as site conditions, cultivation measures, etc. The impact results cannot reflect the real situation, because the latter is not the main factor affecting the sugar content. Any one condition or combination of multiple conditions in the existing cultivation technology cannot realize the sandy field of an area, a plot, and a tree. Forecast of pomelo sugar content, these conditions include site conditions, tree vigor, water and fertilizer management, yield (flower thinning, vegetable and fruit) control, field micro-meteorological condition control, etc.