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A method for predicting the risk of wheat head blight

A technology for wheat scab and scab, applied in forecasting, instrumentation, data processing applications, etc., can solve problems such as low rainfall and unsuitable temperature, and achieve the goal of ensuring normal growth, simple and convenient operation, and simple forecasting process. Effect

Active Publication Date: 2021-02-09
CROP INST ANHUI PROV ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual forecasting process, the year when the head blight occurs is often predicted in the early stage, and the head blight epidemic did not occur in the later period because of low rainfall and unsuitable temperature.

Method used

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Experimental program
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Embodiment Construction

[0016]The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0017]A method for predicting the risk of wheat head blight, including the following steps:

[0018]Step S1: Divide wheat planting areas according to the types of wheat varieties and ecological climate in different producing areas;

[0019]Step S2: According to the actual production and the infection law of the scab pathogen, the expansion period of wheat scab infection is established from 10 days before flowering to 30 days after flowering, so the scab is divided: the infection period is early and mid April ; Expansion period from late A...

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Abstract

The invention discloses a method for predicting the occurrence risk of wheat scab, which divides wheat planting areas according to wheat variety types and ecological climates in different producing areas; The period is about 10 days before flowering to 30 days after flowering, so the head blight is divided: the infection period is early and mid-April; the expansion period is late April-early and mid-May; the infection risk coefficient of the infection period ( IRC) calculation; the calculation of the extended risk coefficient (ERC) in the expansion period; calculate the total risk coefficient (TRC) of scab occurrence according to the infection period risk coefficient and the expansion period risk coefficient; The occurrence or non-occurrence of head blight was judged. The invention can accurately predict the risk of scab occurrence in wheat, so as to timely prevent and treat the wheat against the risk of scab occurrence in wheat, which is beneficial to popularization and application.

Description

Technical field[0001]The present invention relates to the technical field of forecasting wheat head blight, in particular to a method for predicting the risk of wheat head blight.Background technique[0002]Fusarium head blight is a typical "weather type" disease. The high incidence period is around the flowering and heading period of wheat (late April to early May). During this period, it is humid, rainy and warm (ie, spring temperature is higher than 12℃, humidity is higher than 50 %), it is very easy to cause the prevalence of Fusarium head blight pathogen. According to the epidemiological theory of plant diseases and insect pests, the occurrence of diseases and insect pests is comprehensively affected by the three factors of pathogen, host and environment, and its development reflects the biological process of pathogen reproduction and amplification and the spatiotemporal process of transmission and diffusion. Therefore, the overall performance is A complex and dynamic process. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/02A01G22/20
CPCA01G22/20G06Q10/04G06Q10/0635G06Q50/02
Inventor 何贤芳赵莉汪建来刘泽
Owner CROP INST ANHUI PROV ACAD OF AGRI SCI