High-quality rice planting area suitability evaluation method and application thereof

An evaluation method and suitability technology, applied in ICT adaptation, data processing application, rice cultivation, etc., to achieve high accuracy and fast evaluation speed

Pending Publication Date: 2021-07-09
INST OF CROP SCI CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Studies in the prior art have shown that the climatic conditions during the period of rice filling and fruiting are the most important ecological factors affecting rice quality, but at present there are few climate and ecological comprehensive evaluations on the

Method used

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  • High-quality rice planting area suitability evaluation method and application thereof
  • High-quality rice planting area suitability evaluation method and application thereof
  • High-quality rice planting area suitability evaluation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] This example provides a method for evaluating temperature and light parameters in areas suitable for planting high-quality japonica rice in Northeast China. The specific implementation steps are as follows:

[0087] 1. Determination of key growth periods and parameters

[0088] (1) Correlation between rice quality and temperature and light at each growth stage

[0089] In this example, the 5-year regional test data of one season of japonica rice in Northeast China is used to determine the climatic conditions such as temperature, light and water of various grades of high-quality rice, and the corresponding variety grades have been given in combination with the national standard grade standards. After correlation analysis, it can be known that the daily The average temperature and the maximum temperature have a high correlation with the appearance quality and processing quality of rice, and it is mainly reflected in 20 days and 30 days after full earing. Among them, the d...

Embodiment 2

[0142] This example provides a method for evaluating the parameters of temperature and light in areas suitable for planting high-quality japonica rice in southern China. The specific implementation steps are as follows:

[0143] 1. Determination of key growth periods and parameters

[0144] (1) Correlation between rice quality and temperature and light at each growth stage

[0145] After correlation analysis, it can be seen that the temperature of rice at 20 days and 30 days after full heading has a high correlation with the quality, and the effect is mainly 20 days after full heading. The daily average temperature of rice 20 days after full ear was significantly or extremely significantly correlated with the brown rice rate, polished rice rate, chalkiness, transparency and gel consistency of rice, and the highest temperature was mainly correlated with the polished rice rate, transparency and gel consistency. or very significant correlation, the lowest temperature is mainly c...

Embodiment 3

[0199] This example provides a method for evaluating the temperature and light parameters in a region suitable for planting high-quality medium indica rice in southern China. The specific implementation steps are as follows:

[0200] 1. Determination of key growth periods and parameters

[0201] (1) Correlation between rice quality and temperature and light at each growth stage

[0202] The results of correlation analysis showed that the daily average temperature, maximum temperature, and minimum temperature of 20 days and 30 days after full earing of rice were significantly or positively correlated with the chalky grain rate, chalkiness, and transparency of rice, and the average temperature after full earing The 20-day correlation coefficient is relatively high. There was no significant relationship between the polished rice rate, alkali elimination value and gel consistency and temperature and light parameters in each period. Therefore, in the southern indica rice region, ...

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Abstract

The invention relates to the field of rice planting, in particular to a high-quality rice planting area suitability evaluation method and an application thereof. The method comprises the following steps: obtaining a plurality of climate evaluation factors related to the quality of to-be-detected rice and weights of the climate evaluation factors; obtaining a suitable range value of each climate evaluation factor; aiming at each climate evaluation factor, taking the suitability as an evaluation factor, taking the weight as the weight of the evaluation factor, and constructing a rice planting comprehensive suitability evaluation model; obtaining the suitability degree through piecewise function analysis and comparison according to the suitability range value of each climate evaluation factor and the corresponding actual observation value in the target planting area; and evaluating the comprehensive suitability of the target planting area according to the rice planting comprehensive suitability evaluation model. The climate of the target rice planting area is evaluated through the rice planting comprehensive suitability evaluation model, and the suitable planting time and area of the high-quality rice can be quickly and accurately determined.

Description

technical field [0001] The invention relates to the field of rice planting, in particular to a method for evaluating the suitability of a high-quality rice planting area and its application. Background technique [0002] Rice is a cereal crop belonging to Oryza genus. According to the type of rice, it is divided into indica rice and japonica rice, early rice and middle and late rice, glutinous rice and non-glutinous rice, etc. At present, rice has become one of the main food crops, and the demand for high-quality rice is also increasing. [0003] The evaluation indicators of rice quality generally include rice milling quality, appearance quality, cooking and eating quality, nutritional quality, etc. The factors affecting these qualities are not only the genetic characteristics of the rice variety itself, but also the ecological environment is a key factor affecting the quality of rice, such as soil factors and climate factors. High-quality rice can only be achieved under su...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06F17/18G06Q50/02A01G22/22
CPCA01G22/22G06F17/18G06Q10/06393G06Q50/02Y02A90/10
Inventor 张俊张卫建陈长青邓艾兴宋振伟郑成岩
Owner INST OF CROP SCI CHINESE ACAD OF AGRI SCI
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