CN-117252280-B - Method, device, storage medium and processor for predicting crop growth period

CN117252280BCN 117252280 BCN117252280 BCN 117252280BCN-117252280-B

Abstract

The embodiment of the application provides a method, a device, a processor and a storage medium for predicting the growth period of crops. The method comprises the steps of determining crop varieties of crops to be predicted and a currently adopted cultivation mode, obtaining a plurality of standard heat accumulation values corresponding to the crop varieties and the cultivation mode, wherein the standard heat accumulation values correspond to each growing period of the crops of each crop variety under each cultivation mode, obtaining the average temperature and the sunshine duration of the crops to be predicted, respectively determining the predicted heat accumulation value of the crops to be predicted in each growing period according to the average temperature and the sunshine duration when the crops to be predicted are cultivated according to the cultivation mode, and determining the growing period corresponding to the standard heat accumulation value successfully matched with the predicted heat accumulation value as the growing period of the crops to be predicted. The technical scheme can quantify the influence of different cultivation modes on the temperature required by the growth of crops, and ensures that the growth period of the crops can be accurately predicted when the crops are cultivated by adopting different cultivation modes.

Inventors

FU TIANYU
JI YANBAO
DING LI

Assignees

中联智慧农业股份有限公司

Dates

Publication Date: 20260508
Application Date: 20220607

Claims (11)

1. A method for predicting crop growth, the method comprising: determining crop varieties of crops to be predicted and a currently adopted cultivation mode; Obtaining a plurality of standard heat accumulation values corresponding to the crop varieties and the cultivation modes, wherein the standard heat accumulation values correspond to each growing period of crops of each crop variety under each cultivation mode, and the growing period of the crops to be predicted at least comprises a first growing period, a second growing period and a third growing period; acquiring the average daily temperature and the sunshine duration of the crops to be predicted; respectively determining a predicted accumulated temperature value of the crops to be predicted in each growing period when the crops to be predicted are cultivated according to the cultivation mode according to the average daily temperature and the sunshine duration; determining the growth period corresponding to the standard temperature value successfully matched with the predicted temperature value as the growth period of the crops to be predicted; Wherein the average temperature and the sunshine duration are respectively determined when the crops to be predicted are cultivated according to the cultivation mode, the predicted accumulated temperature value of the crop to be predicted in each growth period comprises the following steps: determining a temperature difference between the average temperature and a preset temperature; determining a first predicted temperature value of the crop to be predicted in the first growing period according to the temperature difference value and a loss temperature value corresponding to the cultivation mode; determining a second predicted temperature value of the crop to be predicted in the second growth period according to the delayed temperature value, the sunlight duration and the temperature value corresponding to the maximum sunlight duration; Determining a third predicted temperature value of the crop to be predicted in the third growing period according to the temperature difference value; wherein the delay product temperature value is determined by formula (1): Formula (1) Wherein, the The delay accumulated temperature value is expressed, x is expressed as total days of growing period of the crops planted according to the first cultivation mode in the second growing period, Expressed as the i-th historical solar duration, Expressed as the maximum sunlight duration, m is expressed as the total number of days in the growth period of the crops planted according to the second cultivation mode in the second growth period, Representing the historical temperature difference of the crops planted according to the first cultivation mode in the second growing period, Representing the historical temperature difference of the crops cultivated according to the second cultivation mode in the second growth period; The temperature value corresponding to the maximum sunlight duration is determined by a formula (2): (2) Wherein, the Expressed as a heat accumulation value corresponding to the maximum sunlight duration, Expressed as a historical temperature difference of the crop cultivated according to the second cultivation mode during the second growth period, The delay accumulated temperature value is expressed, x is expressed as total days of growing period of the crops planted according to the first cultivation mode in the second growing period, Expressed as the i-th historical solar duration, Expressed as the maximum sunlight duration.
2. The method for predicting the growing period of crops according to claim 1, wherein the growing period of the crops to be predicted includes at least a first growing period, a second growing period and a third growing period, and the determining the predicted accumulated temperature value of the crops to be predicted in each growing period when the crops to be predicted are cultivated according to the cultivation method according to the average daily temperature and the sunshine duration includes: Determining a predicted accumulated temperature value of the crop to be predicted in a first growth period when the crop to be predicted is cultivated according to the cultivation mode according to the average daily temperature; Under the condition that the predicted temperature value of the first growing period is larger than the standard temperature value corresponding to the first growing period, determining the predicted temperature value of the crop to be predicted in a second growing period according to the sunshine duration; and under the condition that the predicted temperature value of the second growing period is larger than the standard temperature value corresponding to the second growing period, determining the predicted temperature value of the crop to be predicted in the third growing period according to the average daily temperature.
3. The method for predicting a crop growth period of claim 2, wherein determining a growth period corresponding to a standard product temperature value that successfully matches the predicted product temperature value as the growth period in which the crop to be predicted is located comprises: Under the condition that the predicted temperature value of the first growing period is smaller than or equal to the standard temperature value corresponding to the first growing period, determining that the predicted temperature value of the first growing period is successfully matched with the corresponding standard temperature value, and determining that the growing period of the crops to be predicted is the first growing period, or Under the condition that the predicted temperature value of the second growing period is smaller than or equal to the standard temperature value corresponding to the second growing period, determining that the predicted temperature value of the second growing period is successfully matched with the corresponding standard temperature value, and determining that the growing period of the crop to be predicted is the second growing period, or Under the condition that the predicted temperature value of the third growing period is smaller than or equal to the standard temperature value corresponding to the third growing period, determining that the predicted temperature value of the third growing period is successfully matched with the corresponding standard temperature value, and determining that the growing period of the crop to be predicted is the third growing period; and under the condition that the predicted temperature value of the third growing period is larger than the standard temperature value corresponding to the third growing period, determining that the crop to be predicted reaches the target growing state.
4. The method for predicting a growing period of crops according to claim 1, wherein in the case where the cultivation method is a first cultivation method, a loss accumulated temperature value corresponding to the first cultivation method is a first numerical value; when the cultivation mode is a second cultivation mode, the loss accumulated temperature value corresponding to the second cultivation mode is a second value, wherein the second value is a difference value between a historical temperature difference value of the historical crops cultivated in the second cultivation mode in the first growing period and a historical temperature difference value of the historical crops cultivated in the first cultivation mode in the first growing period; The method comprises the steps of selecting a preset temperature corresponding to a growing period, wherein the difference value of the historical temperature of crops in any growing period is the difference value between the average temperature of the crops in the historical day of the growing period and the preset temperature corresponding to the growing period according to any growing mode.
5. The method for predicting a crop growth period of claim 1, wherein for any historical solar duration, determining a value of the historical solar duration as the maximum solar duration if the historical solar duration is less than or equal to the maximum solar duration.
6. The method for predicting a growing period of crops of claim 1, wherein determining a second predicted temperature value for the crop to be predicted at the second growing period based on the delayed temperature value, the solar duration, and a temperature value corresponding to a maximum solar duration comprises: Determining a time length difference between the sunlight time length and the maximum sunlight time length; And determining a second predicted temperature value of the crop to be predicted in the second growing period according to the temperature value corresponding to the maximum sunlight duration, the duration difference value and the delayed temperature value.
7. The method for predicting crop growth as set forth in claim 6, wherein said second predicted product temperature value is determined by equation (3): G 2 = +(DL- ) G z (3) Wherein G 2 is represented as the second predicted product temperature value, Expressed as a maximum solar duration, DL expressed as the solar duration, Expressed as a heat accumulation value corresponding to the maximum sunlight duration, Expressed as the delay product temperature value.
8. The method for predicting a growing period of a crop of any one of claims 1 to 7, wherein the crop to be predicted is rice, the first cultivation mode is a direct seeding cultivation mode, and the second cultivation mode is a non-first cultivation mode.
9. A machine-readable storage medium having instructions stored thereon, which when executed by a processor, cause the processor to be configured to perform the method for predicting crop growth according to any one of claims 1 to 8.
10. A processor configured to perform the method for predicting crop growth according to any one of claims 1 to 8.
11. An apparatus for predicting crop growth, comprising a processor according to claim 10.

Description

Method, device, storage medium and processor for predicting crop growth period Technical Field The application relates to the field of agricultural production, in particular to a method, a device, a storage medium and a processor for predicting the growth period of crops. Background In the actual agricultural production process, accurately predicting the growth period of crops has important significance for crop yield evaluation and agricultural production management. With the continuous development of agricultural production modes, crop cultivation modes also show a diversified trend. Crops are generally cultivated in a light simplified cultivation mode such as direct seeding, mechanical transplanting, seedling throwing and the like. But the crops adopting different cultivation modes have obvious differences in terms of yield, tillering capacity, nitrogen fertilizer utilization rate and the like. For example, cultivation of crops by throwing seedlings or transplanting seedlings can damage roots of the crops to a certain extent, and may cause growth arrest of the crops. At this time, due to different cultivation modes of crops, the accumulated temperature required by the growth of the crops is also changed, and the growing period of the crops cultivated in the same period is also different. At present, the growth period of crops is generally predicted by constructing a heat accumulation model. However, the temperature required for each growth stage will be different due to the different cultivation modes of the crops. Therefore, the limitation of predicting the growth period of crops by adopting the heat accumulation model is large, and the influence of different cultivation modes on the heat accumulation required by the growth of the crops cannot be quantified, so that the current growth period of the crops is difficult to predict accurately. Moreover, the growth period of the crops is predicted by the accumulated temperature model, the prediction process is complicated, the time cost required by prediction is high, and the current growth period of the crops cannot be determined in time. Disclosure of Invention An object of an embodiment of the application is to provide a method, a device, a storage medium and a processor for predicting crop growth period. To achieve the above object, a first aspect of the present application provides a method for predicting a crop growth period, comprising: determining crop varieties of crops to be predicted and a currently adopted cultivation mode; Obtaining a plurality of standard temperature values corresponding to crop varieties and cultivation modes, wherein the standard temperature values correspond to each growth period of crops of each crop variety in each cultivation mode; acquiring the average temperature and the sunshine duration of crops to be predicted; Respectively determining a predicted accumulated temperature value of the crop to be predicted in each growth period when the crop to be predicted is cultivated according to a cultivation mode according to the average daily temperature and the sunshine duration; and determining the growth period corresponding to the standard heat accumulation value successfully matched with the predicted heat accumulation value as the growth period of the crop to be predicted. In the embodiment of the application, the growing period of the crops to be predicted at least comprises a first growing period, a second growing period and a third growing period, the predicted temperature value of the crops to be predicted in each growing period is determined according to the average daily temperature and the sunshine duration when the crops to be predicted are cultivated according to the cultivation mode, the predicted temperature value of the crops to be predicted in the first growing period is determined according to the average daily temperature when the crops to be predicted are cultivated according to the cultivation mode, the predicted temperature value of the crops to be predicted in the second growing period is determined according to the sunshine duration when the predicted temperature value of the crops to be predicted in the first growing period is larger than the standard temperature value corresponding to the first growing period, and the predicted temperature value of the crops to be predicted in the third growing period is determined according to the average daily temperature when the predicted temperature value of the crops to be predicted in the second growing period is larger than the standard temperature value corresponding to the second growing period. In the embodiment of the application, the growth period corresponding to the standard temperature value successfully matched with the predicted temperature value is determined to be the growth period of the crops to be predicted, wherein the method comprises the steps of determining that the predicted temperature value of the first growth period is successfully match