|Table of Contents|

Method for Forecasting Soybean Yield Based on Logistic Equation(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2008年03期
Page:
414-419
Research Field:
Publishing date:

Info

Title:
Method for Forecasting Soybean Yield Based on Logistic Equation
Author(s):
JIANG Li-xia; NA Ji-hai; ZHU Hai-xia; HAN Jun-jie; JI Yang-hui; YAN Ping; WANG Ping; WANG Chen-yi;  LI Xiu-fen
Heilongjiang Provincial Institute of Meteorological Sciences，Harbin 150030，Heilongjiang，China
Keywords:
Soybean yield; Climate conditions; Dry matter accumulation; Forecast model
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2008.03.0414
Abstract:
The curve of soybean dry matter accumulation was founded to describe the process of soybean dry matter accumulation based on Logistic Equation.The climatic factors weren’t generally optimum state，so correct meteorological conditions to the process of soybean dry matter accumulation，and analyze the relationship between the accumulated quantity of crop dry matter and climatic yield.Base on above analysis to establish Agro-meteorological Yield Forecasted model.It was found that the correction coefficient of temperature and water varied with heat zones，years and developing stages，which indicate that temperature and water are both important limited factors affecting soybean growth as well as final yield.By using meteorological and yield data during 2004 to 2006 in main soybean production areas，the accuracy of forecasting reached 95.9％，and correlation between forecasted yield and official yield was well，which indicate that the forecasted yield of the model is accurate，and the model can be put into use.

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Last Update: 2014-10-08