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RESEARCHES OF OPTIMUM LEAF AREA INDEX DYNAMIC MODELS FOR RAPE(BRASSICA NAPUS L.)

文献类型： 外文期刊

作者： Cao, Hongxin 1 ; Zhang, Chunlei 1 ; Li, Guangming 2 ; Zhang, Baojun 2 ; Zhao, Suolao 3 ; Wang, Baoqing 3 ; Jin, Zhiqin 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm Res, Engn Res Ctr Digital Agr, Nanjing 210014, Jiangsu, Peoples R China

2.Chinese Acad Agr Sci, Inst Oil Corps Res, Wuhan 430062, Peoples R China

3.Northwest Sci Tech Univ Agr & Foresty, Yangling 712100, Shanxi, Peoples R China

关键词： rape;optimum LAI dynamic;models

期刊名称：COMPUTER AND COMPUTING TECHNOLOGIES IN AGRICULTURE II, VOLUME 3

ISSN：

年卷期： 2009 年

页码：

收录情况： SCI

摘要： The objectives of developing optimum leaf area index dynamic models for rape (OLAIDM) was to develop Rape Cultivation Simulation-Optimization-Decision Making System(Rape-CSODS), to design its planting, to regulate and control its growth and development, and to fulfill its high yield, good quality, high benefits and standard production eventually. The OLAIDM were developed based on field experiments with 3 cultivars, 6 sowing dates, 2 types of plant pattern and 4 sites from 2002 to 2007 in middle and lower valley of Yangtze river in China and relative data from references of rape researches, employed ideas of R/WCSODS (Rice/Wheat Cultivation Simulation-Optimization-Decision Making System), and in the same time, the OLAIMR and its parameters also were assessed, calibrated and tested. The average absolute deviation(de), correlation coefficients(r) and the standard errors of their absolute deviation(Sde) of between the observed and simulated values for LAI of two cultivars in Wuhan and Nanjing were -0.03 similar to 0.1533, 0.9707 similar to 0.9997 and 0.1332 similar to 0.4032, respectively. 1: 1 line of them were in Fig. 1 to 4. Multi-factors such as the ramification types, cultivars, and light et al. were taken into account in this study, therefore, the OLAIDM with general adaptability, clear yield aim, mechanism, and dynamic characteristic can simulate optimum LAI dynamic for rape under different sites, cultivars and ramification types, and yielding levels.

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