摘要
为了研究利用温度估算冬小麦实时作物系数,通过分析2005-2006年冬小麦田间试验结果,研究了冬小麦叶面积与作物系数的变化规律,分3个阶段建立了利用积温估算冬小麦作物系数的数学模型。利用2010-2011年冬小麦田间试验资料对模型估算结果进行验证,结果表明模型具有较高的精度,能够满足实际预测的需求。
In order to study how to estimate the crop coefficient of winter wheat by using the temperature,based on the results of winter wheat field experiment from the year of 2005 to 2006,the change rules of winter wheat leaf area and crop coefficient are studied,the model for estimating crop coefficient of winter wheat according to the accumulated temperature is established in three stages.The results of the model are verified by using the data of field experiments in the year of 2010 to 2011.The verified results show that the model has high accuracy and can meet the needs of practical prediction.
出处
《节水灌溉》
北大核心
2015年第4期36-40,共5页
Water Saving Irrigation
基金
公益性行业(农业)科研专项经费项目(201203077-03)
关键词
作物系数
冬小麦
积温
叶面积
天气预报
crop coefficient
winter wheat
accumulated temperature
leaf area
weather forecast
