夏谷种植密度与产量预测模型的研究  

Study on Prediction Model of Planting Density and Yield in Summer Sowing Foxtail Millet

作　　者：刘红霞 刘恩魁 刘环 张德荣 刘永平 侯升林[4] 宋银芳[4] 王新玉[4] 周汉章[4] 

机构地区：[1]深泽县职业技术教育中心,河北深泽052560 [2]武安市农牧局,河北武安056300 [3]深泽县农业局,河北深泽052560 [4]河北省农林科学院谷子研究所,河北石家庄050031

出　　处：《天津农业科学》2013年第2期78-82,共5页Tianjin Agricultural Sciences

基　　金：河北省科技支撑计划项目(09250307D);农业部公益性行业科研专项(20120304201)

摘　　要：采用田间小区试验和非线性回归分析的方法,对作物的密度与产量的经验模型进行模拟和比较。结果表明:二次曲线模型运算简洁、可操作性强,是模拟谷子密度与产量关系的最优模型。谷子种植密度对籽粒产量具有重要影响。谷子籽粒产量随着种植密度增加呈先升后降的趋势。The main density on erop yield empirical model, a few fitting models were simulated and eompared by employing field plot experiment and nonlinear regression analysis. The results showed that the summer sowing foxtail millet planting density on yield had important influence. The trend of foxtail millet grain yield with planting density increase was first increased then decreased. Through the model simulation and comparison, quadratic curve model operation concise, the maneuverability was strong ,was considered the optimal model that the foxtail millet density and yield relate.

关 键 词：谷子 种植密度 产量 预测模型 

分 类 号：S515[农业科学—作物学]