Simulation Model of dry matter accumulation in peanut under different irrigation quantity
Water test was got in 2007. Controling the soil moisture content in yield forming stage.According to the analysis of the classical growth theory,established a peanut growth model under control the soil water.The model was studies by using one peanut cultivar Fenghua 1.A peanut pool-culture experiment under control of rain protection shed was carried out to keep relative soil water content of 0-30cm layer in 90％,70％,50％ in yield forming period. By measuring the dry matter accumulation and available water content in soil each treatments. Through regression analysis and curve fitting, dry matter accumulation dynamic accord with S-shaped curve, which can be expressed by logistic equation) W=Wm/(1+ae-bt).Then make use of it to establish respective dry matter accumulation dynamic model for different water levels. The derivation of equation is dry matter accumulation rate GR and relative growth rate RGR=GR/W. Make available soil water content in the three different water levels as variables to set up the fitted equations RGR=f（Wi，dj）=A+B1*Wi+B2*Wi∧2,which expressed the relation between relative growth rate and relative soil water content. Geting the corresponding parameters A,relation between relative growth rate and relative soil water content. Geting the corresponding parameters A,
Li Guang-hui Wan Yong-shan Liu Feng-zhen Zhang Kun Zhang Er-qun Sun Ai-qing Ma Deng-chao
Shandong Agricultural University,Post Code: 271018,Tai an,China Jining Academy of Agricultural Scie Shandong Agricultural University,Post Code: 271018,Tai an,China Jining Academy of Agricultural Sciences,Post Code: 272031,Jining,China
国际会议
北京
英文
1-5
2009-10-14（万方平台首次上网日期，不代表论文的发表时间）