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以氮肥和底墒为决策变量，采用最优二次Ｄ饱和设计，用Ｌｏｇｉｓｔｉｃ方程拟合各水肥处理的籽粒充实过程，并推导出一系列次级参数，分别建立了小麦籽粒灌浆强度与持续时间参数的数学模型。结果表明：生长在氮肥或底墒逆境条件下的小麦受精子房的生长潜势（Ｃｏ）较大，并随逆境条件的改善而降低；千粒重（Ｙｏ）与灌浆快增期（Ｔ）的长短、最大灌浆速率（Ｒ＿（ｍａｘ））和平均灌浆速率（Ｒ）无明显相关性，却与起始生长势、灌浆系数（Ｔ·Ｒ＿（ｍａｘ））高度正相关，并且千粒重与灌浆系数的相关性明显大于千粒重与起始生长势的相关性；氮肥和底墒对籽粒灌浆特性具有显著的调节作用。同时还阐述了调节这些参数的水肥栽培途径。
Taking nitrogen and soil moisture as the decision variables, the optimal second-order D-saturation design was adopted. Logistic equation was used to fit the grain filling process of various water and fertilizer treatments and a series of secondary parameters were deduced. The grain filling intensity and duration parameters Mathematical model. The results showed that the growth potential (Co) of wheat fertilized ovaries grown under adverse conditions of nitrogen fertilizer or endopyrous stress was large and decreased with the improvement of the adversity conditions. The effects of 1000-grain weight (Yo) and fast-growing period (T) There was no significant correlation between the maximum filling rate (R max) and the average filling rate (R), but positively correlated with the initial growth potential and the filling coefficient (T R max), and the correlation between 1000-grain weight and grouting coefficient Significantly greater than 1000-grain weight and initial growth potential of the correlation; nitrogen and soil moisture at the grain filling characteristics have a significant regulatory role. At the same time, it also elaborates the ways of water and fertilizer cultivation to regulate these parameters.