纸筒育苗移栽甜菜高产优质栽培试验的模糊分析

The blurred analysis on the tests of high yield and high quality in sugarbeet paper-pot and transplanting

本文对纸筒育苗移栽甜菜的４ 因素二次通用旋转试验设计结果进行了模糊处理， 即首先对根产量和含糖率指标进行了模糊量化合成， 再以上述两个指标的合成值与密度（ ｘ１） 、Ｎ（ ｘ２） 、Ｐ２ Ｏ５（ ｘ３） 、Ｋ２ Ｏ（ ｘ４） 施用量建立４ 因素对合成值的回归模型。对模型寻优结果表明，当密度在７９９２０ 株／ｈｍ２ ，施肥量分别为Ｎ １４１．５／ｈｍ２ 、Ｐ２ Ｏ５ １６２．５ｋｇ／ｈｍ２ 、Ｋ２Ｏ ５８ ．４ｋｇ／ｈｍ２ 时可获最高的根产量和含糖；模糊合成值与４ 因素关联度分析结果表明，其顺序为Ｒ１（ 密度） ＞ Ｒ３（Ｐ２Ｏ５） ＞ Ｒ２（ Ｎ） ＞ Ｒ４（Ｋ２ Ｏ） ，说明密度与根产量关系最为密切， 其次为施磷肥量。生产上应首先考虑建立一个合理的群体结构，然后增施磷肥，做到Ｎ、Ｐ、Ｋ 肥合理搭配。

The results were treated with blurred analysis by 4 factors and quadratic current spin design,lst give quantity composition on the index of root yield and sugar content, and then the composition value used to population (x1),application amount of N(x2),P2O5(x3),K2O(x4) and got the regression model,the best results shown that the highest root yield and sugar contet harvest with population 79920 plants/ha,amount of fertilizer applied:N 141.5kg/ha,P2O5 162.5kg/ha, K2O 58.4kg/ha, the result of connecting degree shown that which analysed by the blurred composition value with 4 factors, the order is that:R1(population)>R3 (P2O5)>R2 (N)>R4(K2O)which shown that the population and root yield have the closest relationship, the 2nd is amount of phosphate fertilizer applied.In the sugarbeet production, lst considered that the good structure have set up and the more P fertilizer added,adequate fertilizer to got the highest root yield and sugar content.