贵阳市桃树“3414”肥效试验分析

Study of “3414” Fertilization on Peach in Guiyang

通过在高、中、低肥力水平条件下,开展的桃树"3414"肥效试验的产量数据研究,运用农业部开发的"测土配方施肥3414试验分析器"分析处理,经分析整理,得出艳红桃基地桃树田间肥效试验的桃树肥效效应模型方程:Y=b_0+b_1*N+b_2*N^2+b_3*P_2O_5+b_4*P_2O_5~2+b_5*K_2O+b_6*K_2O^2+b7*N*P_2O_5+b_8*N*K_2O+b_9*P_2O_5 P*K_2O,对桃树肥效效应模型方程的统计分析检验,F值分别为14.67、22.05和13.51(均大于F0.05=6),反映出这三个地块试验的桃树产量与氮、磷、钾肥施用量之间有显著的回归关系。进而测算出,低肥力地块:最大施肥量为氮肥20.62kg/667m^2、磷肥7.99kg/667m^2、钾肥27.65kg/667m^2,最佳施肥量为氮肥22.23kg/667m^2、磷肥14.69kg/667m^2、钾肥23.26kg/667m^2。中肥力地块:最大施肥量为氮肥19.162kg/667m^2、磷肥9.70kg/667m^2、钾肥23.09kg/667m^2。最佳施肥量为氮肥18.63kg/667m^2、磷肥8.48kg/667m^2、钾肥19.01kg/667m^2。高肥力地块:最大施肥量为氮肥15.26kg/667m^2、磷肥5.48kg/667m^2、钾肥16.88kg/667m^2。最佳施肥量为氮肥15.31kg/667m^2、磷肥4.93kg/667m^2、钾肥15.72kg/667m^2。

It carries out the production study of peach ＂3414＂ fertilizer effect experiment, under the condition of high, medium and low fertility level. Utilizing ＂3414＂ trial analyser of soil testing and formulated fertilization, through analyzing, processing and sorting, peach fertilizer efficiency model equation is obtained, which based field fertilizer trials of Yanhong peach：Y=b0＋b1＊N＋b2＊N2＋b3＊P2O5＋b4＊P2O5^2＋b5＊K2O＋b6K2O3＋b7＊N＊P2O5＋b8＊N＊K2O＋b9＊P2O5P＊K2O. Statistical analysis of peach fertilizer efficiency equationworks out that F = 14.67, 22.05, 13.51 separately （ all 〉 F0.05 = 6 ） , which shows a significant regres- sion relationship between the fertilizer application amount of nitrogen, phosphorus, potassium and peach yield in these three trial plots. From above, the further calculate indicates that, in the low fertility plots ： the maximum fertilizer application rate of nitrogen, phosphate and potash are 20.62kg/667m2 ,7.99kg/667m2, 27.65kg/667m2 and the optimum fertilizer application rate of nitrogen, phosphate and potash are 23.26kg/667m2, 14.69kg/667m2, 22.23kg/667m2 ; in medium fertility plots ： the maximum application amount of fertilizer for nitrogen 19. 162kg/667m2, phosphate 9.70kg/667m2, and potassium 23.09kg/667m2 , the optimum fertilizer application amount are 18.63 kg/667 m2, 8.48 kg/667 m2 and 19.01 kg/667 m2 separately; in high fertility plots ： the maximum application amount of fertiliz- er are nitrogen 15.26kg/667m2, phosphate 5.48kg/667m2 and potassium 16.88kg/667m2, while the optimum application rate are 15.31kg/667m/, 4.93kg/667m2 and 15.72kg/667m2.