杂交紫长茄瑞丰3号优化栽培模式研究

Optimization of cultivation method for hybrid Chinese eggplant variety Ruifeng 3

【目的】研究不同施肥措施及栽培密度对茄子新品种瑞丰3号产量的影响,为瑞丰3号紫长茄高产栽培提供科学参考。【方法】采用"416-B"最优混合设计,探讨种植密度和氮、钾、磷肥施用量与瑞丰3号紫长茄产量、利润及产投比的关系,并建立三元二次回归模型,分析各因子对产量形成的影响及相互作用效应。【结果】4个因素对茄子产量影响的顺序依次为氮肥>钾肥>种植密度>磷肥,说明氮肥和钾肥施用量是制约紫长茄产量的主导因素。【结论】在该试验条件下,其最佳栽培措施是:施氮量297.33kg/ha,施钾量371.44kg/ha,施磷量95.68kg/ha,种植密度36908株/ha,紫长茄最优产量为100937.7±13239.5kg/ha。

[Objective]The present experiment was carried out to study the effect of different fertilizer application rates and planting densities on the yield of new hybrid Chinese eggplant variety Ruifeng 3 in order to develop high yielding cultivation techniques for Ruifeng 3. [Method]The optimal mixed design （416-B） was used to study the relationship between planting density, fertilizer application rate and yield, profits and ratio of output to input in Ruifeng 3. Furthermore, the impact of these parameters on each other was also analyzed by establishing mathematical regression model. [Result]Out of the four variable factors （N, P and K fertilizers and plant density）, N fertilizer showed maximum impact on the yield of Ruifeng 3, followed by K fertilizer, plant density and P fertilizer. Therefore, the N and K fertilizers were the main factors that affected the yield of Ruifeng 3. [Conclusion]The optimum yield （100937.7±13239.5 kg/ha） of Chinese eggplant variety Ruifeng 3 could be obtained by applying N, K2O and P2O5 @ 297.33, 371.44 and 95.68 kg/ha, respectively, with the planting density of 36908 plants/ha.