密度与肥料对泽泻产量的影响  

Effects of Density and Fertilizer on the Yield of Alisma plantago-aquatica

作　　者：彭志芸 刘小波 杜勇利 廖霏霏 熊湖 夏魁 李之兰 苟才明 张德银[1] PENG Zhi-yun;LIU Xiao-bo;DU Yong-li(Yibin Academy of Agricultural Sciences,Yibin,Sichuan 644000)

机构地区：[1]宜宾市农业科学院,四川宜宾644000 [2]宜宾市中医药科学研究所,四川宜宾644002 [3]宜宾学院,四川宜宾644007

出　　处：《安徽农业科学》2024年第20期52-55,64,共5页Journal of Anhui Agricultural Sciences

基　　金：宜宾市科技计划项目“‘水稻-泽泻’轮作模式关键技术研究与产业化示范”(2021ZYY004)。

摘　　要：[目的]探究密度和肥料的不同配比泽泻产量及其互作影响,筛选出科学的密肥水平,为泽泻规范化栽培提供理论依据和实践经验。[方法]以川泽泻为试验材料,采用4因素5水平二次正交旋转组合设计进行大田试验,建立密度、氮肥、磷肥、钾肥与泽泻产量的效应函数。[结果]建立的二次回归方程R^(2)=0.9097,所建立的数学模型拟合程度较为可靠。各因素对泽泻产量的影响为密度>氮肥>钾肥>磷肥,其中密度和肥料的互作效应达显著水平。根据统计频数选优,得到泽泻目标产量大于3300 kg/hm^(2)的最优农艺措施为密度14.69万~15.08万株/hm^(2)、氮肥219.10~234.50 kg/hm^(2)、磷肥124.80~150.00 kg/hm^(2)、钾肥152.55~179.55 kg/hm^(2)。[结论]合理的密度和肥料施用量均能有效提高泽泻产量,以密度增产效果最佳,氮肥次之,钾肥和磷肥的增产效果较小,在保障密度和氮肥的基础上,配合合理的磷钾肥能达到泽泻高产目标。[Objective]To explore the influence of density and fertilizer ratio on the yield and their interaction,and screen out the scientific dense fertilizer level,so as to provide theoretical basis and practical experience for the standardized cultivation of Alisma plantago-aquatica.[Method]The effect function of density,nitrogen fertilizer,phosphorus fertilizer,potassium fertilizer and the yield of Alisma plantago-aquatica was established by using four-factor and five-level quadratic orthogonal rotation combination design for field experiment.[Result]The quadratic regression equation R^(2) was 0.9097,and the mathematical model was reliable.The effect of each factor on the yield of Alisma plantago-aquatica Linn.was in the order of density>N>K>P,and the interaction effect between density and fertilizer was significant.According to the optimization of statistical frequency,the optimal agronomic measures for the target yield of diarrhea greater than 3300 kg/hm^(2) were obtained as follows:the density was 146900-150800 plants/hm^(2),nitrogen 219.10-234.50 kg/hm^(2),phosphorus 124.80-150.00 kg/hm^(2) and potassium 152.55-179.55 kg/hm^(2).[Conclusion]Both reasonable density and fertilizer application amount can effectively increase the yield of Alisma plantago-aquatica Linn.Density is the best,followed by nitrogen fertilizer,and potassium and phosphate fertilizer have less effect on increasing production.On the basis of ensuring density and nitrogen fertilizer,combining with reasonable phosphate and potassium fertilizer can achieve the goal of high yield of Alisma plantago-aquatica Linn.

关 键 词：密度 肥料 泽泻 产量 二次正交旋转组合设计 

分 类 号：S567.23[农业科学—中草药栽培]