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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (33): 55-59.doi: 10.11924/j.issn.1000-6850.casb17070059

所属专题： 园艺

• 林学 园艺 园林 • 上一篇    下一篇

密度及氮、磷、钾配比对苗用型大白菜产量的影响

代顺冬,韦树谷,叶鹏盛,黄玲,赖佳,张骞方,李琼英,曾华兰,华丽霞,蒋秋平,何炼,吴勇   

  1. 四川省农业科学院经济作物育种栽培研究所,四川省农业科学院经济作物育种栽培研究所,四川省农业科学院经济作物育种栽培研究所,四川省农业科学院经济作物育种栽培研究所,四川省农业科学院经济作物育种栽培研究所,四川省农业科学院经济作物育种栽培研究所,四川省农业科学院经济作物育种栽培研究所,四川省农业科学院经济作物育种栽培研究所,四川省农业科学院经济作物育种栽培研究所,四川省农业科学院经济作物育种栽培研究所,四川省农业科学院经济作物育种栽培研究所,理塘县农牧和科技局
  • 收稿日期:2017-07-13 修回日期:2017-07-28 接受日期:2017-08-24 出版日期:2017-11-27 发布日期:2017-11-27
  • 通讯作者: 叶鹏盛
  • 基金资助:
    四川省“十三五”育种攻关项目“突破性蔬菜育种材料与方法创新”(2016NYZ0033)；四川省科技创新苗子工程“密度及氮磷钾耦合效应对 苗用型大白菜产量和品质的影响研究”(2016RZ0021)；四川省应用基础计划“不结球白菜营养品质性状的遗传效应研究”(2016JY0139)。

Effects of Planting Density and NPK Fertilization Ratio on Seedling-use Chinese Cabbage Yield

吴勇   

  • Received:2017-07-13 Revised:2017-07-28 Accepted:2017-08-24 Online:2017-11-27 Published:2017-11-27

摘要： 为了解种植密度及氮、磷、钾肥用量对苗用型大白菜产量的影响。采用四元二次正交旋转组合设计，通过大田试验建立了苗用型大白菜产量与种植密度及氮、磷、钾肥用量因子的数学模型，并对各单一因素及两两因素的耦合效应进行了分析。结果表明：在其他因子为中间水平时，苗用型大白菜产量分别随种植密度、施氮量、施磷量、施钾量的增加先增加后减少。各试验因素对苗用型大白菜产量影响的大小排序为：施氮量(X2)＞种植密(X1)＞施磷量(X3)＞施钾量(X4)。交互效应表现为，种植密度与施氮量、种植密度与施磷量呈正交互作用，且种植密度与施氮量的交互效应大于种植密度与施磷量的交互效应。种植密度或氮、磷、钾肥用量过高或过低均不利于苗用型大白菜产量的增加，中等种植密度配施中量氮、磷、钾肥，有利于苗用型大白菜产量的增加。

Abstract: The effects of planting density (D) and fertilization ratio of nitrogen (N), phosphorus (P) and potassium (K) on yield of seedling-use Chinese cabbage were investigated by a field experiment, quadratic orthogonal regressive rotation design with four factors was used. A regression model of planting density and fertilization amount on seedling-use Chinese cabbage yield was established, single and coupling effects were analyzed. The results showed that if other factors were in medium level, the seedling-use Chinese cabbage yield first increased then decreased with the increase of planting density and NPK application rate. The order of each factor on yield was N (X2) ＞D(X1) ＞ P (X3) ＞ K (X4). There were positive interactions between planting density and N application rate, and between planting density and P application rate, and the interaction of planting density and N application was greater than that of planting density and P application. It was concluded that too high or too low of planting density or N, P and K application rate did not benefit the yield increase of seedling-use Chinese cabbage, and medium planting density and NPK fertilization could enhance the yield of seedling-use Chinese cabbage.