不同深度土壤肥力指标与黄瓜根结线虫病相关性分析

王宏宝; 曹凯歌; 毛佳; 吴险平; 赵桂东

doi:10.19303/j.issn.1008-0384.2019.10.013

不同深度土壤肥力指标与黄瓜根结线虫病相关性分析

doi: 10.19303/j.issn.1008-0384.2019.10.013

王宏宝^1,,
曹凯歌¹,
毛佳^{1, 2, ,},
吴险平¹,
赵桂东¹

1.
江苏徐淮地区淮阴农业科学研究所，江苏　淮安　223001
2.
淮安市农业科技实业总公司，江苏　淮安　 223001

基金项目: 淮安市自然科学研究计划项目（HAB201921）；江苏省环洪泽湖生态农业生物技术重点实验室项目（17HZHL016）；淮安市农业科学研究院科研发展基金（HNY201911）

详细信息

作者简介:
王宏宝（1982−），男，硕士，副研究员，研究方向：植物保护（E-mail：wanghongbao252@126.com）

通讯作者:
毛佳（1983−），女，研究方向：植物保护与土壤改良（E-mail：maojia525@163.com）

中图分类号: S 435
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出版历程
- 收稿日期: 2019-05-23
- 修回日期: 2019-07-30
- 刊出日期: 2019-10-01

Correlation Between Soil Fertility and Root-knot Nematode Disease on Cucumbers

1.
Huaiyin Agricultural Science Research Institute, Xuhuai District, Huai'an, Jiangsu　223001, China
2.
Huai′an Agricultural Science and Technology Industrial Co., Ltd., Huai′an, Jiangsu 223001, China

摘要

摘要: 目的了解设施黄瓜根结线虫病与不同深度土壤肥力指标相关性，为采用肥水管理等措施协同防控线虫病害提供参考。方法本试验通过测定设施黄瓜田中不同时期0～30 cm土层中pH值、速效氮、速效钾、全磷、全氮、有机质6个指标，研究黄瓜根结线虫病害与不同土层间土壤肥力指标变化的相关性。结果在定植128 、188 、218 d的3个时期，上层土速效氮、速效钾、全氮变化指标高于中下层土，指标差异达显著水平。相关性分析显示，土壤中全磷、速效钾、速效氮、pH的变化在不同土层中的相关性高，而土壤全氮变化在不同土层间的相关性低。土壤全磷变化显示，上中下各土层全磷变化与黄瓜病指呈显著负相关，相关系数为−0.842、−0.854、−0.869。土壤速效氮变化显示，上层土与黄瓜病指呈负相关，相关系数为−0.562。土壤速效钾、pH值、有机质变化显示，上层土3种肥力指标变化与黄瓜病指相关性低。结论土壤上中下各土层全磷含量变化和土壤中土层全氮含量变化2个肥力指标，与黄瓜根结线虫病情指数相关性高，达显著差异，土壤全磷和全氮含量变化对于指导黄瓜根结线虫病综合防控有一定参考价值。
- 土壤肥力 /
- 根结线虫 /
- 设施黄瓜
Abstract: Objective Correlation between the root-knot nematode disease on cucumber plants and the fertility of soils at different depths was investigated in a greenhouse to optimize the disease control. Method Soil fertility indicators including pH, available nitrogen, available potassium, total phosphorus, total nitrogen, and organic matters from surface to 30cm in depth during various cucumber growth stages were compared with occurrence of root-knot nematode disease on the plant for possible correlations. Result The available nitrogen, available potassium, and total nitrogen in the upper-layer of the soil were higher than those in the middle- or lower-layer in 128 d, 188 d, and 218 d after planting, with a statistic significance at P_0.05 level. Significant correlations were found on the total phosphorus, available potassium, available nitrogen, and pH, but not on the total nitrogen, in the soils at different depths. The total phosphorus in soil significantly inversely correlated to the disease on the cucumber plants with a correlation coefficient of −0.842 for the upper-layer, −0.854 for the middle-layer, and −0.869 for the lower-layer. On the available nitrogen, an inversed correlation was found between that in the upper-layer and the disease on the plants with a coefficient of −0.562. No significant correlation existed between the disease and the available potassium and pH relating to the upper-layer soil. Conclusion The total phosphorus and nitrogen in the soil highly correlated with the root-knot nematode disease and were considered relevant in preventing and controlling the disease on cucumbers.
- soil fertility /
- root-knot nematode disease /
- greenhouse cucumber

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图 1 不同时期土壤pH变化曲线

注：不同小写字母表示差异显著（P＜0.05），图2-6同.

Figure 1. Soil pH at different growth stages of cucumber plants

Note: Different lowercase letters showed significant difference (P＜0.05), the same as Fig.2-6.

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图 2 不同时期土壤速效氮变化曲线

Figure 2. Soil available nitrogen at different growth stages of cucumber plant

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图 3 不同时期土壤速效钾变化曲线

Figure 3. Soil available potassium at different growth stages of cucumber plants

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图 4 不同时期土壤全磷变化曲线

Figure 4. Soil total phosphorus at different growth stages of cucumber plants

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图 5 不同时期土壤全氮变化曲线

Figure 5. Soil total nitrogen at different growth stages of cucumber plants

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图 6 不同时期土壤有机质变化曲线

Figure 6. Soil organic matters at different growth stages of cucumber plants

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图 7 不同时期黄瓜病情指数变化曲线

Figure 7. Cucumber disease index at different growth stages of cucumber plants

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表 1 不同深度土层肥力指标相关性系数

Table 1. Correlation between soil fertility in different depths at different growth stages of cucumber plants

项目 Items	土壤全氮 Soil total nitrogen content				土壤全磷 Soil total phosphorus content				土壤速效钾 Soil available potassium content
项目 Items	上层土 Upper soil	中层土 Middle soil	下层土 Under soil	病情指数 Disease index	上层土 Upper soil	中层土 Middle soil	下层土 Under soil	病情指数 Disease index	上层土 Upper soil	中层土 Middle soil	下层土 Under soil	病情指数 Disease index
上层土 Upper soil	1	−0.223	0.147	0.037	1	0.963^**	0.862^*	−0.842^*	1	0.985^**	0.978^**	−0.354
中层土 Middle soil		1	0.475	−0.896^*		1	0.944^**	−0.854^*		1	0.973^**	−0.468
下层土 Under soil			1	−0.467			1	−0.869^*			1	−0.375
病情指数 Disease index				1			^*	1				1
注：*在0.01水平（双侧）上显著相关，在0.05 水平（双侧）上显著相关。表2同。 Note: *Significantly correlated at 0.01 level (both sides), Significantly correlated at the 0.05 level (both sides).The same as Table 2.

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表 2 不同深度土层肥力指标相关性系数

Table 2. Correlation analysis of soil fertility indices in different depths

项目 Items	土壤速效氮 Soil available nitrogen				pH值 pH value				土壤有机质 Soil organic matter
项目 Items	上层土 Upper soil	中层土 Middle soil	下层土 Under soil	病情指数 Disease index	上层土 Upper soil	中层土 Middle soil	下层土 Under soil	病情指数 Disease index	上层土 Upper soil	中层土 Middle soil	下层土 Under soil	病情指数 Disease index
上层土 Upper soil	1	0.844^*	0.960^**	−0.562	1	0.822^*	0.884^*	−0.028	1	0.911^*	0.739	0.253
中层土 Middle soil		1	0.899^*	−0.564		1	0.814^*	0.440		1	0.597	0.166
下层土 Under soil			1	−0.561			1	0.287			1	−0.306
病情指数 Disease index				1				1				1

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