| 氮磷钾肥对烟草根结线虫病抗性研究 |
| |
| 引用本文： | 贾利华,文国松,李永忠,徐兴阳.氮磷钾肥对烟草根结线虫病抗性研究[J].农村实用技术与信息,2009(3):62-65. |
| |
| 作者姓名： | 贾利华 文国松 李永忠 徐兴阳 |
| |
| 作者单位： | [1]云南农业大学农学与生物技术学院,云南昆明650201 [2]云南农业大学烟草学院,云南昆明650201 [3]云南省昆明市烟草公司,云南昆明650051 |
| |
| 摘 要： | 通过对氮、磷、钾肥对烟草根结线虫病抗性研究表明，烟株的氮肥营养对该病有很好的抑制效果，充足的氮肥能明显推迟初始发病时间和降低整个生育期的病情。磷、钾肥营养对该病有一定的抑制效果，对推迟初始发病时间效果不明显，但可以适当减轻整个生育期的病情；田间进一步增施或减少磷、钾肥用量，对抑制该病的效果影响不明显。
|
| 关 键 词： | 烟草 根结线虫病 营养抗性 |
Preliminary Studies on the Resistance of N,P and K on Tobacco Root-knot Nematodes |
| |
| Institution: | JIA Li-hua, WEN Guo-song, LI Yong-zhong, XU Xing-yang (1.College of Agricultural and Biological Science, Yunnan Agricultural University, Kunming 650201, China; 1.College of Agricultural and Biological Science, Yunnan Agricultural University, Kunming 650201, China; 2.College of Tobacco Science, Yunnan Agricultural University, Kunming 650201, China; 2.Kunming Tobacco Company, Kunming 650051, China) |
| |
| Abstract: | Study on the resistance of N, P and K on tobacco root-knot nematodes showed that nitrogen nutrition of tobacco plant had a good control effect on the disease, and adequate nitrogen fertilizer could significantly delay the initial infection period and reduce the disease index during the growth and development periods. Phosphorus or potassium nutrition of the plants had a certain effect to con- trol the disease. They had not obvious effect to delay the initial infection period, but could reduce the disease index during the whole field stages compared with the blank control. The contents of phosphorus and potassium had no obvious effect on restraining the disease. |
| |
| Keywords: | tobacco root-knot nematode nitrogen phosphorus potassium |
| 本文献已被 维普 等数据库收录！ |
|
