Effect of nitrogen fertilization on the incidence of Fusarium oxysporum f. sp. Dianthi and Heterodera trifolii G. in carnation
Handling the fertilization is one of the methods that among with other controling ways can reduce the strength of some diseases; in this essay it was tested the effeet of the nitrogenated fertilization, using differents nitrogen sources allover the diseases; produced by the Fusarium oxysporumf. sp. dianthi and Heterodera trifolii G. Ammonium phosphate, potassium nitrate and Nitron 26 were used as nitrogen sources, and potassium sulfate was used as a paterno At the end of the test, beside of the pH variation, it was evaluated the Fusarium oxysporum f. sp. dianthi inoculus potential,the number of eysts and the viability of the Heterodera trifolii GI and the number of siek plants. The results with the potassium nitrate and potassium sulfate treatments, shown that the pH was inereased, while the treatments with Nitron 26 and ammonium sulfate gets the soil more aeid. When the treatments were finished it were seen less number of eolonies of Fusarium oxysporum f. sp. dianthi in the soils that where treated with potassium sulfate and potassium nitrate. The number of eysts and the viability of the Heterodera trifolii G. were not afected by the treatments. the bigest number of floral stems was obtained with the Potassium sulfatetreatment, and the smaller number with the ammonium sulfate treatment.
| Main Authors: | , , , |
|---|---|
| Format: | Digital revista |
| Language: | spa |
| Published: |
Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias
1990
|
| Online Access: | https://revistas.unal.edu.co/index.php/agrocol/article/view/21008 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|