| Autor: |
Laabas, S., Boukirat, D., Chaker, H., Berber, F. |
| Předmět: |
|
| Zdroj: |
Agricultural Science Digest; Oct2022, Vol. 42 Issue 5, p598-603, 6p |
| Abstrakt: |
Background: Algerian agriculture, like many developing countries, has developed production systems based on the use of phytosanitary products. But today, the use of these products is called into question, with the awareness of the risks they can generate for agriculture, the environment and even for human health. Methods: A trial was conducted in the greenhouse on two varieties of pea (Pisum sativum), with and without thiram treatment (recommended dose), to estimate the effect of the latter on the establishment of symbiosis and biological nitrogen fixation. In addition, a rhizospheric soil microflora count was carried out to determine and assess the bacterial concentration including PGPRs in each sample from two varieties tested with and without treatment. Result: The fungicide treatment and variety choice have no effect on the number of nodules and the fresh and dry weight of the aerial and root parts and the low nodulation can be attributed to the low population of native rhizobia in the soil. A low bacterial concentration was observed in the rhizospheric region of the Gros Vert variety treated with the fungicide compared to the untreated control and Onward variety; this result may be due to the effect of fungicide thiram influencing the abundance of microflora in the soil and the differential response between cultivars of the same species. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
