|
Effect of bio-pesticide on controlling pest, disease, and yield of green onion under greenhouse conditions |
|---|---|
| รหัสดีโอไอ | |
| Creator | Nguyen K. Nghia |
| Title | Effect of bio-pesticide on controlling pest, disease, and yield of green onion under greenhouse conditions |
| Contributor | Huynh H. Hanh, Nguyen H. Thien, Nguyen T.K. Oanh, Le T. Xa |
| Publisher | Asia-Pacific Journal of Science and Technology |
| Publication Year | 2567 |
| Journal Title | Asia-Pacific Journal of Science and Technology |
| Journal Vol. | 29 |
| Journal No. | 1 |
| Page no. | 13 |
| Keyword | Biological control, Bio-pesticide, Garlic, Chili, Ginger, Green onion, Lemongrass, Soil microorganisms, Beneficial bacteria |
| URL Website | https://so01.tci-thaijo.org/index.php/APST |
| Website title | https://so01.tci-thaijo.org/index.php/APST/article/view/271279 |
| ISSN | 2539-6293 |
| Abstract | This study evaluated the effect of a spice bio-pesticide product derived from garlic, chili, ginger, onion and lemongrass on green onion pests and diseases, plant growth and yield, soil chemical properties and soil microbial populations under greenhouse conditions. A randomized design experiment with 13 treatments and two replications tested three different concentrations of the bioproduct at 8%, 6%, and 4% in combination with four different spray time intervals: every 3 days, every 7 days, every 10 days, and only at the appearance of pest/disease. The 6% bio-pesticide concentration sprayed every 10 days had the lowest anthracnose disease rate. The 4% bio-pesticide concentration sprayed every 7 days treatment compared to the control resulted in a 31.4% increase in yield of fresh green onions. The bio-pesticide increased soil pH in all treatments after two consecutive green onion crops compared to the control. Surveys of soil microorganisms after two consecutive crops showed the 4% bio-pesticide concentration significantly increased the number of soil bacteria such as beneficial nitrogen fixing bacteria, phosphate solubilizing bacteria and silicon solubilizing bacteria compared to the control. Bio-pesticide applications at any concentration reduced the soil fungal population; and had no effect on the actinomycetes population. While this bio-pesticide showed potential to biologically control green onion pests/disease, additional greenhouse and field experiments are needed to replicate the effects of this spice bio-pesticide application on yields and soil bacteria densities in different soil types and under different crop conditions. |
