- Company: Viet Giang Trading Service Co., Ltd.
- Name of production: Foliar fertilizer VIGI 01; VIGI 02; VIGI 03; VIGI 04
- Ingredient, uses: Macronutrients and micronutrients.
- Crops/soil types: rice, cabbage and tea on degraded soils, alluvial soils of the Red River, and yellow red soil on clay soil.
- Dosage used: for rice spray 3 times (1 kg / ha / time + 300 liters of water); for cabbage spray 3 times (1 kg / ha / time + 300 liters of water); for tea spray 4 times ((1 kg / ha / time + 300 liters of water).
- Stage implementation: 2014
- Results of testing fertilizer:
Crops/soil types |
Crop yield increases compared to Control |
Economic efficiency increases compared to Control
|
| Paddy Rice – Red River alluvial soil (quintal / ha) | 4,14-5,05 | 1,52-2,06 |
| Cabbage (tons /ha) | 2,36-2,96 | 7,55-9,64 |
| Tea – yellow red soil, (quintal / ha) | 10,87-14,50 | 1,19-3,07 |