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ORANGE - SON LA
Location: Van Phuc Yen village, Muong Thai commune, Phu Yen, Son La
Time: Feb 2021- Dec 2021
Varieties: Local Oranges
Total area: 1.2ha; 0.5ha of using PGP and 0.7ha of control
Foliar fertilizer Plantagreenpower PGP is sprayed 3 times at the following times:
- 1st spray: After harvesting
- 2nd spray: When the plant is dividing flower buds
- 3rd spray: When the fruit is the size of little finger
The garden was completely restored when using PGP Foliar Fertilizer.
Evaluation of plant growth and development, quality of fruits:
| PGP group | Control group |
Leaf color | Dark green, thick and glossy, leaf plate larger than control. Both stems and roots show strong signs of recovery. | light green and thin, with signs of yellowing of leaves and weak plants. |
Quality of fruits | With the area using PGP foliar fertilizer, the fruit was greener, fresher, more uniform and more beautiful than the control, the young fruit was less likely to fall. Sweetness: 16 Brix | The fruit has thick and dry skin. Sweetness: 13.5 Brix |
1. Sensory evaluation: plants grow well, trees have dark green, thick and glossy leaves until harvest; uniformly developed fruit, glossy skin, more beautiful than the control (light green leaf color, signs of yellow leaves)
2. Harvested fruit quality: beautiful appearance, succulent fruit, sweeter than the control (high percentage of young fruit, thick and dry skin; only half ripe fruit)
3. Sweetness: measure Brix at random: 16 in PGP garden, 13.5 . in control
4. Actual yield: the average yield of the PGP group was 6578 tons/ha, the control group was 5295 tons/ha.
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