Guidelines for the administration of durian nutrients by leaf stage

Guidelines for the administration of durian nutrients both through the soil, according to the leaf stage.

Maximizing the effective administration of durian nutrients should be adjusted according to the "leaf growth stage" so that the plant gets what it needs at the right time as follows:

1.Soft leaf pull stage (fish tail to sword blade stage) The goal is to speed up the breaking of new leaves to be uniform and elongate well.

* * Soil:

- Highlight fertilizers with high nitrogen (N), such as 25-7-7 or 15-0-0 (calcium nitrate) formulations to stimulate cell division.

- Add good quality organic fertilizer together to improve soil structure.

* * Leaf way:

- Amino: Helps reduce the energy consumption of the plant to make proteins.

- Extractive algae: Stimulate leaf bud.

- Secondary-supplemental nutrients: Specifically, zinc (Zn) helps in articulation and prevents glass leaf symptoms.

- Calcium-Boron (Ca-B): Keeps the cell wall healthy

2.Peslad leaf stage (leaves start to spread but do not age). The goal is to quickly intensify the large, thick and dark green spread leaves.

* * Soil:

- Always use formula fertilizers such as 15-15-15 or 16-16-16 to nourish both plants and roots.

* * Leaf way:

- Magnesium (Mg): Very necessary at this stage to form chlorophyll, making the leaves dark green.

- Calcium-Boron (Ca-B): Keeps cell wall healthy, leaves not distorted

- Iron (Fe) and manganese (Mn): help complete the photosynthesis process.

3.Leaf stage aging / food accumulation. The goal is to stop leaf growth to accumulate energy, prepare for flowering.

* * Soil:

- Focus on fertilizers with high phosphorus (P) and potassium (K), such as 8-24-24 or 9-24-24 formulas, to "accumulate food" and press nitrogen not to break new larvae.

* * Leaf way:

- Food Accumulation: Use high-end formula leaf fertilizer such as 0-42-56 or 0-52-34

- Boron (B): Special emphasis to assist in moving sugar to the branch belly, in preparation for flowering.

Constraint advantages of soil and foliar fertilization

* * * Soil fertilizer

- Advantages: Provide a large amount of nutrients and last a long time.

- Restrictions: Slow effect is seen (about 7-14 days) and depends on soil conditions. If the clay is too much or the pH is unsuitable, the plant will be absorbed.

* * * Leaf fertilizer

- Advantages: See the effect very quickly. It solves the problem of yellow or pale leaves from nutrient deficiency well.

- Restrictions: To be given in small quantities and to be sprayed more often than through the soil.

Caution:

* Leaf spraying should be done during the morning when the stomata are open and not too sunny.

* Check the soil pH to be in the range of 5.5 - 6.5 so that the roots fully absorb the nutrients put in.

# Agriculture # Durian fertilizer # Durian nutrients # Plant fertilizer # Durian fertilizer phase