Caring for coffee trees after replanting

The first two years after replanting determine the survival rate and the framework of the new coffee orchard. Instructions on watering, shading, fertilizing, replanting, shaping and monitoring nematodes — root rot for replanted coffee trees.

Summary: Replanting does not end at the day of sowing. Coffee seedlings after replanting must overcome soil that has accumulated nematodes, mycorrhizal fungi and organic imbalance from the old orchard. If cared for in the first 24 months, the tree will survive but grow slowly, have a weak root system, and enter business late. This article guides the care schedule for the first and second year after replanting.

Applies to: Robusta coffee replanting orchards in Dak Lak, Dak Nong, Gia Lai, Lam Dong, Kon Tum.
Duration: The first 24 months after planting, lasting until the tree enters a stable basic structure.
Difficulty level: Medium. It is necessary to monitor each weak plant, do not care for it at the same time based on feelings.
Estimated additional costs: 25-50 million VND per hectare per year for irrigation, fertilizer, labor and replanting.

Goals for the first two years

The first two years after replanting have three goals:

Survival rate over 95 percent after the first dry season.
The roots develop well, not pulled back by nematodes or root rot.
Balanced tree frame, straight trunk, level 1 branches evenly distributed.

Don't rush to think about productivity. Early flowering in the second year is not a good sign if the trunk is small and the canopy is weak. Priority should be given to cultivating trees, not forcing them to grow fruit early.

January-March after planting

Watering keeps alive

After planting, the roots have not yet reached the new soil, so the tree is very sensitive to dryness:

Water lightly and evenly, don't let the bulbs dry out.
If planting at the beginning of the rainy season, still check after 5-7 days of intermittent rain.
Do not flood the basin. Seedlings are afraid of waterlogging and lack of oxygen in the roots.

Sunshade and windproof

Use temporary shade trees, nets or local materials to reduce harsh sunlight.
Cover moderately, do not leave the plant without light for a long time.
Check the tree after strong winds, rebuild the leaning tree.

Early replanting

After 30 days and 90 days, check the survival rate:

Dead tree, severe stunting, broken trunk, must be removed early.
Use seedlings of the same age or close in age to keep the orchard uniform.
Don't let the gap last beyond the second year.

First year

Fertilize lightly, divided several times

The first year the roots are still small, heavy fertilization can easily burn the roots. Principle:

Priority is given to decomposed organic matter, phosphorus, and antagonistic microorganisms.
Chemical fertilizer divided 4-6 times, low amount.
Apply when the soil is moist enough, cover lightly, avoid spreading close to the root.

Do not fertilize when the plant is wilting or the soil is dry. Water recovery first, fertilize later.

Weed management

Weeds compete for water and nutrients, but clearing the ground increases heat and erosion:

Clean around the base 50-70 centimeters in diameter.
Keep the grass low in the middle of the row if there is not strong competition.
You can plant legume cover crops in the middle of the row to retain moisture and improve the soil.

Monitor roots and nematodes

Every month, choose a few weak plants to check:

The leaves are yellow but the soil is still moist.
The tree wilts quickly after the sun.
Few hairy roots, roots with nodules or dark spots.

If many plants in the same area have symptoms, soil/root samples should be taken to check. Don't just add fertilizer because it's harder for diseased roots to absorb it.

Shaping the first year

The goal is to have a straight, strong main stem:

Tie the tree to the stake if it leans.
Prune excess shoots, shoots growing close to the base.
Keep the main body as strong as possible.
Do not let the tree have many branches low to the ground.

Baby coffee trees after replanting need a clear frame from the beginning. Repairing trees after 3-4 years takes much more effort.

The first dry season

The first dry season is the biggest test:

Card made of dry grass, straw, rotten coffee pods or clean organic materials.
Irrigate in shorter cycles than commercial crops, because the roots are still shallow.
Check the trees at the end of the row, the trees on high ground, and the trees near the wind because they usually dry first.
Do not stimulate flowers, do not let the tree grow fruit.

If there is a lack of water, priority should be given to keeping it alive and keeping the leaves. Losing one growing season can still be saved; If the tree dies, it must be replanted from the beginning.

Second year

Controlled nutritional gain

The second year the tree begins to increase its trunk and strong branches:

Increase the amount of N-P-K according to the plant's strength, divided 4-5 times.
Organic supplement for early rainy season.
Apply lime or dolomite if the pH is low, do not apply at the same time as nitrogen fertilizer.
Spray additional micronutrients if young leaves turn yellow and plants are slow to bud.

Create a canopy

Choose a strong main stem, keeping the appropriate height according to the variety and farming style.
The type of bud that crosses the stem.
Keep level 1 branches evenly distributed around the trunk.
Prune away weak branches, branches close to the ground, and diseased branches.

Do not allow early collection

Some plants may flower sporadically in the second year. Flowers/fruits should be removed if the tree is still weak:

Early fruit earns less money but slows the tree's growth.
Trees that are stressed are more likely to go into business later.
The orchard is not uniform because healthy and weak plants react differently.

Pest prevention

Main risks after replanting:

Nematodes: yellow plants, swollen roots, few hairy roots.
Root rot: roots are dark, smelly, plants wilt even though the soil is moist.
Termites: damage roots, especially orchards with old wood residue.
Root mealybug: locally yellow plants, white-layered roots.

Prevent by keeping soil drained, increasing organic matter, using antagonistic microorganisms properly, not allowing roots to become waterlogged and checking for weak plants early.

Monitor periodically

[ ] Survival rate after 30 days, 90 days, 12 months.
[ ] Tree height and stump diameter every 2 months.
[ ] Number of pairs of level 1 branches.
[ ] Area of yellow trees, withered trees, slow-growing trees.
[ ] Amount of irrigation water in the first dry season.
[ ] Number of replanted trees and causes of death.

Record each lot, not just the whole orchard. Replanting orchards often have local bad soil spots.

Common mistakes

Fertilize strongly to help plants grow quickly: young roots have not yet absorbed enough, easily burning roots and yellowing leaves.

Do not plant early replanting: late replanting trees have different ages, making it difficult to manage canopy and future productivity.

Skip checking for nematodes: trees die scattered for months before realizing it's too late.

Leaving the tree to grow fruit early: loss of tree strength, weak frame.

Clean the entire ground: hot soil, moisture loss, rainy season erosion.