Kỹ Thuật Cải Tạo Rễ Cà Phê Mùa Khô & Chống Sâu Bệnh
Updated: 3/17/2026
Farming Techniques
Dak Lak Market
Dữ liệu chính thức
Dak Lak Benchmark (Robusta)
90,400đ/kg₫/kg
-200
1. Biểu hiện hệ rễ suy yếu mùa khô
Prolonged dry seasons cause the surface root layer (0-30cm deep) - which absorbs 80% of the coffee plant's nutrients - to dry out and suffer severe damage. Without protection, feeder roots die, creating open wounds for nematodes and fungi to attack when the rains arrive.
Healthy feeder roots under a protective organic mulch layer.
2. Kỹ thuật ép xanh và tưới tiêu sinh học
The core solution is 'Green Mulching'. Utilizing crop residues and trimmed weeds to cover the plant base, combined with bio-irrigation (using Indigenous Microorganisms - IMO) to decompose this organic layer into humus. Strictly avoid deep tilling which cuts roots during this period.
Mealybug and Cicada Warning
The dry season is when root-sucking mealybugs and cicada larvae outbreak. When watering, combine with bio-pesticides (Metarhizium, Beauveria) injected straight into the root zone to destroy them.
3. Giải đáp thắc mắc thường gặp (FAQ)
Why do coffee leaves still wilt in the dry season despite heavy watering?
Because the surface root layer has been damaged by high temperatures and lack of organic mulching. The water evaporates quickly, or the roots can no longer absorb it. Mulching and drip irrigation are long-term solutions.
When do root-knot nematodes thrive?
Nematodes usually outbreak during the season transition (from dry to wet) when soil moisture changes suddenly. Improving soil looseness and applying bio-lime in the dry season helps early prevention.
Discuss with experts and farmers
FT
Farmer Hoang Tam
2 days agoVery useful article. I tried using Trichoderma compost instead of inorganic fertilizer this dry season, and the feeder roots are growing white under the bio-mat.