Kales Farming Program, Kales (Sukuma wiki) are among the most widely consumed vegetables in Kenya due to their fast growth, adaptability, and profitability. However, many farmers still struggle with low yields, pest damage, and poor leaf quality. To achieve consistent production, you need a structured farming program that guides you from land preparation to harvesting. This guide provides a practical kales farming schedule tailored for both small-scale and commercial growers.

1. Land Preparation

Soil Requirements

• Well-drained loam soil
• pH: 6.0–7.0
• Rich in organic matter

Preparation Steps

Start by ploughing the land deeply to break compacted soil. Afterward, incorporate 8–10 tons of well-decomposed manure per acre to improve soil structure and fertility. In addition, prepare raised beds for areas with poor drainage, as this reduces the risk of root diseases.

2. Seed Selection & Nursery Management

Recommended Varieties

• Sukuma Sawa
• Thousand Headed
• Collards Hybrid Varieties (F1)

These varieties offer uniform growth, strong vigor, and high leaf production.

Nursery Establishment

Begin by preparing a fine-textured nursery bed in a well-drained area. Mix topsoil with sand for aeration. Next, treat the nursery soil with an appropriate fungicide to prevent damping-off. Sow seeds evenly, apply a thin mulch layer, and water using a fine spray. Within 3–4 weeks, seedlings will be ready for transplanting.

3. Transplanting

Steps

Transplant seedlings when they reach 10–15 cm height. Water the nursery before uprooting to minimize transplant shock.
Spacing: 60 cm between rows × 45 cm within rows for open field production.

Pre-plant Treatments

Before transplanting, apply a phosphorus-rich fertilizer such as DAP or starter fertilizer to enhance root establishment. Additionally, consider applying termiticides in termite-prone zones to protect young seedlings. Using pre-emergent herbicides around the field (not directly on the crop) helps reduce early weed pressure.

4. Fertilizer Application Program

Establishment Phase (Week 1–3)

Apply NPK 17:17:17 at 50–70 kg per acre to support early root and leaf development.

Vegetative Growth Phase (Week 3–6)

Use CAN at 50 kg per acre. This nitrogen boost enhances leaf production, which is the primary economic part of the crop.

Continuous Leaf Production Phase

Apply top-dressing with Urea or CAN every 2–3 weeks depending on soil fertility.
Moreover, foliar feeds rich in micronutrients—such as calcium, magnesium, and manganese—help improve leaf color and quality.

5. Irrigation Management

Consistent moisture is required for leafy crops. For best results, use drip irrigation to provide uniform water while minimizing disease pressure. During dry seasons, irrigate at least twice a week. Avoid waterlogging, as it encourages fungal infections.

6. Weed Management

Kales compete poorly with weeds, especially during early growth. Therefore, apply pre-emergence herbicides after planting and use selective herbicides during crop development. Shallow hand weeding is recommended to avoid root damage.

7. Pest & Disease Management

Common Pests

• Aphids
• Caterpillars
• Diamondback moth
• Whiteflies

Common Diseases

• Downy mildew
• Black rot
• Leaf spot

Protection Schedule

Stage	Treatment	Purpose
Early growth	Preventive fungicide	Prevents damping-off & early diseases
Continuous	Insecticide rotation	Reduces aphids, moths & caterpillars
Mid–late	Systemic fungicides	Manages mildew & bacterial spots

Furthermore, rotating chemicals is crucial to prevent resistance buildup.

8. Harvesting

Begin harvesting 8–10 weeks after transplanting. Pick the lower leaves first, leaving younger leaves to continue growing. As a result, the plant maintains continuous production for several months.

Key Takeaways

• Strong nursery management ensures uniform seedlings
• Balanced fertilizer application boosts leaf size and quality
• Consistent irrigation prevents stress and bitterness
• Pest and disease rotation is essential for healthy crops
• Proper harvesting maximizes plant lifespan and yield

A well-defined kales farming program enables farmers to produce healthy, vigorous plants with high leaf yields throughout the year. By following each step clearly, farmers can reduce losses, improve quality, and enjoy consistent returns. Agriguard Agrovet remains committed to supplying high-quality seeds, fertilizers, herbicides, and crop protection products that support successful kales production.