Special Public Works Programmes - SPWP - Planting Trees - An Illustrated Technical Guide and Training Manual (ILO - UNDP, 1993, 190 p.): 4. Planting techniques: 4.4 Use of fertilizers

Special Public Works Programmes - SPWP - Planting Trees - An Illustrated Technical Guide and Training Manual (ILO - UNDP, 1993, 190 p.)

4. Planting techniques

		(introduction...)
		4.1 Digging the holes
		4.2 On-site distribution of the seedlings
		4.3 Planting
		4.4 Use of fertilizers

4.4 Use of fertilizers

For some species and on poor sites fertilizers may be needed. Manure can be used if only a few trees are being fertilized close to home. In plantations choose a well balanced complete chemical fertilizer containing nitrogen, phosphorus and potassium. If a chemical fertilizer is used, mix one tablespoon of fertilizer with the soil at the bottom of the planting hole. Direct contact between the roots and the fertilizer should be avoided as it would "burn" the roots. If 2,500 seedlings per hectare are treated with 1-2 tablespoons (about 20 grams) of fertilizer, one bag (50 kg) will be needed per hectare.

Planting cuttings

Planting branch cuttings

Planting stumps

1. Prune tap root and trim lateral roots

2. Place stump in prepared hole and fill up

3. Firm soil around stump. Allow 1-2 cm of shoot above ground.

Common mistakes during planting

Planting holes made too shallow.
Plants dry out during transport.
The soil is not firmed enough and air pockets lead to drying out of the roots.
Planting is carried out too late.
Roots are damaged during planting.
Roots are bent or twisted in the planting hole.
Containers are left on the seedlings.