Gauteng Smallholder September 2016 | Page 31

From page 27 ARBOR MONTH effect. Mulch the surface of the basin and plant seeds or seedlings on the inside of the ridge, in circles. It is extremely important to keep the beds well mulched as this prevents water loss by evaporation. Plant your young tree in the centre of this basin. Firm it in well and then water. Stake the tree with a simple post placed as close to the trunk as possible and secure the tree to it using a piece of nylon stocking or plastic so that it is held fairly firmly but can still move a little with the wind. Movement of the trunk in the wind Make the hole square, not round, to encourage the roots to grow outwards. strengthens its base partially decomposed and leads to a stronger root compost. If you have no system. Avoid using material objection to using animal such as wire because it has products in your soil, add a no “give” and will cut into few generous handfuls of the trunk as the tree grows. bone meal. The sponge effect is mainFill the hole by adding an tained by planting a one eight-centimetre (four fingers) metre piece of plastic piping layer of subsoil followed by a next to the tree, or a large two-centimetre layer (one plastic bottle with small holes finger) of compost (or wellburnt into the bottom with a rotted kraal manure, kitchen hot needle (or alternatively a waste or dry grass). Water tin can with holes in the these two layers well and bottom) into which water continue adding layers of can be poured so that the subsoil and compost until it water is sunk deeply into the has all been replaced. soil. Then add the top soil, Last, but not least, mulch the layering it with compost just surface of the hole to prevent as you did with the subsoil. the evaporation of water. The surface of the filled hole As they grow, water the trees will be slightly higher than regularly ~ deep watering is the surrounding ground. By essential to encourage good adding organic matter and root systems – until they are watering each level in turn, a well-established. sponge effect is created that Give your tree a few will retain water below the handfuls of bone meal every surface so that plant roots are spring and a good layer of encouraged to grow downcompost or manure around wards, giving them greater its base in autumn. strength. Remove dead and diseased Surface watering tends to wood and prune away make plant roots stay near overcrowded branches, or the surface. those that are growing Scoop the soil from the towards the centre of the centre of the circle to the tree. outside to create a basin Making the hole square encourages the tree's roots to push on out into the virgin soil when they encounter one of the four corners. By contrast, roots in a round hole tend simply to grow round the sides of the hole and don't venture out into the virgin soil. Break up the subsoil at the bottom of the hole and work in plenty of organic matter – dry grass, straw, manure, 29 www.sasmallholder.co.za