Tag Archives: garden

Using micro climates

It’s important to realise that plants rely heavily on humidity. Their roots draw water and nutrients up from the soil to the leaves. Evaporation of the water at the leaves, creates the suction for more water to be drawn up from the roots. If it’s humid, the water evaporation rate drops and the plant gets […]

Symbiosis and fertility

So far we have focused on soil structure the chemicals. The trend today, is to take a piece of land, strip the top soil and build on the sub soil. Then to replace the top soil for landscaping, they bring in what they call “sandy loam”. This is usually mostly sand with minimal loam. It […]

Trace Elements

These are elements, that effect soil fertility but are present in tiny amounts, too small to measure without some very sophisticated equipment. Different trace elements favour different plants. We are still discovering what trace elements do in plants. In many cases they are present in such small amounts, it is hard to determine if they […]

Soil fertility – The NPK group – Nitrogen

Nitrogen To produce leafy growth plants need more nitrogenous compounds. Through photosynthesis they break these down to extract the nitrogen required to create leaf cells. This means they need a compound that is rich in nitrogen. Usually we use urea or ammonium sulphate based fertilisers to increase the nitrogen available for plants. Chicken manure is […]

Fertility and the NPK group – Potassium

Potassium Potassium is generally linked to seed, flowers and fruit production. It is highly soluble and easily leached out of the soil. For this reason is uis more common in sandy soils. Though it is present in manure in small quantities, it is much higher in ash. Primitive cultures discovered that burning off the vegetation […]

Fertility and the NPK group – Phosphorus

Phosphorus is usually associated with root growth. Plants grown in soils deficient in Phosphorus are usually stunted. Adding phosphate fertilisers to new plants is a common practise that produces rapid lush growth, however it does not increase the final yield in many cases. For this reason grazier farmers add superphosphate (or super as it is […]