Organic Matter

Organic matter is the result of decomposition. Composted materials are organic matter. Humus is the stable endpoint of decomposition for organic material. Not a lot is known about humus, chemically. It is incredibly variable, so it’s hard to analyze. Basically it is the remaining resistant bits leftover after all of the easier to rot stuff […]

Cationic Exchange Capacity

The soil’s ability to store certain essential elements for plant growth is measured by its TOTAL CATIONIC EXCHANGE CAPACITY. Elements that are positively charged when in their ionic form are called cations. Here are the cationic elements of interest for plant growth: Calcium (Ca++) Magnesium (Mg+) Potassium (K+) Sodium (Na+)  Copper (Cu++) Iron (Fe+++) Manganese […]

Plant Nutrition 101

Essential Elements There are 13 essential elements for plant growth: 6 are considered Major Elements:  Nitrogen (N) Phosphorous (P) Sulfur (S) Potassium (K) Calcium (Ca) Magnesium (Mg) 7 are considered Micronutrients: Iron (Fe) Manganese (Mn) Copper (Cu) Zinc (Zn) Molybdenum (Mo) Boron (B) Chlorine (Cl) These elements are primarily taken up through the roots Root […]