Robert Wright

Organic Soil

Organic Soil Organic soil earthworms and other organisms improve soil structure and add nutrients. Organic gardening and farming methods use naturally occurring substances to maintain soil health. Biological cycles, such as decomposition, add nutrients and improve soil structure without the use of chemical fertilizers and pesticides. Organic soil should consist of 3 to 5 percent organic matter. Organic matter usually consists of 33... (posted by Robert 1 year 18 days ago.)

Organic Matter and Humus

Soil Matrix : Organic matter. 5% Mineral. 45 % Water. 25% and Air. 25% 2. Organic matter – Any material produced originally by living organisms (plant and animal) that is returned to the soil and goes through the decomposition process. A. Most originate from plants on the surface and from decaying foots... B. Plants are 60-90% moisture; the remaining dry matter consists of carbon, oxygen, hydrogen and small amounts... (posted by Robert 1 year 27 days ago.)

Metallic Trace Elements

Metallic trace elements, or micronutrients, play many roles in plants, many are difficult to describe without knowing the plant chemistry. Most micronutrients are classified by chemists as metals. These metal trace elements, with the exception of molybdenum. Soil molybdenum behaves very differently than these other metallic elements. Metallic trace elements interact with special molecules, called enzymes, that control important... (posted by Robert 1 year 49 days ago.)

Cobalt Deficiency

Atomic Number: 27 Atomic Symbol: C0 Electron configuration: [ Ar] 4 s 2 3d 7 Molecular Form of Cobalt (how plants take it up) The distribution of Co 2+ in plants is entirely species dependent. For example, it can be hardly detected in green beans and radishes, though it has been located in the leaves . The cobalt in leafy plants such as lettuce, cabbage, and spinach is relatively high (> o.6 ppm), whereas it varies widely... (posted by Robert 1 year 52 days ago.)

Silicon Deficiency

Silicon: Common and Familiar uses: Silicon chips are the basis of modern electronics and computing Silicon is alloyed with aluminum for use in engines because the presence of silicon improves metal's castability Silicon carbide is extremely hard and used in abrasives Silica in sand is used to make concrete and bricks Molecular Form: Silicon= (Si) Available to plants in the form of Silicic Acid, H4SiO4... (posted by Robert 1 year 54 days ago.)

Potassium Deficiency

Potassium: (K ) - Mobile Molecular form: (K+) Background: Potassium, often called potash, is a key nutrient. Plants consume more potassium than any other nutrient except nitrogen, and some plants such as Kentucky bluegrass, may use more. to help plants grow. No organic compound in a plant contains potassium, but many life processes need it. Potassium is dissolved in the plant fluids; as the major cell solute, it regulates... (posted by Robert 1 year 55 days ago.)