Organic fertilizers are fertilizers derived from animal matter , animal excreta manure , human excreta , and vegetable matter e. In contrast, the majority of fertilizers used in commercial farming are extracted from minerals e. Organic agriculture, a system of farming, allows for certain fertilizers and amendments and disallows others; that is also distinct from this topic.

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The main organic fertilizers are, peat , animal wastes often from slaughter houses , plant wastes from agriculture, and treated sewage sludge. By many definitions, minerals are separate from organic materials.

However, certain organic fertilizers and amendments are mined, specifically guano and peat. Other mined minerals are fossil products of animal activity, such as greensand anaerobic marine deposits , some limestones fossil shell deposits , and some rock phosphates fossil guano. Peat, a precursor to coal, offers no nutritional value to the plants, but improves the soil by aeration and absorbing water. It is sometimes credited as being the most widely use organic fertilizer and by volume is the top organic amendment. Animal sourced materials include both animal manures and residues from the slaughter of animals.

Manures are derived from milk-producing dairy animals , egg-producing poultry , and animals raised for meat and hide production. These by-products of animal slaughter, mostly inedible -- blood, bone, feathers, hides, hoofs, horns, -- can be refined into agricultural fertilizers including bloodmeal , bone meal [1] fish meal , and feather meal. Producing only one colour; lp sodium lamps are monochromatic. A protective covering of organic compost, leaves. Localized death of a plant part.

Tubular glass end of the hid bulb, a1tached to the threads. Plant food, essential elements N-P-K, secondary and trace elements fundamental to plant life. A law that expresses the strength of an electric current; volts times amperes equals watts. Made of, or derived from or related to living organisms. In agriculture organic means "natural. A plant's egg found within the calyx, it contains all the female genes; when fertilized, an ovule will grow into a seed. Tasteless, colorless element, necessary in soil to sustain plant life as well as animal life.

Organism that lives on or in another host organism; fungus is a parasite PEAT: Partially decomposed vegetation usually moss with slow decay due to extreme moisture and cold. A plant, such as a tree or shrub, which completes its life cycle over several years. A scale from 1 to 14 that measures the acid to alkaline balance of a growing medium or anything ; in general plants grow best in a range of 5. Electronic instrument or chemical used to find where soil or water is on the pH scale. The study of light, especially color. Internal bulb coating that diffuses light and is responsible for variations in color outputs.

The relationship between the length of light and dark in a 24 hour period. The building of chemical compounds carbohydrates from light energy, water and carbon dioxide. The specific movement of a plant part towards a light source. The substance in paint or anything that absorbs light, producing reflecting the same color. Fine, dust like micro- spores containing male genes. Interruption or change in intensity of electricity. Alter the shape and growth pattern of a plant by cutting stems and shoots. Plastic polyvinyl chloride pipe that is easy to work with, readily available and used to pipe water into a garden room.

Natural insecticide made from the blossoms of various chrysanthemums. Roots stifled or inhibited from normal growth, by the confines of a container. Their purpose is to anchor a plant and provide a means in which to feed and hydrate a plant. Restore youth; a mature plant, having completed its life cycle flowering , may be stimulated by a new 18 hour photo period, to rejuvenate or produce new vegetative growth. Crystalline compound that results from improper pH or toxic buildup of fertilizer.

Salt will burn plants, preventing them from absorbing nutrients. Calcium Ca and magnesium Mg. A dry calyx containing a mature or maturing seed. Condition that results when wires cross and form a circuit. A short circuit will blow fuses.

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Threaded, wired receptacle for a bulb. Able to be dissolved in water. Seed like offspring of a fungus. Length in feet times width equals square feet. Complex carbohydrate; starch is manufactured and stored in food. Make sterile super clean by removing dirt, germs and bacteria. A quick pulsating or flashing of a lamp.

A physical or chemical factor that causes extra exertion by plants; a stressed plant will not grow as well as a non stressed plant. Small mouth like or nose like openings pores on leaf underside, responsible for transpiration and many other life functions; the millions of stomata, must be kept very clean to function properly. Food product of plant. Carbohydrates that contain hydrocarbon chain.

Organic fertilizer

Production of a substance, such as chlorophyll, by uniting light energy and elements or chemical compounds. The main or primary root that grows from the seed; lateral roots will branch off the tap root. Warm 70 to 80 degrees F 21 to 27 degrees C ; always use tepid water around plants to facilitate chemical processes and ease shock.


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Bud at the growing end of the main st TDS: Cull or weed out very slow growing seedlings. A device in the ballast that transforms electric power from one voltage to another. Give off water vapor and by products via stomata and carbon dioxide intake at the leaves. Frame or netting lattice that trains or supports plants. Of or pertaining to a species having male, female, and hermaphrodite flowers on different plants. A heavy, hard metal with high melting poin which conducts electricity well; tungsten is used for a filament in tungsten halogen and incandescent lamps.

Light with very short wave lengths, out of the visible spectrum, pass the blue-violet. Strain, phenotype see strain. Opening such as a window or door that allows the circulation of fresh air. Circulation of fresh air, fundamental to a healthy indoor garden, an exhaust fan creates excellent ventilation. Compourd that reduces the droplet size and lowers the surface tension of the water, making it wetter. Part of a passive hydroponic system using a wick suspended in the nutrients solution, the nutrients pass up the wick and are absorbed by the medium and roots.

These benefits are both complementary and cumulative in overall effect on site health. Organic pest control and biological pest control can be used as part of integrated pest management IPM. However, IPM can include the use of chemical pesticides that are not part of organic or biological techniques. One controversy associated with organic food production is the matter of the amount of food produced per acre.

Even with good organic practices, organic agriculture may be five to twenty-five percent less productive than conventional agriculture, depending on the crop.

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Much of the productivity advantage of conventional agriculture is associated with the use of nitrogen fertilizer. Organic methods have other advantages, such as healthier soil, that may make organic farming more resilient, and therefore more reliable in producing food, in the face of challenges such as climate change. As well, world hunger is not primarily an issue of agricultural yields, but distribution and waste. From Wikipedia, the free encyclopedia. The Forest Farms of Kandy: And Other Gardens of Complete Design.

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Biodynamic agriculture List of organic gardening and farming topics Vegan organic gardening.

Horticulture Source - Glossary of Horticultural Terms

Boron deficiency Calcium deficiency Iron deficiency Magnesium deficiency Manganese deficiency Molybdenum deficiency Nitrogen deficiency Phosphorus deficiency Potassium deficiency Zinc deficiency Micronutrient deficiency Chlorosis Fertilizer burn. Nitrogen assimilation Phosphorus assimilation Sulfur assimilation Microbial assistance Photorespiration. Soil fertility Nutrient pollution Soil pH Agrobiology.