Sources of Organic Fertilizers and Amendment
Sources of Organic Fertilizers and Amendment
Abstract:
Fertilizer is one of the most important things for agriculture & crop production. But here we go to discuss about the sources of organic fertilizers. Here we try to inform about different types of organic fertilizer and sources. We also like to discuss here about different structures and functions of organic fertilizer and soil amendment. We show a guide line; by that our farmer can improve production system through organic fertilizers.
Introduction about Fertilizer and Organic Fertilizer
Definition of Fertilizer:
Fertilizer (or fertilizer) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a soil to supply one or more plant nutrients essential to the growth of plants. A recent assessment found that about 40 to 60% of crop yields are attributable to commercial fertilizer use.
Mined inorganic fertilizers have been used for many centuries, whereas chemically synthesized inorganic fertilizers were only widely developed during the industrial revolution. Increased understanding and use of fertilizers were important parts of the pre-industrial British Agricultural Revolution and the industrial Green Revolution of the 20th century.
Inorganic fertilizer use has also significantly supported global population growth — it has been estimated that almost half the people on the Earth are currently fed as a result of synthetic nitrogen fertilizer use.
Proportions of Fertilizers:
Fertilizers typically provide, in varying proportions: six macronutrients: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S); seven micronutrients: boron (B), chlorine (Cl), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), and zinc (Zn).
Definition of Organic Fertilizer:
An organic fertilizer refers to a soil amendment derived from natural sources that guarantees, at least, the minimum percentages of nitrogen,
Abstract:
Fertilizer is one of the most important things for agriculture & crop production. But here we go to discuss about the sources of organic fertilizers. Here we try to inform about different types of organic fertilizer and sources. We also like to discuss here about different structures and functions of organic fertilizer and soil amendment. We show a guide line; by that our farmer can improve production system through organic fertilizers.
Introduction about Fertilizer and Organic Fertilizer
Definition of Fertilizer:
Fertilizer (or fertilizer) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a soil to supply one or more plant nutrients essential to the growth of plants. A recent assessment found that about 40 to 60% of crop yields are attributable to commercial fertilizer use.
Mined inorganic fertilizers have been used for many centuries, whereas chemically synthesized inorganic fertilizers were only widely developed during the industrial revolution. Increased understanding and use of fertilizers were important parts of the pre-industrial British Agricultural Revolution and the industrial Green Revolution of the 20th century.
Inorganic fertilizer use has also significantly supported global population growth — it has been estimated that almost half the people on the Earth are currently fed as a result of synthetic nitrogen fertilizer use.
Proportions of Fertilizers:
Fertilizers typically provide, in varying proportions: six macronutrients: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S); seven micronutrients: boron (B), chlorine (Cl), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), and zinc (Zn).
Definition of Organic Fertilizer:
An organic fertilizer refers to a soil amendment derived from natural sources that guarantees, at least, the minimum percentages of nitrogen,
References: www.wikipedia.org http://www.aboutorganics.co.uk/organic_gardening/organic_soil.htm http://www.wisegeek.com http://library.thinkquest.org ULAB Library & Books