Facts and Fancies about FERTILIZERS
The Secret Code ( N-P-K )
On a fertilizer bag, you will find three or four numbers with hyphens separating them. The numbers indicate, in order, the percentage of nitrogen (N), phosphorus (P), potassium or potash (K), and sulfur (S) - the letters in parentheses are the chemical symbols for the elements.
So, a 25-kg bag of 16-20-0-14 would provide (16/100 X 25 =) 4 kg of nitrogen, (20/100 X 25=) 5 kg of phosphorus, no potash, and (14/100 X 25 =) 3.5 kg of of sulfur. A 25 kg. bag of 34- 0-0 would supply 34/100 X 25 =) 8.5 kg of nitrogen but no other elements. A "complete" fertilizer contains nitrogen, phosphorus, and potash. If one of these three elements is missing, the fertilizer is not "complete."
Beside the major nutrients (N, P, K, S) there are also "micro- nutrients," or trace elements, which are needed by plants in very, very small amounts. But if these are missing, the plants will not be able to complete their life cycle. Among these micro-nutrients are iron, zinc copper, calcium, manganese, and magnesium. Most of these are present in adequate amounts in Saskatchewan soils. Complete house-plant fertilizers usually contain the major nutrients as well as the micro-nutrients. Read the label prior to purchase to ensure this.
Nitrogen (N)
* Nitrogen is a part of all living cells and is a necessary part of all proteins, enzymes and metabolic processes involved in the synthesis and transfer of energy.
* Nitrogen is a part of chlorophyll, the green pigment of the plant that is responsible for photosynthesis.
* Helps plants with rapid growth, increasing seed and fruit production and improving the quality of leaf and forage crops.
* Nitrogen often comes from fertilizer application and from the air (legumes get their N from the atmosphere, water or rainfall contributes very little nitrogen)
Phosphorus (P)
* Like nitrogen, phosphorus (P) is an essential part of the process of photosynthesis.
* Involved in the formation of all oils, sugars, starches, etc.
* Helps with the transformation of solar energy into chemical energy; proper plant maturation; withstanding stress.
* Effects rapid growth.
* Encourages blooming and root growth.
* Phosphorus often comes from fertilizer, bone meal, and superphosphate.
Potassium (K)
* Potassium is absorbed by plants in larger amounts than any other mineral element except nitrogen and, in some cases, calcium.
* Helps in the building of protein, photosynthesis, fruit quality and reduction of diseases.
* Potassium is supplied to plants by soil minerals, organic materials, and fertilizer.
* Essential plant food for production of protein.
* Promotes activity and development of enzymes and vitamins.
* Helps in chlorophyll formation.
* Improves root growth and seed production.
* Helps with vigorous plant growth and resistance to cold.
* Sulfur may be supplied to the soil from rainwater. It is also added in some fertilizers as an impurity, especially the lower grade fertilizers. The use of gypsum also increases soil sulfur levels.
The Macro-Nutrients
Calcium (Ca)
* Calcium, an essential part of plant cell wall structure, provides for normal transport and retention of other elements as well as strength in the plant. It is also thought to counteract the effect of alkali salts and organic acids within a plant.
* Sources of calcium are dolomitic lime, gypsum, and superphosphate.
Magnesium (Mg)
* Magnesium is part of the chlorophyll in all green plants and essential for photosynthesis. It also helps activate many plant enzymes needed for growth.
* Soil minerals, organic material, fertilizers, and dolomitic limestone are sources of magnesium for plants.
Sulfur (S)
* Essential plant food for production of protein.
* Promotes activity and development of enzymes and vitamins.
* Helps in chlorophyll formation.
* Improves root growth and seed production.
* Helps with vigorous plant growth and resistance to cold.
* Sulfur may be supplied to the soil from rainwater. It is also added in some fertilizers as an impurity, especially the lower grade fertilizers. The use of gypsum also increases soil sulfur levels.
The Micro-Nutrients
Boron (B)
* Helps in the use of nutrients and regulates other nutrients.
* Aids production of sugar and carbohydrates.
* Essential for seed and fruit development.
* Sources of boron are organic matter and borax
Copper (Cu)
* Important for reproductive growth.
* Aids in root metabolism and helps in the utilization of proteins.
Chloride (Cl)
* Aids plant metabolism.
* Chloride is found in the soil.
Iron (Fe)
* Essential for formation of chlorophyll.
* Sources of iron are the soil, iron sulfate, iron chelate.
Manganese (Mn)
* Functions with enzyme systems involved in breakdown of carbohydrates, and nitrogen metabolism.
* Soil is a source of manganese.
Molybdenum (Mo)
* Helps in the use of nitrogen
* Soil is a source of molybdenum.
Zinc (Zn)
* Essential for the transformation of carbohydrates.
* Regulates consumption of sugars.
* Part of the enzyme systems which regulate plant growth.
* Sources of zinc are soil, zinc oxide, zinc sulfate, zinc chelate.
the mystery of...
All complaints and compliments are welcome
Mail Box
Who needs a GREENTHUMB when you got the
For a healthier and more beautiful garden, visit your friendly neighbourhood nurseries and our website regulary...
TM
ProBiotic BioNutrients
The GREEN WHIZZARD is a bio-technological break-thru, resulted from the collaboration between GARDEN dePOT SDN BHD and UNIVERSITI TEKNOLOGI MARA (UiTM).
Whilst the general objectives of most conventional fertilizers are to add more of the basic nutrients (NPK) into the soil, the GREEN WHIZZARD is formulated with a special Probiotic Enzymes which promote the growth of the micro-organism in the ground. These micro-organism are essential for the breaking up of the nutrients and to unlock previously applied fertilizers which had been lying dormant. It is also blended with a pro-active chelating agent which help the bonding of the nutrients particles to the water for better absorbability.
No more bulky bags of useless slow releasing compounds or those unpleasant odour of animal manure. The GREEN WHIZZARD is set to revolutionize the task of fertilizer application.
ProBiotic Plant Nutrients
www.GARDEN dePOT.Info