"NPK- The big three" FAQs

1)    What is NPK? All plants, any species in the world, needs 4 major elements for its survival, growth and reproduction -Nitrogen (N), Phosphorous (P) and Potassium (K) and Carbon (C). The first 3 are coined as NPK available as chemical fertilizer and carbon is generally available from organic manures.

2)    Great, where do I get it? Your plant will get these normally from soil and manures. However, they need to be broken down into forms that can be absorbed so the plants can use them. Our invisible friends such as bacteria and visible wriggly friends such as earthworms do this. Think twice before you chuck out the hardworking critters.

3) What does Nitrogen do?

• 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. 

4)    What does Phosphorus do?

• 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.

5)    Why Potassium?

• Plants absorb potassium 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.

6)    So do I need to add a chemical fertilizer containing NPK to my soil?

Yes and no.  Often a cause of debate (chemical fertilizer production causes pollution and harms the environment in some cases) NPK formulations have been used since as far back as 1800’s. Farmers and commercial growers swear by it, because these fertilizers are fast acting and absorbed by the plant very quickly. They also need to be used in smaller quantities for same result as organic manure- because they are concentrated.

7)    Are chemical fertilizers more expensive? Of course! But you do get more bang for your buck…

8)    Are they all I need? No. Fertilizers containing NPK, contain just that. They are the basic plant food, but not the complete set of nutrition. Plants still need micronutrients, other macro elements like Carbon, Sulphur, Calcium, and Magnesium etc.

9)    So should I stick to organic manure? Sure. But if you have very old pots with soil in them, or you have moved into a newly built plot with no garden, just bare empty soil in your backyard, the soil will need to be replenished. Use a combination of NPK, which will give a quick boost of nutrients to your plant along with organic/farmyard manures or compost, which will release smaller amounts of nutrition over longer period of time.

10) Have you got a drip irrigation system? Water-soluble NPK formulations will work great with your drip system and because they are absorbed quickly, and dispersed more accurately than flooding the bed.

What are Micro Nutrients?

Each flowering plant requires minor elements or micronutrients besides the chemical or organic fertilizers. These micronutrients help the plant in many ways, such as give more numbers of flowers, larger flower size and good luster of the petals.

The above diagram shows symptoms associated with deficiency (shortage) of each micronutrient  in the plant. If your plant has any micronutrient deficiencies, it will warn you by showing these symptoms on the leaves and will eventually affect the plant in serious ways.

Micronutrients are usually in a liquid from, or sometimes mixed with a fertilizer -and is mixture of seven essential micronutrients necessary for growth of plants. Some of these are explained below:

Manganese- Functions with enzyme systems in the plant which are involved in breakdown of carbohydrates, and nitrogen metabolism. 

Iron- Essential for formation of chlorophyll.

Zinc- Regulates the consumption of sugar in the plant (sugar=energy!)

Boron- Aids production of sugar and carbohydrates

Copper- Important for reproduction of plant- ie fruit and flowers

Molybdenum- Helps the plant capture nitrogen

There are several micronutrient brands out there such as Garden Green by Ranker Agro,  Neepaj, Devimicroshakti, Sun Khanij Bhandar  etc. 

We like Sun Khanij Bhandar becuase it comes in small packaging! This unique formulation is available in liquid and granular form. Liquid Sun Khanij Bhandar is useful for soil application as well as foliar spray, whereas granules are used in soil application only. How to use it:

Dosage

Liquid:

Sun Khanij Bhandar Liquid can be used as soil application or as foliar spray. When using as foliar spray, use either early in the morning or late in the evening.

Field Application if you have a big farm house:

6-10 liters of Sun Khanij Bhandar can be applied per acre. For soil application dilute the same with appropriate quantity of water and is applied either as flood irrigation or in drip. Apply twice, once as pre-planting dose and second prior to flowering.

Garden Application:

It is used as foliar spray. Add 45 ml in 15 liter of water and spray on the potted plants.

Granules:

Field Application:

Sun Khanij Bhandar micronutrient granules are meant for soil application. You can use about 30 Kg per acre. Apply twice, first during pre-planting in field and second time prior to flowering.

Garden Application:

Use about 5 g of granule per 12 inch size potted plant, no more than twice a year.