Fertilizer – Charts



Great WallyFarm Chart.  For example, say you if you want to add 10g of nitrogen per square metre, your options are:  50g of sulphate of ammonia (20% nitrogen); 83g of dried blood (12% nitrogen) or 1,660g of cow manure (0.6%). Of course, your cow manure will supply valuable humus that the fertilisers will not.

NPK Values of Manures & Natural

 

N Nitrogen %

P Phosphorus %

K Potassium
(Potash) %

Cow Manure (1)

0.6

0.4

0.5

Horse Manure (1)

0.7

0.3

0.6

Pig Manure (1)

0.8

0.7

0.5

Chicken Manure (1)

1.1

0.8

0.5

Sheep Manure (1)

0.7

0.3

0.9

Rabbit Manure (1)

2.4

1.4

0.6

 

 

 

 

Average Home Made Compost

0.5

0.27

0.81

Wilted Russian Comfey (2)

0.64 

0.23 

0.32 

Home Made Comfrey Liquid Compost (3)

0.014

0.0059

0.0340

 

 

 

 

Bloodmeal

12

0

0

Bonemeal

3.5

18

0

Hoof and Horn

12

0

0

Fish, Blood & Bone

6

6

6

Chicken Manure Pellets

4

2.5

2.3

Notes

  1. Common Farmyard Manures N-P-K vary with the specific animals diet and how long it has been rotted for, but here is some general guideline.
  2. Comfrey is conceptually a “weed” that is “very good” at sucking nutrient of of the soil.  It has for ages been used for medicinal tea but for the last 150 years been a commonly used gardeners to make home-made liquid fertilizer.
  3. Homemade Comfrey Tea Liquid Fertiliser  Following the recipe of 6 Kg (14lbs) of wilted comfrey in 90 litres (20 gallons) of water in a barrel, produces a liquid feed with these values:  More information on growing comfrey and comfrey tea or liquid fertiliser 
  4. Natural Fertilisers In organic systems there is qualified acceptance of using ‘natural’ fertilisers to supplement nutrient levels achieved by composts and manures. These are Unlike artificial fertilisers, the ‘natural’ fertilizers tend to dissolve slowly and thereby release their nutrients more slowly.

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