In order to calculate the concentration of pure P (in %), multiply that number by 0.44. Phosphorus: The second number represents the concentration of phosphorus (pent) oxide (P 2O 5) in the commercial fertilizer, in percentage units. Nitrogen: The first number on the left represents the concentration of pure nitrogen (N) in the commercial fertilizer, in percentage units. The world over, the main nutrients are listed in the following order: N-P-K (nitrogen, phosphorus, potassium). The numbers that appear on a fertilizer’s formula express the concentration of the various nutrients (for both solid and liquid fertilizers) in percentage per unit weight. Important !! Phosphorous units and Potassium units are the terms used by the industry and the farming community – these are not scientific units ( 0.832 x the weight of K 2O = the weight of K) (1.21 x the weight of K = the weight of K 2O). The relationship between pure potassium and potassium oxide is:ġ Kg (pure) K = 1.21 Kg K 2O.

Potassium (Kali) (K) – the concentration of potassium in the commercial fertilizer is expressed as the percentage of potassium oxide (K 2O) in the fertilizer. Or: 1 Kg P 2O 5 = 0.44 Kg (pure) P (0.44 x the weight of P2O5 = the weight of P) The relationship between pure phosphorus (P) and the oxide (P 2O 5) is:ġ Kg (pure) P = 2.3 Kg P 2O 5 (2.3 x the weight of P = the weight of P 2O 5). Phosphorus (P) – the concentration of phosphorus in the commercial fertilizer is expressed as the percentage of phosphorus (pent) oxide (P 2O 5) in the fertilizer, as grams of P 2O 5 in 100 gr of fertilizer. Nitrogen (N) – the concentration of nitrogen in a commercial fertilizer is expressed as the percentage of pure N in the fertilizer, as grams of N in 100 gr of fertilizer. milligrams of pure element in 1 Kg of fertilizer (mgr/Kg) or in grams of pure element per ton of fertilizer (gr/ton). The concentration of micro- elements is generally expressed in parts per million (ppm), e.g. Important !! The concentration of the macro-nutrients in a fertilizer is given in percentage per weight units, e.g.: grams of the macro-nutrients (N, P 2O 5, K 2O) per 100 gram of fertilizer (gr/100 gr). Special fertilizer solutions contain also micro- nutrients, elements that plants require only in very small amounts: Iron (Fe) Zinc (Zn) Manganese (Mn) Molybdenum (Mo) Boron (B) Copper (Cu). Some times it may be necessary to supply also secondary elements: Calcium (Ca) Magnesium (Mg) and Sulphur (S). Nitrogen (N) Phosphorus (P) Potassium (also called Kalium) (K). The soil, substrate and crops for which the fertilizer is recommendedĪ fertilizer solution may contain one or more of the main- or macro- nutrients. Settling out (crystallization) temperature of the liquid fertilizer. Its fitness for the various fertilizer application technologies. The required storage conditions and the maximum period of storage. The physical condition of the solid fertilizer: cristallic, powdery, prilled or granulated The turbidity of the liquid fertilizer solution

The chemical compounds which make up the fertilizer. The concentration of nutrient elements (N P 2O 5 K 2O). The real Kuhn Axis 40.2 has a published maximum working width up to 40 meters, Bredal K105-165 36 meters without the spreader width extensions, and Kverneland Exacta 21 meters.Įdit: forgot about the HORSCH solid spreader at 36 meters, that’s your cheapest fertilizer consumption to ground coverage.Properties of solid and liquid fertilizersĮach fertilizer has characteristic properties that make it different from all others.įertilizers are classified into two main groups:Solid fertilizers and liquid fertilizers.Įach group is characterised according to the following properties: the Kuhn trailered liquid fertilizer sprayer and larger is where it’s cheaper. So under that is a reduction and over is a increase.īecause of the slower ground speed combined with game mechanics.

Technically there is a change, but is of such small difference it is essentially meaningless. They both consume the same rate regardless of working width. Now with regard to solid vs liquid usage. Actual in game, (don’t have my notes with me) is about 400 liters for fertilizer and 3300 liters for lime. Per Bredal on the 24 meter spread setting solid fertilizer should consume 700 liters per minute and lime should be 1400 liters at 12-16 meters. The game fertilizer mechanics, like lime are nothing like real life. They grow the same on a barren cultivated field. Weed growth has nothing to do with fertilizer used.

Solid and liquid fertilizers