Why is fertiliser important?

Answer 1

Fertilizer is a source of vitamins and nutrients that plants need to grow hardier than plants that don't get it. Basically, it's nothing more than plant food. Miracle-Gro is a great fertilizer, as is cow manure. Both will make any plant stronger, greener, and hardier.

Answer 2

When you grow stuff, the stuff takes it's food out of the ground. To grow some more stuff, you have to put plant food back in. That's fertiliser.

Answer 3

When you take some thing out of the soil eg a cabbage, you are taking away nutrients as well which need to be replaced so by saving domestic compost, tea bags, peeling etc. and trench it back into the garden then you keep the soil active.

Answer 4

By constant croping the mineral content of soil falls short due exhaustion.Therefore, soil should be supplemented with minerals. By adding particular mineral(fertilizer), the lost mineral/minerals is compensated so that the crop doesnot fail to grow in absence of that particular mineral.

Answer 5

It is important beacuse it helps to recover the deficient minerals and nutrituents in the soil.It is always recommended after the soil is tested to detect the deficiency.

Answer 6

it has minerals and vitamins(nutrients)
that the plant uses for growth (food)

Answer 7

Fertilizers (British English fertilisers) are compounds given to plants to promote growth; they are usually applied either via the soil, for uptake by plant roots, or by foliar feeding, for uptake through leaves. Fertilizers can be organic (composed of organic matter, i.e. carbon based), or inorganic (containing simple, inorganic chemicals). They can be naturally-occurring compounds such as peat or mineral deposits, or manufactured through natural processes (such as composting) or chemical processes (such as the Haber process).

Fertilizers typically provide, in varying proportions, the three major plant nutrients (nitrogen, phosphorus, and potassium), the secondary plant nutrients (calcium, sulfur, magnesium), and sometimes trace elements (or micronutrients) with a role in plant nutrition: boron, chlorine, manganese, iron, zinc, copper and molybdenum.

In the past, both organic and inorganic fertilizers were called "manures", but this term is now mostly restricted to organic manure.

Fertilizers can be divided into macronutrients or micronutrients based on their concentrations in plant dry matter. There are six macronutrients: nitrogen, potassium, and phosphorus, often termed 'primary macronutrients' because their availability is often managed with NPK fertilizers, and the 'secondary macronutrients'--calcium, magnesium, and sulfur--which are required in roughly similar quantities but whose availability is often managed as part of liming and manuring practices rather than fertilizers. The macronutrients are consumed in larger quantities and normally present as whole number or tenths of percentages in plant tissues (on a dry matter weight basis). There are many micronutrients, required in concentations ranging from 5 to 100 parts per million (ppm) by mass. Plant micronutrients include iron (Fe), manganese (Mn), boron (B), copper (Cu), molybdenum (Mo), nickel (Ni), chlorine (Cl) and zinc (Zn).

Nitrogen fertilizer is often synthesized using the Haber-Bosch process, which produces ammonia. This ammonia is applied directly to the soil or used to produce other compounds, notably ammonium nitrate and urea, both dry, concentrated products that may be used as fertilizer materials or mixed with water to form a concentrated liquid nitrogen fertilizer, UAN. Ammonia can also be used in the Odda Process in combination with rock phosphate and potassium fertilizer to produce compound fertilizers such as 15-15-15

Over-application of chemical fertilizers, or application of chemical fertilizers at a time when the ground is waterlogged or the crop is not able to use the chemicals, can lead to surface runoff (particularly phosphorus) or leaching into groundwater (particularly nitrates). One of the adverse effects of excess fertilizer in lacustrine systems are algal blooms, which can lead to excessive mortality rates for fish and other aquatic organisms. When prolonged algae blooms occur over many years, the effect is a process called eutrophication. Worldwide the issues of nutrient fate are analyzed using hydrology transport models.

Excessive nitrogen fertilizer applications can lead to pest problems by increasing the birth rate, longevity and overall fitness of certain pests (Jahn 2004; Jahn et al. 2001a,b, 2005; Preap et al. 2002, 2001).

It is also possible to over-apply organic fertilizers. However: their nutrient content, their solubility, and their release rates are typically much lower than chemical fertilizers, partially because by their nature, most organic fertilizers also provide increased physical and biological storage mechanisms to soils.

The problem that we face of over-fertilization is primarily associated with the use of artificial fertilizers, because of the massive quantities applied and the destructive nature of chemical fertilizers on soil nutrient holding structures. The high solubilities of chemical fertilizers also exacerbate their tendency to degrade ecosystems.

Storage and application of some fertilizers in some weather or soil conditions can cause emissions of the greenhouse gas nitrous oxide (N2O). Ammonia gas (NH3) may be emitted following application of inorganic fertilizers, or manure or slurry. Besides supplying nitrogen, ammonia can also increase soil acidity (lower pH, or "souring").

For these reasons, it is recommended that knowledge of the nutrient content of the soil and nutrient requirements of the crop are carefully balanced with application of nutrients in inorganic fertiliser especially. This process is called nutrient budgeting. By careful monitoring of soil conditions, farmers can avoid wasting expensive fertilizers, and also avoid the potential costs of cleaning up any pollution created as a byproduct of their farming.

Answer 8

Because it lets you recycle shite.