What do fertiliser contain?

Answer 1

food for plants-nutrients, ect... these make sugar! - err... plants make sugar via photosynthesis, which is when the plant converts CO2 (carbon dioxide) and water with sunlight, to glucose. As for what do fertilisers contain, have a look at the ingredients part on the bag next time. Fertilizers contains heaps of nitrogen, ammonia and phosphorus as well as other chemicals, which are very nutritious for plants and promote growth.

Answer 2

Phospates and other nutrients essential to plant cell photosynthesis and cell reproduction.The mineral nutrients are divided into two groups:

macronutrients and micronutrients. macronutrientsMacronutrients can be broken into two more groups:primary nutrients and secondary nutrients. The primary nutrients are nitrogen (N), phosphorus (P), and potassium (K). These major nutrients usually are lacking from the soil first because plants use large amounts for their growth and survival. The secondary nutrients are calcium (Ca), magnesium (Mg), and sulfur (S). There are usually enough of these nutrients in the soil so fertilization is not always needed. Also, large amounts of Calcium and Magnesium are added when lime is applied to acidic soils. Sulfur is usually found in sufficient amounts from the slow decomposition of soil organic matter, an important reason for not throwing out grass clippings and leaves. Micronutrients Micronutrients are those elements essential for plant growth which are needed in only very small (micro) quantities . These elements are sometimes called minor elements or trace elements, but use of the term micronutrient is encouraged by the American Society of Agronomy and the Soil Science Society of America. The micronutrients are boron (B), copper (Cu), iron (Fe), chloride (Cl), manganese (Mn), molybdenum (Mo) and zinc (Zn). Recycling organic matter such as grass clippings and tree leaves is an excellent way of providing micronutrients (as well as macronutrients) to growing plants.