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A chemical element with the symbol N. Nitrogen is a macronutrient, that - along with oxygen, carbon and hydrogen - is essential for plant growth.

Last autumn I covered my garden in a bark chippings mulch, for frost protection, now I expect it will have take all the nitrogen out of the soil, will a 7- 7 - 7 provide enough nitrogen for general flower beds or will it need something stronger? You

The bacteria on the roots of leguminous vegetables, or the micro-organisms found in soil, which convert atmospheric nitrogen into nitrogen compounds that can be used by plants.

Knobbly growth arising from the roots of leguminous plants. The root nodules contain bacteria used in nitrogen fixation.

The result of a chemical process by which nitrogen in plant and animal waste is oxidised by soil bacteria. It first changes into nitrites, then into nitrates, which can be absorbed by plant roots. Nitrate of soda is an alkaline fertiliser that

IS SAWDUST ANY GOOD FOR PUTTING OVER YOUR GARDEN It'll add to the organic content of the soil, but it has no food value. If anything, it'll take a bit of nitrogen out of the soil as it breaks down, so it might be an idea to add a sprinkle

Any substance, organic or inorganic, used to increase soil nutrients. It can be straight, containing only one nutrient, such as nitrogen; or compound, containing more than one nutrient; or balanced, containing equal quantities of plant nutrients.

What is a 10-40-10 fertilizer? What should I look for to buy it?  The numbers are the (NPK) Percentages and should be marked on the fertilizer packets. So you require a fertilizer 10% Nitrogen - 40% Phosphorus - 10% Potassium

veg and would appreciate some advice on what to feed too?  Thanks Different veg have different requirements. The key to understanding fertilisers - organic and chemical - is the NPK code that you'll see on the packaging. N = Nitrogen; P = Phosphorous

). I never used it because I wasn't sure about the wood shavings. Last year I tried Miracle-gro soil conditioner and this was made up with wood shavings and it took ages for my vegetable plants to get over the lack of nitrogen due to the decomposing