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2. Plant nutrients in soil - Wikipedia

   en.wikipedia.org/wiki/Plant_nutrients_in_soil

   Nitrogen is the most critical element obtained by plants from the soil, to the exception of moist tropical forests where phosphorus is the limiting soil nutrient, [36] and nitrogen deficiency often limits plant growth. [37] Plants can use nitrogen as either the ammonium cation (NH 4 +) or the anion nitrate (NO 3 −).

3. Plant nutrition - Wikipedia

   en.wikipedia.org/wiki/Plant_nutrition

   Plant nutrition is the study of the chemical elements and compounds necessary for plant growth and reproduction, plant metabolism and their external supply. In its absence the plant is unable to complete a normal life cycle, or that the element is part of some essential plant constituent or metabolite .

4. Fertilizer - Wikipedia

   en.wikipedia.org/wiki/Fertilizer

   Nitrogen fertilizers are made from ammonia (NH 3) produced by the Haber–Bosch process. [28] In this energy-intensive process, natural gas (CH 4) usually supplies the hydrogen, and the nitrogen (N 2) is derived from the air. This ammonia is used as a feedstock for all other nitrogen fertilizers, such as anhydrous ammonium nitrate (NH 4 NO 3 ...

5. Gardeners: Here's Everything You Need to Know about Using ...

   www.aol.com/gardeners-heres-everything-know...

   Before fertilizing your garden here's what to know about organic fertilizers, whether you need them, and how to find the right ones for you.

6. Your Wilting Plants Need This Fertilizer ASAP - AOL

   www.aol.com/wilting-plants-fertilizer-asap...

   10-10-10 fertilizer has equal parts nitrogen, phosphorus, and potassium. ... at the right time. 10-10-10 fertilizer can be a vital part of plant health and is a great choice to deliver most plants ...

7. Nitrogen and Non-Protein Nitrogen's effects on Agriculture

   en.wikipedia.org/wiki/Nitrogen_and_Non-Protein...

   When discussing the application of nitrogen in agriculture, it is essential to consider the sources of nitrogen used. Synthetic nitrogen fertilizers, such as ammonium nitrate and urea, are commonly applied to crops to replenish soil nitrogen levels and enhance crop productivity [3] These fertilizers provide readily available nitrogen for plant ...