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nitrogen, phosphurous and pottasium

2007-01-17 03:39:10 · 3 answers · asked by mrs. sam 1 in Science & Mathematics Botany

3 answers

Nitrogen, phosphorus, and potassium are all important elements in plant production.
Nitrogen (N) is important in forming chlorophyll. It is one of the building blocks of proteins and nucleic acids. Nitrogen also increases stem and leaf production and gives us green leafy growth. Nitrogen can also decrease winter hardiness if applied too late in the season. Deficiencies of nitrogen appear as reduced growth and yellowing of leaves. Nitrogen quickly leaches out of soils.
Phosphorus (P) is needed for growth of shoots and roots. It is essential for cell division. It stimulates root development and root health. It is very important for emerging seedlings, for flowering and for pollen and seed formation. Phosphorus also is needed to produce winter hardiness. Too much phosphorus interferes with nitrogen and micro-nutrient absorption. Lack of phosphorus causes reduced growth and flowering, and browning or purpling of foliage. Phosphorus moves slowly down through soil and, therefore should be incorporated at planting time.
Potassium (K) is used in rapidly growing tissue and is important in fruit formation. It is necessary for photosynthesis and the formation of amino acids and proteins. It aids the plant in disease resistant and winter hardiness. A deficiency causes reduced growth, shortened inter-nodes, leaf- margin burn and a tendency to wilt. Potassium moves relatively slowly thought soil.

2007-01-20 16:29:18 · answer #1 · answered by john h 7 · 0 0

You will find the answers at this website:

2007-01-17 11:49:47 · answer #2 · answered by A1973 3 · 0 0

Do your own homework!!!

2007-01-17 04:48:04 · answer #3 · answered by Anonymous · 0 0

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