Posted by: grandma | November 14, 2007

Plant Symptoms

 Even though this is for Hydroponics I thought It was just good info to have From:Virginia Cooperative Extension 

Home Hydroponics

Occasionally, the nutrients in a hydroponic system are used up faster than they can be replaced, and the plants will show a nutrient deficiency. A quick fix for most of the deficiencies is to spray the leaves with an all-purpose, foliar fertilizer, although this will not completely solve the problem.This is a table that might make diagnosing plant problems easier. The symptoms are what you will notice, and the defiency is what the plant needs. Simple right?

Symptoms

Deficiency
Entire plant is light green in color; lower leaves are yellow; growth is stunted. Nitrogen
Entire plant is bluish-green, often developing a red or purplish cast; lower leaves may be yellow, drying to a greenish-brown to black color; growth may be stunted. Phosphorous
Leaves have a papery appearance; dead areas along the edges of the leaves; growth is stunted. Potassium
Lower leaves turn yellow along the tips and margin and between the veins; the lower leaves wilt. Magnesium
Young stems and new leaves die. Calcium
Leaf tissue between the veins is lighter in color; yellow ed; papery in appearance. Zinc
Leaf tissue appears yellow, while the veins remain green. Iron
Leaf edges appear dark green or blue; leaf edges curl upward; young leaves permanently wilt. Copper
Young leaves turn pale green, while the older leaves remain green; plant is stunted and spindly. Sulfur
Growth is stunted; lower leaves have a checkered pattern of yellow and green. Manganese
Leaves are stunted, pale green, and malformed. Molybdenum
Young leaves are scorched at tips and margins. Boron

Morningstarsuggest for Aquaponics using 2oz or Chelated Iron Southern Agbut not Lesco Chelated Iron Plus because the numbers are 12-0-0 and that is to much nitrogen in the system. Unfortunately I found that out the hard way. My pond was cloudy and some of my plant leaves were burnt. Some turned all sort of brown colors.I could not find just plain Chelated Iron so He said I could use “Chelated Palm Nutritional” but only 1 oz  every other week.

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Responses

  1. very impressive!


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