1
Q
most common nutritional problem in California is related to deficiencies of
A
nitrogen, phosphorus, potassium, zinc, iron
2
Q
toxicity problems by excess in
A
born, chloride, sodium
3
Q
deficiency symptoms of nitrogen
A
- slow growth, stunting
- most commonly deficient
- naturally low in CA soil
- chlorosis in older tissues
4
Q
deficiency symptoms in phosphorus
A
- slow growth, stunting
- purple/dark green coloration
- poor fruit/seed development
5
Q
deficiency problems in potassium
A
specking/spotting
6
Q
pros of synthetic fertilizers
A
- cheaper by pound
- faster acting
- more controlled release
- higher concentration of EPN
7
Q
cons of synthetic fertilizers
A
- nitrogen attached to soluble salt, leaving sodium in soil
- potential for leaching
Environmental Science
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