Plant Nutrition (Ch. 37). Physiological adaptation. Dogs pee on trees…Why don’t trees pee on dogs?. plant nutrient. NH 3. animal waste. Nutritional needs. Autotrophic does not mean autonomous plants need… sun as an energy source inorganic compounds as raw materials
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Dogs pee on trees…Why don’t trees pee on dogs?
silica based soils- low in P- can be acid
Acid soils bind upmineral ionspH by adding lime
Take 2 fertilizer pellets& call me in the morning
Why does magnesium deficiency cause chlorosis?
The chlorosis shows up in older leaves first, because plant moves Mg+ to newer leaves. Why?
Agronomistsreally dig dirt!
So don’t rakeyour lawn or bag your leaves
Not taking care of soil health has far-reaching, damaging consequences
“A sustainable agriculture does not deplete soils or people.”
– Wendell Berry
What are thepolitical, economic,environmentalissues?
What will the plant use N for?
Plow it under?
Why would youthat?
A farmer… outstandingin his field?
erosion control, too
Are they really carnivores?
Venus fly trap
1. The inorganic compound that contributes most of the mass to a plant’s organic matter is *
2. You are conducting an experiment on plant growth. You take a plant fresh from the soil and it weighs 5 kg. Then you dry the plant overnight and determine the dry weight to be 1 kg. Of this dry weight, how much would you expect to be made up of inorganic minerals?
This figure shows the results of a study to determine the effect of soil air spaces on plant growth. Use these data to answer the following question.
3. The best explanation for the shape of this growth response curve is that
4. Carnivorous plants have evolved mechanisms that trap and digest small animals. The products of this digestion are used to supplement the plant's supply of