The More'the Better

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The More.the Better

• by
• The Leaf Group

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Do you know that

• certain farm practices actually increase
  photosynthesis?

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• What are those practices?
• How do they increase photosynthesis?

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• Heres what we found out

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• Farming Practice No. 1 Plowing/harrowing
  breaks soil into clumps and form thick soil-water
  mixture.

Click to see how plowing enhances photosynthesis
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• Farming Practice No. 1 Plowing/harrowing
  breaks soil into clumps and form thick soil-water
  mixture.

Kills weeds that compete with crops for sunlight
and water for photosynthesis.
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• Farming Practice No. 2 Irrigation provides
  crops with water.

Click to see how irrigation enhances
photosynthesis
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Farming Practice No. 2 Irrigation provides
crops with water.
Water is a raw material for photosynthesis and
carries food and nutrients to different parts of
the plant.
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How much water do plants need?

• rice plant highest right after sowing and
  gradually decreases until just before harvest
  time.
• vegetables, potatoes and corn least during the
  initial stage, highest during the development
  stages, and decreases when nearing harvest.

Source AQUASTAT
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Farming Practice No. 3 Applying organic or
inorganic fertilizer provides Nitrogen,
Phosphorus and Potassium to crops.
Click to see how fertilizers enhance
photosynthesis
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• Farming Practice No. 3 Applying organic or
  inorganic fertilizer provides Nitrogen,
  Phosphorus and Potassium to crops.

Nitrogen provides proteins to cells and as
enzymes control the rate of chemical
reactions. Phosphorus is needed to form ATP, a
high-energy molecule which is a product of light
reactions during photosynthesis. Potassium is
involved in the opening and closing of the
stomata.
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How do plants look without N, P, K?
No nitrogen yellow/green leaves, weak stem
No potassium poor flower and fruit growth
No phosphorus poor root growth
Source Modular Science Biology
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• More grains and

bigger fruits --

• Yes, photosynthesis has something to do with it!

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For additional info

• Visit our class web site at
• http//www.geocities.com/photosyn

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References
For the Text

• Carale, L. R., Galvez, E.R. Reyes, R. L.
  (1999). Science and technology for a better life
  Biology. (3rd ed.) Makati City Diwa Scholastic
  Press.
• Carale, L. R., Galvez, E. R. Reyes, R. L.
  (1989). Science and technology for a better life
  Biology. (3rd ed.). Makati City Diwa Scholastic
  Press.
• AQUASTAT FAOs Information System on Water and
  Agriculture http//www.fao.org/ag/AGL/AGLW/aquasta
  t/water_use/index4.stm
• For the Graphics
• Beckett, B. Gallagher, R. (2001).Modular
  science biology. Oxford Oxford University Press.
  
• Clip art images from Microsoft Office 2000