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Presentation pbl farmers


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Presentation pbl farmers

  2. 2. FILA CHART<br />
  3. 3. ANSWER LEARNING ISSUES :<br /> Why the crops will not yield when draught season coming?<br />During draught, plant experienced extreme water deficiency. <br />As we know, plants need water to grow. <br />Without water, plants could not use energy from the sun to photosynthesis.<br />Many other process also cannot take place when have lack of water. <br />Without water, plants would be unable to grow taller.  <br />Water is also needed to carry other nutrients from the roots to the leaves and flowers.<br />Water is so important that plants that are native to desert conditions will go to extraordinary lengths to hoard their water.<br />Example :   Cacti are filled with water, which is why most cacti are covered with prickly spines to ward off any potential usurpers.<br />
  4. 4. 2. How yielding process of the plants occur? <br />
  5. 5. 2. What are the alternative way to overcome the decreasing of yield? <br /><ul><li>Farmer plant another plants that can stand with high temperature like bromeliads and cactus.</li></li></ul><li><ul><li>Farmer build many reservoirs by damming rivers and large-scale irrigations to make sure that there are the continuity of water supply for crops.</li></li></ul><li><ul><li>Build green house to provide and control the temperature surrounding for plant growth and development.</li></li></ul><li>What is green house?????<br />A greenhouse is a structure with a glass or plastic roof and frequently glass or plastic walls for the cultivation and exhibition of plants under controlled conditions <br />
  6. 6. Purpose of green house<br />Not to imitate mother nature.<br />Take a good look around<br />Bugs eating the plants, unfavorable heating conditions, and competition for nutrients are not in the plants' best interest. <br />To improve upon nature and grow a plant to its optimum capacity. <br />
  7. 7. Uses of green house<br />Protect crops from too much heat or cold<br />Shield plants from dust storms and blizzards<br />Help to keep out pests<br />Light and temperature control allows greenhouses to turn inarable land into arable land<br />For growing flowers, vegetables, fruits, and tobacco plants<br />Crops for commercial production.<br />
  8. 8. Let see the video!!!!<br />
  9. 9. <ul><li>Farmer find out another place that suitable for plant growth that have enough water.</li>