Thursday, January 2, 2014

Factors that influence the acceptance of light by plants 1. Over the leaf surface area of leaf sur


Factors that influence the acceptance of light by plants 1. Over the leaf surface area of leaf surface area exposed to the sun the more leaf cells can carry out photosynthesis 2. The arrangement leaves more erect leaf arrangement allows more leaf exposed to sunlight. 3. Topography Topography refers to the shape of the land is not flat or high-low. Plants that grow in the mountains or hills that are exposed directly to the sun will receive more light. 4. Some shade plants should not be exposed directly to sunlight. The light received botex by the plant can be reduced by: a. placing the plants in a shed with a roof made of black mesh b. long sticks closely arranged at a certain distance method to get the optimum use of light 1. Choosing a suitable botex site most suitable crop area was the site of a flat, open and has good water drainage. 2. Growing crops at the right distance to be planted at a distance botex and patterns appropriate botex to the limited land area can be used to the maximum and to reduce competition between trees planted Several types of cropping patterns are as follows: a. Practice rectangular system is suitable for planting large trees. Based on the pattern of cultivation, every tree planted at the corners of the rectangle. b. Triangular botex system is more economical system to be menapung 15% more trees than rectangular. botex In this system the distance between the trees located on the corners of the triangle are equal. c. Bat elbow System This system consists of a main tree planted in the corner of the square with a tree while in the middle of the square. When the main tree gets larger, while the trees can be cut down. 3. Support is available to provide support to plants with soft stems. Type yabg support commonly used are: a. single timber (black pepper) b. timber pergolas (long beans) botex c. support of berpara (bitter gourd) d. support of hurdles (tomato) 4. Controlling weeds Weeds are unwanted plants that grow with the plants botex being grown. Weeds compete with crops for light and nutrients. 5. Provide artificial light Artificial light is used to replace botex sunlight. It is used when the natural light is insufficient or inappropriate in terms of intensity and duration of irradiation. Artificial light source is commonly used incandescent lamps and fluorescent botex lamps. Differences incandescent lamps and fluorescent lamps Fluorescent Lamps Incandescent Lamp # Produces a light spectrum that contains the color blue to infrared light # is not efficient botex because only 5% of the energy supplied converted into an electric light needed botex by plants # More than 15% of electricity supplied changed to light blue wave # High and promote the growth of leaves # Light produced a lack of red and infrared # Suitable for seedling growth 6. Crops planted crops were planted with major crops interlude between the spaces of trees before the results obtained. botex 7. Pruning Pruning is removing unwanted parts of the plant. This is intended to allow more light received by the plants botex that previously dominated.


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