Lesson the common seed bearing plant such as a grass consists of four major parts: root, stem, leaf and 4 flower. The Root

GLOSSARY

1. 
   intangible–тутиббӯлмайдиган;
   
2. 
   comprehensive–хартомонлама;
   
3. 
   earthing up –тӯдалаш;
   

ANSWER THE QUESTIONS

1. 
   Name some important qualities of potatoes, required to suite a wide range of environmental conditions?
   
2. 
   What is the chief aim in the cultivation of the potato crop?
   
3. 
   Why must the cultivation of the soil for potato crop be deep and thorough?
   
4. 
   What factors does the time of planting of potato depend on?
   
5. 
   What are the ways of storage of potatoes?
   

LESSON 51


TEXT: SOIL CONSERVATION

Soil Erosion

• 
  The wearing away of soil
  
• 
  Loss of soil
  

Natural Causes of Soil Erosion:

• 
  Wind
  
• 
  Water (rain)
  
• 
  Gravity (hills, mountains)
  
• 
  Ice (glaciers, cold temperatures)
  

1. 
   Crop Rotation
   

Planting different crops on the same field in different years

2. 
   Conservation Tillage
   

Reducing the number of times fields are tilled, or plowed, in a year

3. 
   Terraces
   

Flat, step-like areas built on a hillside to prevent rainwater from running downhill

4. 
   Contour Plowing
   

Plowing along curves or contours of a slope to prevent water from running straight downhill

5. 
   Wind Breaks
   

Rows of trees between fields to “break” or reduce the force of winds

ANSWER THE QUESTIONS

1. 
   What is soil conservation?
   
2. 
   What is the natural causes of soil erosion?