Available Answers

1. 1.

   Match the words in Column 1 with the phrases in Column 2.

   Column 1	Column 2
   a. Fungicide	i. algae
   b. Biodiesel	ii. fungal diseaes of wheat
   c. Transplanting	iii. compost made using earthworms
   d. Irrigation	iv. growing cereals and legumes alternatively
   e. Foliar sprays	v. separating watering of crops
   f. Vermicompost	vi. artificial watering of crops
   g. Crop rotation	vii. planting seedlings in fields
   h. Rust and smut	viii. kills fungi
   i. Winnowing	ix. fertilizer applied on leaves

    

2. 2.

   Mark the statements true (T) or false (F) and correct the wrong ones.

   1. Coffee trees are grown in orchards.
   2. Crops grown in the rainy season are known as krarif crops.
   3. Drip irrigation requires more water than basin irrigation.
   4. Mixed fertilizers contain more than one nutrient.
   5. Lime is added to make an alkaline soil acidic.
3. 3.

   Fill in the blanks.

   1. Blast is a ______________ disease of _____________.
   2. Aphids can be controlled by __________________________.
   3. Cotton, tobacco and medicinal plants are ____________________.
   4. Abundant humus causes a soil to become ________________.
   5. When fields are flooded, it is known as _______________ irrigation.
4. 4.

   Give the scientific name for each of the following.

   1. Concrete structure used for large-scale storage of grains
   2. Crops grown in winter
   3. Loss of salt in soil by excess water
   4. Large chunks of soil produced by ploughing
   5. Scattering seeds
   6. Planting seedlings raised in nurseries in fields
   7. Spraying water over plants
   8. Crossing two varieties to produce a better seed
   9. Chemicals used to control pests
   10. Ditches made by ploughs
5. 5.

   Distinguish between Manure and Green manure.

6. 6.

   Distinguish between Drip irrigation and Sprinkler irrigation.