Q8 of 15 Page 141


From the above statements, suggest techniques to overcome the problems of Shanmugam and Velu.

1. The number of plants can be increased by improving the condition of soil before planting seeds such as ploughing and leveling and providing adequate nutrition to the soil by adding fertilizers along with good irrigation.


2. Pesticides may be used on plants which do not have the ability to resist diseases.
Seeds which are genetically modified to show resistance to diseases may also be bought from the market.


More from this chapter

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7

● Mani is repeatedly cultivating same paddy crop in his field and getting poor yield.

● Nathan likes to go for changing the crops every season and getting good yield.


● From the above statements find out and justify the best method of agricultural practice.

 7

Classify the following items based on the storage methods.

(Apple, Wheat, Potato, Rice, Grape, Sorghum)


 8

Complete the circles based on applications of Genetic Engineering

 9

List some more common crop plants