Improvement in food resources long 4 Flashcards
1
Q
Why do we use inter-cropping
A
It ensures maximum utilisation of the nutrients supplied and also prevents pests and diseases from spreading to all the plants belonging to one crop in a field.
2
Q
What are the ways in which weeds,insects and diseases delt with
A
One method is the use of pesticides. However excessive use of these chemicals cause environmental pollution. Mechanical removal and preventive methods such as intercropping and crop rotation also help in weed control.
3
Q
What is summer ploughing
A
Summer ploughing is when fields are ploughed deep in summers to destroy weeds and pests.
