Hint: In Relay cropping second crop is planted even before the first crop is harvested. Thus, both crops share some part of the season. In India, Rice –cauliflower – onion-summer gourd is one example of relay cropping. Advantages: Less risk since yields do not depend on one crop alone. Better distribution of labor. Some diseases
Hint: Cropping pattern means the proportion of area under various crops at a point of time. It’s a dynamic concept because it changes over space and time. An extended answer of this question would need the discussion about various factors affecting the cropping patterns.
Hint: Cropping pattern refers to the yearly sequence and spatial arrangement of crops and fallow on a given area. Cropping system refers to cropping pattern used on a farm and its interactions with farm resources, other farm enterprises, and available technology which determine their makeup. Thus a cropping system comprises cropping pattern plus all components
Hint: The Japanese campaign of Early 1940s in South East Asia blocked availability of natural rubber to allies. This was a strategic material at that time needed in military vehicle tyres and some other equipments. Only Ceylon was left as last remaining source of natural rubber for allies. This crisis had brought the allies to
Hint: Please discuss “Amazon rubber boom” and the “rubber theft”.