chages in agriculture industry in the world till today?

Question

changes in agriculture indistry of the globe

Answer 1

yea what are you asking?

Answer 2

Briefly.
1. Stock (pigs, sheep, etc) has improved genetically over thousands of years by selective breeding, slowly by unscientific methods, faster in recent centuries by scientific methods.

2. First fields were dug by hand and trowel. Then along came the plough pulled by a draught animal (horse, ox, bullock, water-buffalo depending on where). Then came the mechanical plough. Now we have more machines like combine harvesters.

3. Higher yields of crops per hectare and per person-hour of labour due to:
a)Fewer people to farm per hectare especially in recent decades, more machines.
b) more input of chemicals.
c) more-precise targeting of inputs -- innovations such as the seed drill and drip sprinklers that deliver water direct to the roots.
d) genetically improved crops.

4. Steady rise in international trade in food (also in farm inputs and non-food output), due to better/cheaper transport (especially the 19th century inventions of railways [opening up the US prairies] and refrigerated shipping [allowing e.g. Australian and New Zealand produce and Caribbean and latin American bananas to be shipped to Europe]. Gradual disappearance of seasonal limits to availability of food choices to thhe consumer.