Meaning of 'crop'

[That'sme]

I know crop has probably been explained, but i wanted to add to it, mostly to test my understanding.
The preference to Crop over production.I believe that the basic difference has been explained, but when I look at both the terms I feel that crop is more specific to the context of the father being a farmer rather than using production. Production is actually a very general term, because we use production in everything from grains to cars, to organizational progress. so I think its always better to use a specific word rather than a general term.
again this is what i think and this one of the approach I use when I am in similar situation.
so please let me know if my thinking is reasonable or it has some flaw by replying to my post.

[Omarrizk]

why ' gathering ' is not accepted as a correct answer?
It means also Harvesting, isn't it?

[Beeesneees]

[Omarrizk]

Beesenees said
The word 'gathering' is inappropriate for much the same reason. Where 'gathering' is a noun, it tends to refer to a meeting of people.
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According to Cambridge Advanced Learner's Dictionary 'gather' as a verb also means 'collect.' This is the example sentence given
She gathered up blackberries from the hedgerow.

[Beeesneees]

Yes, the word 'gather' means 'collect' when it is a verb. Did you have some point you wished to make about that?
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Cheers m' dears!

[Omarrizk]

Crop is accepted because it is a noun. When we add -ing to a verb, it becomes a verbal noun or Gerund. Therefore, in the sentence

Clearly their father had been a wise man because all the work the sons had done on the land ensured that they had the best ......... for years.

'gathering' can be used to fill in the missing part.

[Beeesneees]

'Gathering cannot be used to fill the missing part because it is not precise enough. 'Gathering' could be a gathering of anything - but is usually a collection of people.
'
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Cheers m' dears!

[Omarrizk]

Thanks a lot. It is not precise enough. Does this mean it is possible?

[Beeesneees]

No. It does not convey the meaning of the sentence.
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Cheers m' dears!