Maggie you have got it right my girl it is silage round this way crops are different and have a limited time to get them in Well done Maggie right again Gold Star for you my friend 
Dont know anything about crops Suse as I am a city bird by birth although now I live in deepest somerset, my Mum was in the land army in the war on an arable farm

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I agree with you that hay and such like cannot be stored damp so they have to make sure it's dry from the dew first. I would think cereals are the same but turnips and stuff like that may be different.
Maybe we should take up farming after all.
