questions: asking how to prepare bordeaux mixture. 
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procedure to prepare bordeaux mixture(1%)- 1. dissolve 100 gm copper sulphate in 5 litres of water in a plastic bucket.
2. dissolve 100 gram of quick lime in 5 litres of water in another plastic bucket.
3. pour the above two mixture from the above two vassels into a third one by gently stirring the mixture all the while.
4. the mixture is to be tested before use for the presence of free copper which is toxic to the plant. dipa a polished knife in the mixture. if the blade shows a reddish colour add more lime to the mixture till the blade does not show staining on deeping.

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