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Call No: 631.712 [ All ]

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  Title Copies
Ecological effects of pesticides 
Year: 1977 
Call No: 631.712 
 1 
Nitrogen calculator 
Year: 1980 
Call No: 631.712 
 1 
Study of the impacts of fertilisers on water quality at Slapton Ley South Devon 
Year: 1990 
Call No: 631.712 
 1 
To spray or not to spray? An agricultural simulation and resource material for GCSE Biology and Environmental Studies 
Year: 1990 
Call No: 631.712 
 1 
Two booklets on fertilisers. "Economic case for fertilisers" and "Fertiliser recommendations" 
Call No: 631.712 
 1