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112477
General Nutrient Principles
Description
Advanced Agronomy (Nutrients) Mind Map on General Nutrient Principles, created by labradorlass on 28/05/2013.
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advanced agronomy
nutrients
advanced agronomy
nutrients
Mind Map by
labradorlass
, updated more than 1 year ago
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Created by
labradorlass
over 11 years ago
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Resource summary
General Nutrient Principles
soil supply + fert
plant nutrient requirement
crop requirement - soil supply
fert required
potential yield x nutrient content
crop requirement
80% of OSR received sulphur last year
E-on state that desulphurisation towers reduce SO2 emissions by 92%
hence reduce natural soil levels
RB209 not enforced but states best practice
assess crop requirements
assess nutrient supply from soil
every 4 years
SNS annually
allow for nutrients from FYM
only apply what is needed
ensure nutrient losses are minimised
lost profit
more pollution
difference between maximum and optimum
FACTS
learn RB209
FQA - professionally liable
sustainable use directive
Fert use survey every march
British Survey of Fertiliser practice 2011
Approx 100kg/ha of N
N use in grass has decreased
economic
more efficient
area reduction
increase in manure use
P and K decrease
on grassland and arable
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