nitrogen env

Question 1

define eutrophication

Answer 1

change in waterbodies due to enrichment with inorganic plant nutrients

Question 2

what does BOD stand for

Answer 2

biochemical oxygen demand

Question 3

define biochemical oxygen demand (BOD)

Answer 3

measure of oxygen consumption of a water sample for organic matter breakdown

Question 4

define non-point source pollution

Answer 4

coming from many dispersed sources that are difficult to identify or regulate

Question 5

define catchment area

Answer 5

area from which a river or lake derives its water

Question 6

what would the BOD be of clean water (ml O L)

Answer 6

1-2

Question 7

what are the 4 components of spatial scales

Answer 7

field, farm, catchment, river basin

Question 8

what are the N inputs in kg/ha in the Irish grassland system

Answer 8

245kg ha

Question 9

what is the N exit in products (kg/ha) in the Irish grassland system

Answer 9

79 kg ha

Question 10

what is the average N use efficiency % range in the Irish grassland system

Answer 10

29 - 37%

Question 11

what does GBP stand for

Answer 11

global P balance

Question 12

what does PUE stand for

Answer 12

P use efficiency

Question 13

what is the greatest cause of phosphorus losses

Answer 13

surface runoff

Question 14

what is the minimum soiled water storage in days for milk producers

Answer 14

31 days

Question 15

what storage capacity is required for those in zone A

Answer 15

16 weeks

Question 16

what storage capacity is required for those in zone B

Answer 16

18 weeks

Question 17

what storage is required for those in zone C

Answer 17

20 - 22 weeks

Question 18

what storage capacity is required for pigs and poultry

Answer 18

26 weeks

Question 19

how much organic N does a cow under 4,500kg of milk produce

Answer 19

80 kg N
12 P/ha

Question 20

how much N does a cow between 4,500 and 6,500kg milk produce

Answer 20

92kgN/ha
13.6 P/ha

Question 21

how much N does a cow over 6,500 kg milk produce

Answer 21

106kgN/ha
15.8 P/ha

Question 22

what is the stocking rate of commonage under the new rules

Answer 22

50kg organic N

Question 23

what must the crude protein be on concentrates for grazing livestock between 15th April and 30th of September

Answer 23

15%

Question 24

how far away must water troughs or drinking points be located from nearest water course

Answer 24

20 metres

Question 25

how often must derogation farmers complete a soil analysis

Answer 25

every 4 years

Question 26

by what date must 50% of slurry be spread on derogation farms

Answer 26

15th June

Question 27

over what kgN of a stocking rate must farmers apply slurry using LESS

Answer 27

150kgN

Question 28

how often is the nitrates action programme reviewed

Answer 28

every 4 years

Question 29

in what area is the highest amount of none compliances detected

Answer 29

the inadequate collection of livestock manure, other organic fert, soiled water or effluent. makes up 38%

Question 30

what number must the (faecal coliforms) be under in order the classify as the pasteurised product

Answer 30

under 1000

Question 31

what must the soil pH be under in order to be classed as a suitable soil for sludge spreading

Answer 31

5.0

Question 32

what % can the clay content not exceed in order to be classed as a suitable soil for sludge spreading

Answer 32

10%

Question 33

the be class as suitable soil for sludge spreading soil must have low levels of heavy metals

Question 34

how long are sludge producers constraint from harvesting animal fodder on land used for sludge

Answer 34

3 - 6 weeks

Question 35

from what months does the sludge producer need storage for the sludge

Answer 35

from October to February

Question 36

what are the permitted crops for the spreading of sludge

Answer 36

cereals, oil seed rape, grass, forestry

Question 37

what are bottle fed babies at risk of due to nitrogen in the water

Answer 37

methemoglobinemia ( blue baby syndrome)

Question 38

what must the level of nirate be under in drinking water (mg L)

Answer 38

50mg L

Question 39

what % of N in animal manures is lost to the air

Answer 39

15%

Question 40

what % of irelands total greenhouse gases are as a result of agriculture

Answer 40

38%

Question 41

what is the technical abatement potential of the MACC

Answer 41

15 million T

Question 42

what 2 abatements have the greatest potential in the MACC

Answer 42

protected urea LESS

Question 43

with baseline scenario in the MACC by what % will the NH3 emissions increase by

Answer 43

9%