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Rheoliadau Adnoddau Dŵr (Rheoli Llygredd Amaethyddol) (Cymru) 2021

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This is the original version (as it was originally made).

Rheoliadau 9, 36 a 37

ATODLEN 3Cyfrifo’r nitrogen sydd mewn tail organig

RHAN 1Y Tabl Safonol

Cyfanswm y nitrogen mewn tail da byw

Tail ac eithrio slyriCyfanswm y nitrogen ym mhob tunnell (kg)
Tail ac eithrio slyri o’r anifeiliaid a ganlyn—
gwartheg:6
moch:7
defaid:7
hwyaid:6.5
ceffylau:7
geifr:6
Tail o ieir dodwy:19
Tail o dyrcwn neu ieir brwylio:10
SlyriCyfanswm y nitrogen ym mhob metr ciwbig (kg)
gwartheg:2.6
moch:3.6
Slyri gwartheg a wahanwyd (ffracsiwn hylifol)—
blwch hidlo:1.5
wal hidlo:2
hidl fecanyddol:3
Slyri gwartheg a wahanwyd (ffracsiwn solet):4
Slyri moch a wahanwyd (ffracsiwn hylifol):3.6
Slyri moch a wahanwyd (ffracsiwn solet):5
Dŵr budr:0.5

RHAN 2Samplu a dadansoddi tail organig

Slyri a thail organig hylifol a lled-hylifol arall

1.—(1O ran slyri a thail organig hylifol a lled-hylifol arall, rhaid cymryd o leiaf bum sampl, pob un ohonynt yn 2 litr.

(2Yn ddarostyngedig i is-baragraff (3), rhaid cymryd y pum sampl allan o lestr, ac—

(a)os yw’n rhesymol ymarferol, rhaid cymysgu’r slyri’n drwyadl cyn cymryd y samplau, a

(b)rhaid cymryd pob sampl o le gwahanol.

(3Os defnyddir tancer sydd â falf addas arno ar gyfer taenu, caniateir i’r samplau gael eu cymryd wrth daenu, a rhaid cymryd pob sampl fesul ysbaid yn ystod y taenu.

(4Pa un a gymerwyd y samplau fel y disgrifir yn is-baragraff (2) neu (3), rhaid arllwys y pum sampl i mewn i gynhwysydd mwy, eu troi’n drwyadl, a rhaid cymryd sampl 2 litr allan o’r cynhwysydd hwnnw ac arllwys y sampl honno i gynhwysydd glân, llai o faint.

(5Yna, rhaid anfon y sampl 2 litr a baratowyd yn unol ag is-baragraff (4) i’w dadansoddi.

Tail solet

2.—(1O ran tail solet, rhaid cymryd y samplau allan o domen dail.

(2Rhaid cymryd o leiaf ddeg sampl 1 kg yr un, a phob un ohonynt o fan gwahanol mewn tomen.

(3Rhaid cymryd pob un o’r is-samplau 0.5 metr, o leiaf, o wyneb y domen.

(4Os cesglir y samplau i gyfrifo i ba raddau y cydymffurfiwyd â’r terfyn fferm gyfan ar gyfer moch a dofednod, rhaid cymryd pedair sampl i’w dadansoddi mewn blwyddyn galendr (gan gymryd un ym mhob chwarter) o domenni tail nad ydynt yn hŷn na 12 mis oed.

(5Rhaid gosod yr is-samplau ar hambwrdd neu ddalen sy’n lân a sych.

(6Rhaid i unrhyw dalpiau gael eu torri’n ddarnau mân, a rhaid cymysgu’r is-samplau yn drwyadl gyda’i gilydd.

(7Yna, rhaid i sampl gynrychiadol, sy’n pwyso 2 kg o leiaf, gael ei hanfon i’w dadansoddi.

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