1011. zadaci

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  • 1112

  • ,7t/ha,21mg/100gP2O5,25mg/100g2O,,6,5t/ha. =7t/ha P2O5=21mg/100g 2O =25mg/100g Rp =6,5t/ha

  • mg/100g P2O5

    K2O , %P2O5 K2O

    () () 5 5 (+100-200% ) 100

    () 5-10 5-10 (+30-50% )

    80-90

    ( ) 10-15 10-15 (+10-30% )

    60-70

    ( ) 15-25 15-25 ( )

    50-60

    ( ) 25-40 25-40 ( 20-30% )

    30-40

    ( )

    40-50 40-50

    ( 1-3 )

    1-3

    () 50 50

    . ,

    . 2. (AL , Egner, Riehm, 1958) (, 1988)

  • .17t/ha : N26kg/t*7t/ha=182kg/7t/ha P2O511kg/t*7t/ha=77kg/7t/ha 2O25kg/t*7t/ha=175kg/7t/ha

    5060%:

    N182kg/ha P2O577kg/ha 2O88 kg/ha

    (.4):

    N0 kg/ha P2O532,5 kg/ha (1t 5kg=6,5t xkg) 2O130 kg/ha(1t 20kg=6,5t xkg)

  • 7t/ha:

    N182 0 =182kg/ha P2O577 32,5 =44,5kg/ha 2O88 130 = 42kg/ha

    : N182kg/ha P2O544,5~ 45 kg/ha 2O0kg/ha

  • kg/t

    N P2O5 K2O CaO MgO

    26 13 22 5 4

    ` 24 12 26 6 4

    22 14 23 8 3

    28 12 29 6 4

    26 11 25 6 8

    4 2 6 2 1

    35 30 55 62 5

    51 28 51 52 10

    70 15 28 28 7

    60 15 35 30 6

    58 15 35 22 5

    66 15 35 18 6

    67 17 36 16 7

    62 15 30 25 5

    28 7 18 29 3

    28 5 18 20 5

    5 2 8 3 1

    14 2 14 3 -

    3 1 4 4 -

    3 1 3 1 -

    3 1 4 5 -

    4 2 4 1 -

    2 1 5 1 -

    2 1 3 1 -

    3 1 4 3 -

    1.

  • kg/t

    N P2O5 K2O MgO

    - 4,0 13,0 2,0

    - 3,0 15,0 2,0

    - 3,0 12,0 1,0

    - 4,0 25,0 2,0

    - 10,0 50,0 7,0

    - 5,0 20,0 4,0

    10,0 7,0 27,0 1,0

    10,0 7,0 17,0 1,0

    - 0,3 1,0 0,8

    0,3 0,3 2,0 0,5

    0,3 0,8 4,7 0,7

    4. (BASF, 1991)

  • =/m2 (ha)/1000

    =(%)(%)/100

    =(kg)/100=(kg/ha)

  • 600/2,35g,98%95%.

    =600/m235g/1000 =21g/m2

    21g/m2 10000=210000g/ha=210kg/ha

    =98 95/100 =93,1%

    =210kg/ha/93,1%x100=226kg/ha(93%)

    Slide Number 3Slide Number 4Slide Number 5Slide Number 6Slide Number 7