Abstract
The study was carried out in the experimental filed of the Maize Research Institute, Zemun Polje, on calcareous chernozem in the period 2001-2003. The traits of two maize inbred lines (L1-FAO 400 and L2-FAO 600) were observed in dependence on the time of the nitrogen application (No-control without fertilizing; Nautumn - 60 kg P2O5 ha-1 and 60 kg K2O ha-1 applied in autumn (const) + 100 kg N ha-1 (applied in autumn); Nspring - PK (const) + 100 kg N ha-1 (applied in spring); N1/2 - PK (const) + 100 kg N ha-1 (half of which was applied in autumn and the other half in spring); N1/2-PK (const) 100 kg N ha-1 (1/3 of which was applied in autumn, 1/3 in spring and 1/3 through soil dressing); Nmin - PK (const) + fertilizing in spring on the basis of the Nmin method, and forms of applied nitrogen: Urea (amide form) KAN (ammonium-nitrate form) and (NH4)2SO4 (ammonium form). The highest average yield was obtained by the use of Nmin method (3,486 kg ha-1), as well as, 100 kg N ha-1 applied in sprig (Nspring) (3,337 kg ha-1), 100 kg N ha-1 applied in autumn and spring (N1/2) (3,020 kgha-1) and 100 kg N ha-1 applied in autumn, spring and soil dressing (N1/3) (3,005 kg ha-1) in the ammonium-nitrate form (KAN). The highest average seed yield of observed maize inbred lines (3,264 kg ha-1) was obtained by the application of ammonium-sulphate in the primary tillage (Nautumn). The use of the Nmin method (N ranging from 17 to 35 kg ha-1, in dependence on the soil mineral nitrogen content), especially in years with lower precipitation sums resulted in the highest increase in seed yield (39.2%) of observed maize inbred lines in relation to the control.
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Claims 6
Claim · model-written summary
Nmin-method nitrogen gave the highest average yield of maize inbred lines (3,486 kg/ha).
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“two maize inbred lines seed yield”
e1“The highest average yield was obtained by the use of Nmin method (3,486 kg ha-1), as well as, 100 kg N ha-1 applied in sprig (Nspring) (3,337 kg ha-1), 100 kg N ha-1 applied in autumn and spring (N1/2) (3,020 kgha-1) and 100 kg N ha-1 applied in autumn, spring and soil dressing (N1/3) (3,005 kg ha-1) in the ammonium-nitrate form (KAN)”
Claim · model-written summary
Nitrogen applied in spring (100 kg/ha, Nspring) gave a high average yield of 3,337 kg/ha.
- Treatment
- 100 kg N ha-1 applied in sprig (Nspring)e1
- Outcome
- average yielde1
- Direction
- higherinferrede1
- Value
- 3,337 kg ha-1e1
- Qualifier
- in the ammonium-nitrate form (KAN)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“two maize inbred lines seed yield”
e1“The highest average yield was obtained by the use of Nmin method (3,486 kg ha-1), as well as, 100 kg N ha-1 applied in sprig (Nspring) (3,337 kg ha-1), 100 kg N ha-1 applied in autumn and spring (N1/2) (3,020 kgha-1) and 100 kg N ha-1 applied in autumn, spring and soil dressing (N1/3) (3,005 kg ha-1) in the ammonium-nitrate form (KAN)”
Claim · model-written summary
Nitrogen split between autumn and spring (N1/2) gave a high average yield of 3,020 kg/ha.
- Treatment
- 100 kg N ha-1 applied in autumn and spring (N1/2)e1
- Outcome
- average yielde1
- Direction
- higherinferrede1
- Value
- 3,020 kgha-1e1
- Qualifier
- in the ammonium-nitrate form (KAN)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“two maize inbred lines seed yield”
e1“The highest average yield was obtained by the use of Nmin method (3,486 kg ha-1), as well as, 100 kg N ha-1 applied in sprig (Nspring) (3,337 kg ha-1), 100 kg N ha-1 applied in autumn and spring (N1/2) (3,020 kgha-1) and 100 kg N ha-1 applied in autumn, spring and soil dressing (N1/3) (3,005 kg ha-1) in the ammonium-nitrate form (KAN)”
Claim · model-written summary
Nitrogen split among autumn, spring and soil dressing (N1/3) gave a high average yield of 3,005 kg/ha.
- Treatment
- 100 kg N ha-1 applied in autumn, spring and soil dressing (N1/3)e1
- Outcome
- average yielde1
- Direction
- higherinferrede1
- Value
- 3,005 kg ha-1e1
- Qualifier
- in the ammonium-nitrate form (KAN)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“two maize inbred lines seed yield”
e1“The highest average yield was obtained by the use of Nmin method (3,486 kg ha-1), as well as, 100 kg N ha-1 applied in sprig (Nspring) (3,337 kg ha-1), 100 kg N ha-1 applied in autumn and spring (N1/2) (3,020 kgha-1) and 100 kg N ha-1 applied in autumn, spring and soil dressing (N1/3) (3,005 kg ha-1) in the ammonium-nitrate form (KAN)”
Claim · model-written summary
Ammonium-sulphate applied in primary tillage (autumn) gave the highest average seed yield of maize inbred lines (3,264 kg/ha).
- Material
- maize inbred linese2
- Treatment
- application of ammonium-sulphate in the primary tillage (Nautumn)e2
- Outcome
- average seed yielde2
- Direction
- higheste2
- Value
- 3,264 kg ha-1e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“two maize inbred lines seed yield”
e2“The highest average seed yield of observed maize inbred lines (3,264 kg ha-1) was obtained by the application of ammonium-sulphate in the primary tillage (Nautumn)”
Claim · model-written summary
Nmin-method nitrogen increased maize inbred line seed yield by 39.2% relative to control, most in dry years.
- Treatment
- use of the Nmin methode3
- Outcome
- seed yielde3
- Direction
- highest increasee3
- Value
- 39.2%e3
- Qualifier
- especially in years with lower precipitation sumse3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“two maize inbred lines seed yield”
e3“The use of the Nmin method (N ranging from 17 to 35 kg ha-1, in dependence on the soil mineral nitrogen content), especially in years with lower precipitation sums resulted in the highest increase in seed yield (39.2%) of observed maize inbred lines in relation to the control”
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