Parametera

Aman 2009

Aman 2010

Aman 2011

Boro 2009-10

Boro 2010-11

Boro 2011-12

Seed rate on seed bed, range (g∙m−2)

142 - 160

140 - 155

145 - 157

158 - 167

160 - 168

155-164

Seed rate to transplant 1 ha main field (kg)

55 ± 5

45 ± 7

50 ± 5

58 ± 4

49 ± 7

46 ± 6

Seedling age, range (days)

35 - 44

32 - 40

36 - 39

49 - 60

48 - 55

50 - 59

Hill spacing at transplanting (cm)

Random

Random

Random

Random

Random

Random

Seedling number (hill−1)

5 - 8

5 - 9

5 - 8

5 - 7

5 - 8

5-8

Fertilizer management

N applied at basal

Farmer (%)

0

0

0

0

0

0

Amount ± S.D. (kg∙ha−1)

0

0

0

0

0

0

N applied at early tillering

Farmer (%)

100

100

100

100

100

100

Time ± S.D. (DAT)

15 ± 2

14 ± 2

18 ± 3

15 ± 4

16 ± 3

13 ± 4

Amount ± S.D. (kg∙ha−1)

34 ± 9

33 ± 7

24 ± 6

39 ± 6

40 ± 4

43 ± 3

N applied at late tillering

Farmer (%)

100

100

100

100

100

100

Time ± S.D. (DAT)

25 ± 3

30 ± 3

28 ± 4

30 ± 3

32 ± 5

37 ± 4

Amount ± S.D. (kg∙ha−1)

37 ± 5

45 ± 5

39 ± 8

42 ± 4

36 ± 3

40 ± 4

N applied at panicle initiation

Farmer (%)

100

100

100

100

100

100

Time ± S.D. (DAT)

40 ± 4

43 ± 2

39 ± 3

46 ± 3

41 ± 5

45 ± 4

Amount ± S.D. (kg∙ha−1)

28 ± 6

24 ± 3

21 ± 3

34 ± 7

33 ± 4

33 ± 4

Fraction of total N applied

At basal (%)

0

0

0

0

0

0

At early tillering (%)

34

32

29

34

37

37

At late tillering (%)

37

44

46

36

33

35

At panicle initiation (%)

28

24

25

30

30

28

P applied

Farmer (%)

100

100

100

100

100

100

Amount ± S.D. (kg∙ha−1)

7 ± 2

7 ± 2

7 ± 1

19 ± 4

14 ± 2

19 ± 4

K applied

Farmer (%)

100

100

100

100

100

100

Amount ± S.D. (kg∙ha−1)

14 ± 6

12 ± 3

16 ± 4

36 ± 3

40 ± 10

37 ± 5

S applied

Farmer (%)

0

0

0

80

100

100

Amount ± S.D. (kg∙ha−1)

0

0

0

5 ± 3

5 ± 3

6 ± 1

Zn applied

Farmer (%)

0

0

0

40

60

40

Amount ± S.D. (kg∙ha−1)

0

0

0

1 ± 1

1 ± 1

1 ± 1