39

40

41

42

43

44

45

21

308

WCS

193

226

46

47

193 308226

308

48

49

50

51

52

53

54

55

56

18

57

(18 62

(77%)

(18%)

(5%)

3,255)

J3,413

)

V3,676

XAX4,590

)

XAX

A 40

(19

18

58

(20 30a18 30a 60% 7.5%,

2007 Sample Costs to Produce Rice

117.76 2007100

(18 USDA ERS:Data sets Commodity Costs and Returns (2006)

Characteristics and Production costs of U.S.rice farms(2004) Rice Backgrounder (2006)

116.3(2006

107.8(2000

59

30 40

30

200

60

61

10a 1950

62

116.3 (2006107.8 (2000

N) P)K) NPK)

(18USDA ERS:Data sets Commodity Costs and

Returns (2006)

Characteristics and Production costs of U.S.rice farms (2004)

63

BB

64

61%

65

10 9

10 9

66

(18USDA ERS:Data sets CommodityCosts and Returns (2006)

Characteristics and Production costs of U.S.ricefarms (2004)

116.3 (2006

107.8 (2000

67

68

69

70

71

72

73

74

ha 7.5%10

30

1h

30

ha

10

H18.3 60.5%

( )18 )

17

75

H14

12.9%4.5% 7.2%

10.8%

2.9%5.4%

10.1% 10.7%11.2%

15%

12.6%

H20 H24 5 H19

76

6 5

10

25 10

H20.5.23

2.051.90

1025

77

78

79

80

/28

81

82

83

84

S17 H .10 H7.11 H16.3 H16.4

85

95

86

1

87

( /60kg)

( /60kg)

8 2

88

89

10 15

10 15 10

106102 10599 10195 98

10

11

10

90

91

92

93