Environment and aquaculture in developing countries

Table 2. Supply of inputs to household fishponds.

Input

Elephant grass

Pig excrement

Human excrement

Kitchen and field waste

Sugar cane waste

Concentrates

Fingerlings

Totals

Elephant grass

Pig excrement

Human excrement

Silkworm waste

Kitchen and field waste

Sugar cane waste

Concentrates

Fingerlings

Totals

Elephant graea
Pig excrement
Human excrement
Concentrates
Fingerlings

Totals

Elephant grass
Pig excrement
Human excrement
Fingerlings
Dipterex
Teaseed cake

Totals

Extrapolated Actual application rates

application

rate Produced by household Supplied externally

(t.ha.yea1-l) (t) ($) (%) (t) ($) (46)

7.68

161.60

10.60

19.60

60.60

0.27

12.60

113.60

26.60

8.3

0.00

25.20

8.83

25.25

229.60

30.10

10.10

28.40

34.09

94.84

15.1 6 (kg)

60.60 (kg)

Household 1

Household 2

Household 3

Household 4

0.00 0.00 0.0

0.00 0.00 0.0

0.00 0.00 0.0

135.36 100.0

2.00 (kg) 3.55 100.0

8.00 (kg) 0.73 100.0

Source: Ruddle and Zhong (1 988)