138
Table 8.3 A synthesis of straw management effects on rice yield in some studies in the Philippines
and Vietnam
Treatment
Rate
Kg
ha
−1
Location/
country
Seasons
a
Soil
description
Grain
yield
b
Mg
ha
−1
Source
No straw
Philippines
Maahas clay
3.2 b
Banta and
Mendoza
(1984)
Straw burned
3.4 b
Straw incorporated
4.1 a
Straw composted
4.2 a
No straw
Philippines
77
Banta and
Mendoza
(1984)
Straw incorporated
5000
112
No straw
IRRI,
Philippines
10 DS
Silty clay
3.79 e Cassman
et al. (1996)
Straw incorporated
116
Silty clay
4.70 d
No straw
Victoria,
Philippines
9 DS
Clay
3.83 d
Straw incorporated
116
Clay
4.93 c
No straw
IRRI,
Philippines
11 WS Silty clay
3.39 d
Straw incorporated
58
Silty clay
3.57 c
No straw
Victoria,
Philippines
9 WS
Clay
3.22 d
Straw incorporated
58
Clay
3.56 c
No straw
Can
Tho –
Vietnam
3 DS
Fluvaquentic
Humaquepts
2.94
Tuyen and
Tan (2001)
Straw burned
2.96
Straw incorporated
2.72
No straw
Can
Tho –
Vietnam
3 DS
5.70
Straw burned
5.50
Straw incorporated
5.59
Raw rice straw
An Giang
Province,
Vietnam
1 DS
2.83 c Son et al.
(2013)
Composted rice straw
2.95 c
Raw rice straw +70%
NPK
4.71 b
Composted rice straw
+70% NPK
5.32 a
Burned rice straw
+70% NPK
4.77 b
Burned rice straw
+100% NPK
5.11 ab
Raw rice straw
+100% NPK
5.30 a
Composted rice
straw+100% NPK
5.33 a
(continued)
P. Chivenge et al.