Agriculture Reference
In-Depth Information
(b)
Tree crop combinations a
1
2
3
4
5
6
1 1.8 b 3.5 0 3.5 0 0
2 0 3.5 3.5 0 0 3.5
3 1.8 0 0 1.8 5.3 5.3
4 1.8 1.8 1.8 3.5 0 1
5 1.8 1.8 1.8 3.5 0 0
6 1.8 3.5 0 3.5 7.0 22.8
7 0 0 3.5 0 0 7.0
a Tree/non-tree crop combinations 1-5: at least one tree crop or one non-tree crop species predomi-
nates (see under a);
Tree/non-tree crop combination 6: true mixture of tree crop or non-tree
crop species (see under a);
Non-tree crop combination 7: no non-tree crops present (i.e. only trees).
b data presented as a percentage; n = 57.
(c)
Type of crop combination
Lowlands
Hilly lowlands
Uplands
Moldero
n = 14
Malibabag
n = 10
Namnama
n = 10
Baliuag
n = 10
Dy Abra
n = 13
Tree crops
1
7
10
10
10
0
8
0
0
8
84
2
14
0
50
0
3
7
10
0
40
4
22
60
0
0
5
14
10
20
10
6
36
10
20
40
Non-tree crops
1
22
0
10
0
0
8
0
0
8
84
8
2
7
10
10
20
3
42
10
0
10
4
0
20
20
10
5
0
40
10
0
6
22
20
50
60
7 (None)
7
0
0
0
percent is dominated by one or more species among either the trees (tree-based
system Type 1 to 5 with some vegetable or tuber species, i.e., Type 6 non-tree crop
combination) or the non-tree crops (vegetable and/or tuber-based system Type 1 to
5 with some tree species, i.e., Type 6 tree crop combination). The remaining 42.4
percent is characterized by a predominance of at least one tree crop and one non-
tree crop species (remaining combinations).
The trees and non tree crops are not necessarily planted in one mixture on the same
field, as in intercropping systems. Most trees are actually planted along boundaries or
in garden sections specifically reserved for trees. Few farmers plant trees within fields
with non-tree crops like eggplant, squash ( Cucurbita maxima ), cassava ( Manihot escu-
lenta ) or pineapple ( Ananas comosus ), except when fields will be converted into a pure
 
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