 | 566 páginas
Journal of Tropical Geography 21 : 21-29 . Agriculture in Sarawak . 1965. Trop . Abs . 21 : 2008 . Shifting cultivation with hill rice as the main crop . ( 67 MAUDE , A. Shifting cultivation and population growth in Tonga . | |
 | Iica - 160 páginas
( 66 Agriculture in Sarawak . Journal of Tropical Geography 21 : 21-29 . 1965. Trop . Abs . 21 : 2008 . ( 67 Shifting cultivation with hill rice as the main crop . MAUDE , A. Shifting cultivation and population growth in Tonga . | |
 | 168 páginas
( 66 Journal of Tropical Geography 21 : 21-29 . Agriculture in Sarawak . 1965. Trop . Abs . 21 : 2008 . Shifting cultivation with hill rice as the main crop . ( 67 MAUDE , A. Shifting cultivation and population growth in Tonga . | |
 | 326 páginas
Small farms , shifting agriculture , coffee , livestock , forest exploitation . Conflicts with Other Sectors Sloping terrain should be reforested or managed as protected watersheds . Intensive horticulture needs to be carried out on ... | |
 | 250 páginas
Small farms , shifting agriculture , coffee , livestock , forest exploitation . Conflicts with Other Sectors Sloping terrain should be reforested or managed as protected watersheds . Intensive horticulture needs to be carried out on ... | |
 | 362 páginas
... the tree phase in different systems of cultivation ( including shifting cultivation ) either by natural promoting natural regeneration ) or artificial means ( by planting ) , to favour certain tree species in detriment to others . | |
 | 362 páginas
efficiency of those systems with an aim of evaluating and , if possible , improving their productivity so that the ... in directing the tree phase in different systems of cultivation ( including shifting cultivation ) either by natural ... | |
 | 48 páginas
... or shifting agriculture with disastrous results on the environment , due mainly to the erosion of the soils . ... On the other hand , automated agricultural cultivation represent approximately near 13 million hectares , which ... | |
 | 50 páginas
... or shifting agriculture with disastrous results on the environment , due mainly to the erosion of the soils . ... On the other hand , automated agricultural cultivation represent approximately near 13 million hectares , which ... | |
 | 36 páginas
Interesting data in this respect are given by Watters in his F.A.0 . report dealing with shifting cultivation in Feru ( 4 ) . One of the points brought out in this report is the need of preliminary investigations to avoid occasional ... | |
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