Journalartikel
Autorenliste: PIEPHO, HP; ALKAMPER, J
Jahr der Veröffentlichung: 1991
Seiten: 289-299
Zeitschrift: Journal of Agronomy and Crop Science
Bandnummer: 166
Heftnummer: 5
ISSN: 0931-2250
DOI Link: https://doi.org/10.1111/j.1439-037X.1991.tb00918.x
Verlag: Wiley
Abstract:
The presence of the fish species Cyprinus carpio L., Tilapia nilotica L. and Puntius gonionotus Bleeker in irrigated paddy fields resulted in a reduction of the numbers of sedges and broadleaved weeds at low water levels around 5 cm. On the contrary, weed growth was enhanced at higher water levels. Similar results were obtained for the percentage area covered and the species Marsilea crenata. At low water levels the number of uprooted weeds in rice-fish fields was markedly increased if compared to control fields. This indicates that fish prefer shallow areas of rice fields with more abundant food supplies as a feeding place. In rice-fish fields the water was turbid on 77.8% of the test plots (1 m2) compared to only 47.4% on the control fields. The findings are explained by the combined action of a 'fertilizing effect' and a 'feeding effect', both of which are due to fish.
Zitierstile
Harvard-Zitierstil: PIEPHO, H. and ALKAMPER, J. (1991) EFFECTS OF INTEGRATED RICE-CUM-FISH CULTURE AND WATER REGIME ON WEED GROWTH AND DEVELOPMENT IN IRRIGATED LOWLAND RICE FIELDS OF NORTHEAST THAILAND, Journal of Agronomy and Crop Science, 166(5), pp. 289-299. https://doi.org/10.1111/j.1439-037X.1991.tb00918.x
APA-Zitierstil: PIEPHO, H., & ALKAMPER, J. (1991). EFFECTS OF INTEGRATED RICE-CUM-FISH CULTURE AND WATER REGIME ON WEED GROWTH AND DEVELOPMENT IN IRRIGATED LOWLAND RICE FIELDS OF NORTHEAST THAILAND. Journal of Agronomy and Crop Science. 166(5), 289-299. https://doi.org/10.1111/j.1439-037X.1991.tb00918.x
Schlagwörter
RICE-CUM-FISH CULTURE; WEEDS