Effect of plant population density of sweet potato (Ipomoea batatas(L.) LAM) on weed incidence and severity in Cameroon

Autor:	J. T. Ambe
Rok vydání:	1995
Předmět:	Biology medicine.disease_cause Ipomoea biology.organism_classification Population density Cultural control Horticulture Agronomy Insect Science Yield (wine) Infestation medicine Weed Convolvulaceae Agronomy and Crop Science Hectare
Zdroj:	International Journal of Pest Management. 41:27-30
ISSN:	1366-5863 0967-0874
Popis:	Three improved sweet potato (Ipomoea batatas (L.) LAM) varieties: 1112, Tib1 and Tis 2498, were grown at 10000 20 000 and 30 000 plants per hectare to check on yields and weed incidence and severity. The trial was carried out for 2 years with two crops per year. Var. 1112 outyielded the other varieties at all cropping seasons, giving a mean tuber yield of 34.4 and 17.3 t/ha for the first and second seasons respectively. A density of 20 000 plants per hectare gave the highest mean tuber yield of 29.6 and 18.7 t/ha for the first and second seasons respectively. With 10 000 plants per hectare, and two handweedings there was the greatest weed incidence and severity, which decreased yields because of competition. At high densities, very low weed incidence and severity, and corresponding higher tuber yields were recorded. A density of 20 000 plants per hectare is recommended for the varieties used in the studied area.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e362ba59525bb1fb1c36f1c0cf691b9a https://doi.org/10.1080/09670879509371917 Zobrazit plný text záznamu