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- W345994605 abstract "Hemp (Canabis sativa L) has been grown in Southern Africa for medicinal purpose for many centuries, but cultivated during the past half century as an illegal drug crop marijuana, “dagga”. Although this plant was declared illegal in South Africa in 1928, its high fibre content warrants more research for the later purpose. Field experiments were conducted during 2006/2007 and 2007/ 2008 seasons at Addo in the Eastern Cape Province. The objective of the study was to determine the influence of nitrogen fertiliSer rates (0. 50, 100 and 150 kg ha-1) on yield and quality of two hemp cultivars viz, Kompolti and Felina/Novosadska. In 2007/2008 Novosadska was used to replace Felina whose fibre was very short. Treatments were four nitrogen levels (0, 50, 100 and 150 kg ha-1) and hemp cultivars (Kompolti and Felina). Data collected from for two cropping seasons included; wet biomass biomass yield (dry), stem diameter, plant height and fibre percentage. There were significantly higher yields in fertilised units than in the control treatments. The highest plant height, fresh and dry biomass yield were obtained with 100 and 150 kg N ha-1 were applied at Addo during 2006/2007. Higher nitrogen levels tended to have an increasing effect on both yield and plant height in both seasons. Of the two cultivars, kompolti performed better than Felina 35 and Novosadska. For stem diameter, only the cultivar effect was significant, similarly the highest diameters were found at 50 and 100 kg N ha-1 for Kompolti in both seasons. The highest fibre percentage the following data were collected from two cropping seasons; wet biomass,biomass yield (dry), stem diameter, plant height and fibre percentage were obtained at 50 kg N ha-1 in 2006/2007; while in 2007/2008 the highest fibre percentage was observed at 100 and 150 kg N ha-1. Kompolti had higher fibre percentage than other cultivars, also Kompolti showed better response in fibre quality parameters (finess, length, strength and colour) in both season." @default.
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- W345994605 date "2011-01-01" @default.
- W345994605 modified "2023-09-26" @default.
- W345994605 title "Performance of hemp cultivars under different nitrogen levels in Eastern Cape Province of South Africa." @default.
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