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- W110753735 abstract "During the summer of 1994, three series of field trials on row hoeing were carried out in cereals. The results of two of them are shown in this paper. The trials are part in a several years' project aiming to develop improved methods of mechanical weed control The implements used were a rotary hoe equipped with powered hoe wheels, L-shaped shares and duck-foot shares, and a rolling harrow. In the R2-6109 series, row hoeing was studied in winter wheat. The purpose of the trials was to investigate the function of the rotary hoe at normal row spacing, i.e. 12,5 cm. Row hoeing was also carried out at 25 cm row spacing and L-shaped shares were tested too. The treatments were compared with untreated and chemical treatments. In the R2-6114 series, row hoeing at three different row spacing in spring barley were studied, i.e. 12,5 cm, 17 cm and 25 cm. The implements used were a rotary hoe, L-shaped shares and duck-foot shares. The treatments were compared with untreated and chemical treatments. In the R2-6109 series hoeing with a rotary hoe repeated twice at 12,5 cm row spacing resulted in the highest yield. The effect on the weight of the weeds was also good. Galeopsis spp and Polygonum aviculare were the most difficult species to control In the R2-6114 series, treatment with a rolling harrow combined with rotary hoe wheels at 25 cm row spacing had the best effect on the weight of the weeds. The yield was the same as for treatments with rotary hoe. Galeopsis spp, Stellaria media and Polygonum convolvolus were the most difficult species to control The conc1usions of the trials are: • Row hoeing at normal (12,5 cm) row spacing in winter wheat in this year' s trials worked out good considering the effect on weeds and yield. This can be of practical importance since a normal row spacing makes mechanical weed control adjusted to the need possible. • The sensitivity of the weeds to row hoeing in spring barley was in the following order, beginning with the highest sensitivity: Chenopodium album, Polygonum convolvulus, oil plants, Stellaria media and Galeopsis spp. • The sensitivity of the weeds to row hoeing in winter wheat was in the following order, beginning with the highest sensitivity: Chenopodium album, Matricaria inodora, Galeopsis spp. and Polygonum aviculare. • More research and field trials have to be done. It is desirable to evaluate row hoeing in a complete cultivating system where the soil management is taken into consideration." @default.
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- W110753735 date "1995-01-01" @default.
- W110753735 modified "2023-09-27" @default.
- W110753735 title "Radhackning i stråsäd" @default.
- W110753735 hasPublicationYear "1995" @default.
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