Development and evaluation of a seed drill for bed planting of wheat

Sheikh El Din A/G El-Awad, Mohamoud Abdallah Mohamoud

Abstract


A field experiment was conducted at the Gezira Research Station, Wad Medani, Sudan for two seasons (2006/07 and 2007/08). It was laid out in a randomized complete block design with three replications. The objectives were to develop and evaluate a seed drill for bed planting of wheat that performs beds of 80 cm and sowing of wheat in three rows at spacing of 15 cm apart in a single pass. The machine was developed to replace the traditional seeding machine, enhance wheat seeding method in the short winter season, reduce the cost of crop establishment and improve crop growth. It was tested with the seed rates of 72, 107 and 143 kg/ha and compared with the traditional sowing methods (the conventional seed drill on flat and seed broadcasting + 80 cm ridges). No significant differences between treatments were evident in the soil bulk density and its corresponding soil moisture content for the two seasons. Results showed that the bed planting seed drill reduced the time for wheat seeding operation by about 42%. The developed bed planting seed drill with 72 and 107 kg/ha seed rates resulted in highly significant (P = 0.01) spike length in the first season only, whereas in the second season, it gave significantly (P = 0.05) lower crop emergence/m2 and significantly (P = 0.05) higher plant height.

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