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- W2013885887 abstract "Abstract Cultural practice trials have been conducted in east Sudan since 1986 to demonstrate that Vertisols can be managed successfully for sorghum production using only shallow tillage (0.08 m depth) or manual no-till planting. The trials have compared tillage inputs and crop yields (outputs) of traditional manual no-till planting methods with shallow overall weeding tillage, using tractor-drawn shallow discing (one-way or wide-level discs) at three levels of manual weeding (none, once and twice). Four systems of field preparation were compared: (1) manual operations with broadcast seeds; (2) manual operations with row planting using the Saluka planting stick; (3) broadcast seed using tractor-drawn one-way discs; (4) crops planted in rows using the one-way discs fitted with a seed box. The results for three consecutive growing seasons, with very different total rainfall and distribution, show that (1) early weed control after planting has a very significant influence on grain yield; (2) shallow discing provides effective weed control and reduces the need for subsequent manual weeding; (3) crop yield is related to rainfall distribution rather than the seasonal total. These results confirm and justify the need for long-term tillage trials to clarify the temporal effect climate has upon crop yield and the local economy in semi-arid regions." @default.
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- W2013885887 date "1992-07-01" @default.
- W2013885887 modified "2023-09-27" @default.
- W2013885887 title "An evaluation of sustainable cultural practices for rainfed sorghum production on Vertisols in east Sudan" @default.
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- W2013885887 doi "https://doi.org/10.1016/0167-1987(92)90100-p" @default.
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