Method of Sowing

Soybean is sown in rows on a flat bed either in a well-prepared field or as a no-till crop. It is also sown on raised beds. In some areas it is grown as a sole or mixed crop, while in others intercropping with cereals, oilseeds, grain legumes and fibre crops is also practised.

The crop should be sown using a drill as this ensures the desired spacing (between as well as within rows) and depth, thus resulting in the proper plant stand and consequently higher yields than a crop sown by the

Table 7.5. Seed yield (kg ha-1) of soybean as influenced by planting methods under two pre-plant tillage methods at two locations in the USA (adapted from Popp et al., 2000).

Location

Conventional tillage

Conservation tillage

Broadcast sowing

Conventional drill sowing

Broadcast sowing

No-till drill sowing

Keiser (full-season)

3270

3300

3060

3340

Pine Tree (full-season)

1410

1490

1390

1440

Pine Tree (double-crop)

1430

1510

1380

1660

broadcast method. Drill sowing is more important in conservation tillage systems than with conventional tillage (Table 7.5).

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