depth of Wheat sowing is directly correlated with yield of crop. with the reference if different research papers depth of Wheat sowing discussed.
PAU -
Sow wheat with a seed-cum-fertilizer drill at a depth of 4-6 cm. A spacing of 15-20 cm between the rows gives good yield. Under late sown conditions, row spacing should be 15 cm.
Bi-directional Sowing: Sow the seed a bit shallow i.e. 4 cm deep in
rows 20 cm apart.
PAU Happy Seeder: Sow the crop by keeping depth between 1.5 to 2.0 inch as under:
Zero Drill: Sow wheat at a depth of 4-6 cm
Super Seeder : Sow wheat at a depth of 4-6 cm
Wheat is the most important cereal crop of the world. Wheat grows well in different region in Bangladesh. Wheat cultivation is greatly affected by sowing depth. Sowing depth significantly influenced the seedling emergence and vigor index. Sowing seed deeper than 4 cm delayed & reduced seedling emergence & seed production. Seed placed at 8 cm depth resulted a greater degree (82%) of failure in emergence. Sowing at variable depths causes appreciable differences in grain yield. Sowing deeper than 4 cm greatly reduced grain yield. Plant emerged from 4 cm depth had produced the highest grain yield which was attributed to greater number of spikes per unit area and seeds per spikes. Deeper sowing caused in the number of seminal root but the total root length was significantly reduced. Deep sowing causes unnecessary elongation of stem between the seed and secondary roots. As a result the food reserves of the grain are taxed severely and seedling may even fail to emerge. When sowing at 4 inches reduced emergences by almost 40%.
The aim of the current study was to determine the effects of sowing depths (3, 5, 7, 9 cm) on grain yield and yield components for wheat cultivars during 2004-2006 at one site in Van Province in Eastern Turkey. Grain yield and yield components were found to positively correlate with coleoptile length, with marked declines observed in grain yield and yield components among varieties with shorter coleoptiles in deepest sowing. Wheat sown at 5 cm gave greater yields than wheat sown at 3, 7 and 9 cm by 19.9, 22.3 and 62.5%, respectively. The highest grain yield (2.98 T ha -1) was obtained with the Alparslan cultivar sown at a depth of 5 cm. Grain yield of all varieties tested was drastically reduced when sown at depths of 9 cm, with the exception of the local Tir and Alparslan varieties, both of which, when compared to the other varieties tested, had longer coleoptiles.


#wheat
#sowing
#depth
#yield

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