Question

seeds are manually sown by

Answer 1

Seeds are manually sown by broadcasting.
In this process,seeds are scattered manually by hand. However, broadcasting sometimes results in improper space between seeds that are sown and sometimes the seeds that are left over the soil are fed up by birds..
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Answer 2

1)The seeds are sown at the correct depth and correct interval. 2)The seeds get covered by soil.Due to this these seeds cannot be picked up and eaten by the birds. 3)The seeds sown with a seed drill are in regular rows. 1)The seeds should be sown at right depth in the soil