Question

disadvantage of sowing with seed drill​

Answer 1

Answer:

Less reliable establishment than for seedlings on some sites and across seasons. ...

There is a requirement of some species for a special seed treatment before sowing.

There is a low survival rate of viable seed.

Explanation:

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Answer 2

Answer:

Disadvantages of seed drill technique are:

This method is extremely expensive general statures farmers cannot afford for the machinery used for drilling.

There is a need of skilled worker to maintain the machinery and carry - on the procedure of drilling.