Discuss the disadvantage of using the broadcast method of ...

[casperchen82]

Discuss the disadvantage of using the broadcast method of planting seeds.
 
  What will be an ideal response?

Question 2

Describe the difference between sprinkler, surface, and drip irrigation.
 
  What will be an ideal response?

[djofnc]

Answer to Question 1

Broadcast seeding scatters the seed in a random pattern on top of the seedbed. The accuracy of seeding
using this type of planter is the poorest of the planting methods. One disadvantage of using broadcast
seeders is that some kinds of seed need to be covered to germinate and to protect them from loss. This
means that a second trip must often be made over the field to cover the seed.

Answer to Question 2

Sprinkler irrigation places the water where it is needed at the time it is needed. The amount of water
that is applied is easily controlled by the length of time that the irrigation system is allowed to operate
on the same setting. Sprinkler irrigation delivers a uniform supply of water to all areas of the field.
Surface irrigation water is delivered to the crop by gravity, flowing over the surface of the soil or in
ditches or furrows. It is an inexpensive means of providing water to crops. However, the cropland may
need to be leveled before it can be irrigated.
Drip irrigation supplies water to the roots of crops in a uniform manner. Use of tubes located either
above or beneath the soil to deliver the water to the crops makes a drip irrigation system expensive to
set up. It has the advantage of low operating costs when in operation, however, and it is the most
efficient use of water.