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(a) Give three reasons why it is difficult to control Sodom apple; Solanum incanum. (b) State two mechanical methods used in separating soil in...

(a) Give three reasons why it is difficult to control Sodom apple; Solanum incanum.
(b) State two mechanical methods used in separating soil in soil analysis

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john
a) Three reasons why it is difficult to control Sodom apple; Solanum incanum.
- Seed remain viable for long time.
- Have effective mechanism of dispersal
- Have elaborate rooting system. (3 marks)
(b) Two mechanical methods used in separating soil in soil analysis. (2 marks)
a. Mixing soil with water then shaking/sedimentation method.
b. By use of series of sieve/sieving method
john3 answered the question on December 15, 2017 at 06:08

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