i. Produce large quantities of seeds.
ii. Seeds remain viable for a long time.
iii. Some have effective mechanisms of dispersal.
iv. Some weeds have ability to propagate both by seeds and vegetative.
v. They have elaborate root system.
vi. Have underground structures storage/difficult to control.
vii. Some are able to compress their life cycle.
viii. Some are allelopathic.
gideon1 answered the question on October 11, 2017 at 07:19
- State four factors to consider when grading tomatoes for fresh market(Solved)
State four factors to consider when grading tomatoes for fresh market
Date posted: October 11, 2017. Answers (1)
- State two advantages of tissue culture in crop production.(Solved)
State two advantages of tissue culture in crop production.
Date posted: October 11, 2017. Answers (1)
- State four characteristics of clay soils.(Solved)
State four characteristics of clay soils.
Date posted: October 11, 2017. Answers (1)
- State two benefits of having correct plant population in annual crops(Solved)
State two benefits of having correct plant population in annual crops
Date posted: October 11, 2017. Answers (1)
- State four reasons why farmers are advised to use certified seeds(Solved)
Give reasons for using certified seeds for planting.
Date posted: October 11, 2017. Answers (1)
- List two forms of collective land tenure system.(Solved)
List two forms of collective land tenure system.
Date posted: October 11, 2017. Answers (1)
- State four reasons why the Kenya government set up settlement schemes after independence.(Solved)
State four reasons why the Kenya government set up settlement schemes after independence.
Date posted: October 11, 2017. Answers (1)
- Define the term opportunity cost.(Solved)
Define the term opportunity cost.
Date posted: October 11, 2017. Answers (1)
- State two aspects of light a farmer should consider when deciding which crop to grow(Solved)
State two aspects of light a farmer should consider when deciding which crop to grow
Date posted: October 11, 2017. Answers (1)
- A part from good transport and communication identify four other human factors that influence agriculture.(Solved)
A part from good transport and communication identify four other human factors that influence agriculture.
Date posted: October 11, 2017. Answers (1)
- State two ways in which good transport and communication influences agriculture.(Solved)
State two ways in which good transport and communication influences agriculture.
Date posted: October 11, 2017. Answers (1)
- Outline two conditions that favours nomadic pastoralism in Kenya.(Solved)
Outline two conditions that favours nomadic pastoralism in Kenya.
Date posted: October 11, 2017. Answers (1)
- Differentiate between settlement and resettlement.(Solved)
Differentiate between settlement and resettlement.
Date posted: October 11, 2017. Answers (1)
- Explain how the following land reforms are carried out:
(i) Land consolidation.
(ii) Land adjudication and registration.(Solved)
Explain how the following land reforms are carried out:
(i) Land consolidation.
(ii) Land adjudication and registration.
Date posted: October 11, 2017. Answers (1)
- What are the objective of land tenure reforms in Kenya?(Solved)
What are the objective of land tenure reforms in Kenya?
Date posted: October 11, 2017. Answers (1)
- What is Land reform?(Solved)
What is Land reform?
Date posted: October 11, 2017. Answers (1)
- Describe the process of water treatment using a mechanical treatment plant.(Solved)
Describe the process of water treatment using a mechanical treatment plant.
Date posted: October 11, 2017. Answers (1)
- What is the importance of treating water before use.(Solved)
What is the importance of treating water before use.
Date posted: October 11, 2017. Answers (1)
- State the importance of water to plants.(Solved)
State the importance of water to plants.
Date posted: October 11, 2017. Answers (1)
- Why is it not recommended to replace potatoes with tomatoes in a rotational programme?(Solved)
Why is it not recommended to replace potatoes with tomatoes in a rotational programme?
Date posted: October 11, 2017. Answers (1)