c) i. Explain why crop yields may be low when
subsistence farming methods are used.
Answers
Answer:
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Explanation:
A number of factors could be attributed to low crop yield in the country.
The use of recommended seed rate is essential for optimum crop density that is number of plants per unit area.
But farmers use low seed rate owing to which plant population remains low in the field, a major cause of low yield .
To expand production, subsistence farmers need higher-yield seeds, fertilizer, pesticides, and machinery.
Some needed supplies can be secured by trading food with urban dwellers. Sub-Saharan Africa is losing the race to keep food production ahead of population growth.
Answer:
subsistence farming can cause crop yields to be low due to a lack of knowledge. the farmers dont know anything about modern farming methodes and neither can they afford them. hence they use man power and animals to work in the fields they rely on a primitive system of irrigation and they can also not use tractors. the people working in the fields are the families of the farmer, which is mostly an unskilled labor. also, they dont use high yielding varieties of seeds. they only use seeds from previous harvests or buy cheap seeds. they cannot afford any kind of mechanisation and they can also not afford chemical fertilisers and pesticides