Question

what are the factors of agriculture​

Answer 1

Answer:

Temperature:

Most plants cannot grow if the temperature falls below 6°C or the soil is frozen for five consecutive months. As a consequence many areas are unsuitable for crop cultivation.

2. The growing season:

• The number of days between the last frost of the spring and the first of the autumn. Different crops require different lengths of growing season. Cotton needs 200 days so could not survive in a British climate. Cereal crops are grown in the South-east of Britain as this is the area most likely to meet the necessary growing season. The shorter the required growing season the further north that crop can be grown. Oats can be found in Northern parts of the UK because they have a very short growing season

3. Altitude:

• This affects temperature so it also affects farming. In the Alps for example you will find dairy farming in valley bottoms and coniferous forestry further up.
• When temperatures are consistently high with sufficient precipitation high yield crops such as rise can be grown. These have the added advantage of producing up to three crops a year.
• 4. Rainfall:

• Water is obviously a key factor in plant growth. The greater the average temperature the greater the amount of water required for plant growth. Seasonal variation is important as different crops require water at different times. Coffee for example must have a period of drought before and during harvest whilst maize would benefit from heavy rain in the same period. A farmer is therefore looking for rainfall reliability so that he can select the most appropriate crop for the area.

• Rice is the principal crop in the tropics because it requires substantial quantities of water, is a very high yield crop and has good nutritional value. With the addition of consistently high temperatures it can also produce two or three crops a year.

• In the Mediterranean crop growth is affected by the summer drought despite high annual rainfall. The rainfall is very high in winter months but infiltration rates are comparatively low. In summer temperatures are very high, encouraging high rates of evapo-transpiration and consequently very dry soil and a low water table. There is a soil moisture deficit. These conditions are not conducive to plant growth.
• 5. Wind:
• Wind can have a destructive effect on crops. At its most severe a hurricane can physically destroy thousands of acres of farmland. Less severe but also harmful are the winds that dry soils so reducing moisture and increasing the potential for soil erosion.
• Soil
• Soil type will influence crop cultivation because different crops prefer different soils.

• Clay soils with their high water retention are well suited to rice whilst sandy soils with good drainage are good for root vegetables.

• Soil type can be influenced through the input of lime, clay or fertilizer but this can only make limited differences.

Slope

• The angle of slope will affect the type, depth and moisture content of soil.

• It will also affect the rate of soil erosion. Some of the most unique farming landscapes of Bali are a consequence of having to cultivate steep slopes that are prone to soil erosion. Here terraces are cut in to steep slopes to retain the soil that otherwise would be easily removed due by the heavy rains. The need to cultivate such steep slopes is a consequence of population pressure and very small farms due generations of sub-dividing amongst sons.

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