Study of Agricultural Systems

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THE GREAT PLAINS OF THE UNITED STATES:

EXTENSIVE COMMERCIAL AGRICULTURE

 Introduction:

Extensive commercial agriculture is where the amount of labour is still limited but the input of capital may be high. The farms are large in comparison to the money injected into them or the labour used. The cereal and grain productions of the Great Plains in the USA are a good example of extensive agriculture, where often only a few farm workers are responsible for thousands of acres of farmland. The yields per hectare are often low while the output per farmer is high. These cereals and grains, produced on a large scale, provide a staple diet for the population.


 Case study:

Extensive commercial farming is carried out in the Great Plains of the USA. This system of farming makes up for relatively low crop yields by increasing the scale of production. Vast holdings are cultivated and improvements in technology for irrigation, different strains of cereals, machinery and agrochemicals has seen output soar, causing large surpluses.

Extensive commercial agriculture is quite an effective agricultural system. Inputs include temperature, precipitation, wind, altitude, slope, and soils because these are all factors which may alter the level of output. As well, the input of capital, farm size, technology, governmental aid and support, and markets are contributing factors. The labourer’s age, knowledge and experience also plays an immense role in agriculture.

Productivity per hectare is low but per farm worker is high.

        In the Great Plains, the physical inputs are favourable for cereal and grain production because the temperature is not extreme, the level of precipitation is adequate and the winds are not too tough. The conditions of the area allow a better production rate as compared to those with extreme climates.

The rural Plains has lost a third of its population since 1920. Several hundred thousand square miles of the Great Plains have fewer than six persons per square mile. Many have fewer than two persons per square mile. This problem is often intensified by the consolidation of farms and the difficulty of attracting modern industry to the region. As a result of such a small population in this particular area, there is a small input of labour. However, due to the USA’s extremely successful economy as reflected by its high GDP (ranked 1st amongst all nations), the amount of capital is high. As well, the input of capital has always been high in the Great Plains as farming is highly mechanized. Mechanization has reduced the need for labour. The combined factors – small labour force, large amount of capital, and the large area of land – lead to a high yield per hectare despite the low output per farmer.

Before the American mid-west was settled, vast areas of land were divided into geometric patterns by teams of surveyors. The land was divided into townships of 36 'sections', six miles by six miles. Each settler was given a quarter-section, provided he built a house on the land. Railway lines and, later, roads were all-important in getting farm inputs to the area and farming outputs to markets.

From the 1950s, on, many areas of the Great Plains have become productive crop-growing areas because of extensive . The southern portion of the Great Plains lies over the , a vast underground layer of water-bearing strata dating from the last .  is used extensively in drier sections of the Great Plains, resulting in  depletion at a rate that is greater than the ground's ability to recharge. The main farming activities centre on the monoculture of cereal cash crops in very large open fields and very high reliance on machinery and technology.

There are both physical and human factors which have led to these farming activities. Physical factors include the immense areas of land available, as well as the marginal climate which is not suited to more intensive types of farming. Human factors include low population density, so there is little pressure on the land to be used for other purposes. The land is relatively cheap, so large areas can be purchased. An increase in the use of contract labour, especially at harvest times, reflects the small labour force employed full-time on farms.

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        In conclusion, extensive commercial farming is a sustainable and stable form of agriculture because the level of input is very similar to the level of output, which creates stability. Equilibrium is maintained and reinvestment and innovation returns to the system. This works as a cycle, where income from outputs allows further funds for more input. There is a great amount of land and there is potential to increase effectiveness. As inputs, there is currently a small labour force and high capital, but perhaps a larger labour force can maximize efficiency. The large area of land requires more workers in order ...

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