Agriculture — IV: Cash Crops (2)
Solutions for Geography, Class 10, ICSE
Answer The Following Questions
24 questionsAnswer:
Cotton grows well in the well-drained clayey soils containing lime and phosphates. The deep and medium black soils are considered ideal for cotton cultivation since black soil has a high level of clay and good water holding capacity that makes it suitable for the growth of cotton.
Since cotton crops exhaust the fertility of soil rapidly, regular application of manures and fertilizers to the soil is necessary.
Answer:
(i) Two chief cotton-growing areas in India are-
- The north western Deccan on the fertile Black cotton soil
- The central and southern Deccan of Karnataka and Tamil Nadu
(ii) The climatic conditions that favour the cultivation of cotton are:
- Temperature — Cotton requires uniformly high temperatures between 21°C and 30°C. A long growing period of at least 200 frost-free days is required for the plant to mature.
- Rainfall — Rainfall should be moderate, ranging between 50 to 75 cm. Sufficient rainfall is required during the early stages of the growth, but a sunny and dry weather is required after flowering.
Answer:
(i) The cotton plant is extremely sensitive to frost and late spring or early autumn frosts can kill the plant and destroy the crop. The soil temperature below 20°C reduces root growth thus retarding plant growth.
Dry weather is necessary at the time of harvesting cotton as rainfall during boll-opening and harvesting periods is harmful for the plants as it makes them vulnerable to pests and diseases.
(ii) The net sown area of cotton is declining due to low global demand, frequent pest attacks, low yields, and poor returns. Erratic rainfall due to climate change also affects cotton growth. As a result, many farmers are shifting to other crops like pulses and maize, which are more profitable and less risky.
Answer:
The advantages of Long Staple Cotton is that the longer the cotton fiber, the stronger, softer, and more durable the resulting fabric. Long staple cotton is long, fine and shiny. It is used for making fine and superior quality cloth.
Fabrics made of long-staple cottons fray less, pill less, wrinkle less, and even fade less than fabrics made with their short-staple counterparts.
Answer:
Gujarat and Maharashtra are the leading producers of Cotton because the moist climate of both the states is well suited for cotton cultivation and the temperature is ideal for the cotton industries as the cotton threads tend to break in dry climate while they rarely break in moist and humid climate.
Answer:
The stages in Ginning of Cotton are-
- The cotton first goes through the dryers to reduce moisture content.
- Then, it goes through the cleaning equipment to remove foreign matter.
- The cotton is then air conveyed to gin stands where its circular saws pull the lint through closely spaced ribs that prevent the seed from passing through.
- The lint is removed from the saw teeth by rotating brushes and then compressed into bales.
Akola is known as the 'Cotton City of India' due to its high cotton production. Shyamlal a cotton farmer from the district does not want his son to follow his vocation. Instead he wants his son to find employment in Pune. What are the problems associated with the growing of cotton that is influencing Shyamlal?
Answer:
Shyamlal's reluctance for his son to continue in cotton farming in Akola and find employment in Pune stems from several significant challenges associated with cotton cultivation, such as:
- Declining global demand for cotton
- Lack of financial facility
- Shortage of labour
- Inadequate water supply
- Severity of diseases
- Lack of technology
- High cost of inputs
- Low quality of fertilizers and pesticides
- Poor quality of seeds
Answer:
Jute grows best on the soil enriched by new alluvium brought by river inundation. Loamy soils are most suitable for jute production as the clay particles of loam help to hold the plant nutrients preventing them from getting washed away by water.
The clayey soil gives the heaviest yield. Sandy soils produce coarse fibres.
Answer:
Ganga-Brahmaputra Delta has loamy soil which is most suitable for jute production as the clay particles of loam help to hold the plant nutrients preventing them from getting washed away by water.
Answer:
(i) Jute is retted because retting softens the outer bark and facilitates the early removal of the fibre within.
(ii) Retting was once done by submerging the jute into ponds and streams but is now done in special tanks. Chemical additives help in the retting operation.
Answer:
Jute is harvested by hand, by pulling up the stem. It is dried and striped of unwanted leaves and is put in water and allowed to rot. This process is known as retting.
Retting was once done by submerging the jute into ponds and streams but is now done in special tanks. Chemical additives help in the retting operation.
The fleshy part of the stem is eventually decomposed and the fibres are then scraped to remove any remaining pieces of soft vegetable matter. After drying, the fibres are loosely spun and woven, and are used in making sacks and bags, carpet, upholstery, etc.
Answer:
(i) Floods are beneficial for the growth of jute because plenty of water is needed for the process of retting and a new soil cover is available.
(ii) One advantage of delay in jute harvest is that it adds to the yield and one disadvantage of delay in jute harvest is that it usually produces coarse fibre.
Answer:
Three uses of jute are-
- It is used for manufacturing rough quality cloth, sacks and other packaging material.
- It is used for making many utility products like carpets, rugs, etc.
- It provides a huge revenue to the government.
Answer:
Two conditions that favour the growth of tea in the Nilgiris are-
- The slopes protect the crop from annual inundations and stagnant water during the rains.
- The high altitude provides the required climatic conditions- temperature ranging from 24°C to 30°C and annual rainfall of atleast 150 cm, well distributed throughout the year.
Answer:
Tea plantations require even distribution of water without any water logging. Hill slopes provide proper drainage and prevents water logging problems. This is the reason why tea plantations are usually grown on hill slopes.
Answer:
(i) The different varieties of tea grown in India are-
- Black tea
- Green tea
- Oolong tea
- Brick tea
(ii) Blending is necessary for tea to give it a special aroma and make many proprietary brands.
Answer:
(i) Assam is the leading producer of tea in India.
Two factors that have helped Assam to become the leading state in tea production are-
- No stagnant water due to hilly terrain
- Availability of cheap labour
(ii) The definitions of Clonal Planting & Pruning are given below:
- Clonal Planting — Tea shrubs can be grown in nurseries from cuttings of high yielding varieties. This is known as clonal planting.
- Pruning — Pruning means plucking of tea leaves. Frequent pruning encourages the rapid production of fresh leaves and shoots. Pruning of tea bush starts after two years in order to maintain the height and diameter of the plant limited to one metre.
Answer:
Two climatic factors that favour the cultivation of coffee are-
- Temperature — Coffee plant requires warm climate with temperature ranging from 15°C to 28°C and a moderate supply of moisture.
- Rainfall — During the period of growth, the plant requires 150 - 200 cm of annual rainfall.
Answer:
The three varieties of coffee plants grown on commercial scale in India are-
- Coffee Robusta
- Coffee Liberica
- Coffee Arabica
Coffee is grown extensively in Karnataka.
Give a geographical reason for each of the following:
(i) Coffee is grown on the slopes of the hills in Peninsular India.
(ii) Coffee estates have coffee inter-planted with orange trees, cardamom and pepper vines.
(iii) Tea bushes are pruned at regular intervals.
Answer:
(i) Coffee is grown on the slopes of the hills in Peninsular India to avoid water logging and to supply even water to the plants. Soils are also fertile in this area with sufficient amount of rainfall of about 150 cm on average, necessary for the growth of coffee plantations.
(ii) Coffee plant is susceptible to direct sunrays. So, Coffee estates have coffee inter-planted with orange trees, cardamom and pepper vines to provide shade to the coffee plant and at the same time generate extra income for the farmers.
(iii) Tea bushes are pruned at regular interval to maintain the height and diameter of the plant limited to one metre. Frequent pruning encourages the rapid production of fresh leaves and shoots.
Answer:
In the Dry Parchment method of processing of coffee, the following process is followed-
- The harvested cherries are sorted and cleaned to separate the unripe, overripe and damaged cherries and remove dirt, soil, twigs and leaves.
- The coffee cherries are then spread out in the sun to dry.
- The beans are then fermented by drying in the sun for a week.
- After drying, the machines peel off the two layers of inner husks.
- They are sorted according to size and quality and then packed in sacks for use.
- The beans are roasted at temperatures of about 99°C and then grounded into coffee powder which is used to make beverage. Roasting gives it brown colour and characteristic aroma and taste.
Choose The Correct Option
21 questionsAnswer:
Sunny skies help in ripening and bursting of cotton bolls.
Assertion (A): The cotton crop is harvested in three to four pickings as the bolls mature.
Reason (R): Yield of cotton decreases with successive pickings.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Answer:
Both A and R are true but R does not explain A.
Explanation — Cotton is picked in stages because bolls mature at different times. Though yields do drop with each picking, that isn't the main reason for multiple harvests. So, both statements are true, but R doesn't explain A.
Assertion (A): Cotton crops exhaust the fertility of soils rapidly.
Reason (R): Regular application of manures and fertilisers to the soils is necessary.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Answer:
Both A and R are true and R is the correct explanation of A.
Explanation — Cotton is a soil-exhausting crop because it remains in the field for a long period and draws significant nutrients from the soil. Hence, the regular use of manures and fertilizers is necessary to replenish the soil nutrients. So, the Reason (R) correctly explains the Assertion (A).
Assertion (A): Loamy soils are most suitable for jute production.
Reason (R): The clay particles of loam help to hold the plant nutrients preventing them from getting washed away by water.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Answer:
Both A and R are true and R is the correct explanation of A.
Explanation — Loamy soils are most suitable for jute production as the clay particles of loam help to hold the plant nutrients preventing them from getting washed away by water.
Thinking Skills
2 questionsAnswer:
I agree that cotton and jute are two crops that can provide employment to a large number of people and enhance the foreign exchange of India.
Both cotton and jute cultivation and related industries have the potential to generate employment opportunities, particularly in rural areas. These crops require labour-intensive activities such as sowing, harvesting, and processing, which can provide jobs to a significant number of people, especially during peak seasons.
Cotton and jute can contribute to foreign exchange earnings through their exports. Cotton is a valuable raw material for textile industries, and jute is used for manufacturing various products like sacks, bags, and carpets. The export of cotton textiles and jute goods can generate foreign currency for the country.
With proper attention to improving productivity, enhancing value addition, promoting innovation, and addressing challenges, the cotton and jute sectors can further contribute to employment generation and foreign exchange earnings, supporting the overall economic development of India.
Answer:
I believe that developing tea and coffee plantations as tourist spots to promote agri-tourism and provide an alternative source of income to farmers can be a beneficial proposal due to the following reasons:
- Tourism Potential — Tea and coffee plantations offer scenic landscapes, making them attractive to tourists.
- Diversification of Income: Agri-tourism provides an additional source of income for farmers, reducing reliance on agricultural yields alone.
- Cultural Exchange and Education — Visitors can learn about tea and coffee cultivation, processing, and local traditions, enriching their travel experience.
- Employment Opportunities — Developing plantations as tourist spots creates jobs in hospitality, tourism, and service sectors.
- Conservation and Sustainability — Agri-tourism can encourage sustainable practices in plantations, promoting environmental conservation.