Crop Production and Management: Comprehensive Q&A Guide
Welcome to our detailed guide on Crop Production and Management, designed to help students and enthusiasts understand key agricultural practices. Below, we’ve compiled a list of questions covering various aspects of crop production, animal husbandry, and related concepts, along with clear and concise explanations. Let’s dive in!
Very Short Answer Type Questions
1. Which agricultural practice is carried out with the help of a sickle?
A sickle is a curved, handheld tool used for harvesting. It is primarily employed to cut down mature crops like wheat or rice from the fields.
2. What name is given to the cutting and gathering of a food crop like wheat or paddy?
This process is called harvesting. It involves cutting mature crops and collecting them for further processing or storage.
3. Name the tool (or implement) used in the traditional harvesting of crops.
The traditional tool used for harvesting is a sickle. Its curved blade allows farmers to efficiently cut crops close to the ground.
4. Name the process of beating out the grains from harvested crop.
This process is known as threshing. It separates the edible grains from the stalks or husks of the harvested crop.
5. Name the machine used in recovering the grain from already cut crop.
A thresher is the machine used to separate grains from the stalks of a cut crop, making the process faster and more efficient than manual methods.
6. Name the machine which does the cutting of standing crops and recovers the grain too.
The combine harvester is a machine that both cuts standing crops and separates the grains, combining harvesting and threshing in one operation.
7. Name the process in which grains are separated from chaff and hay with the help of wind.
This process is called winnowing. It involves tossing the grain mixture into the air, allowing the wind to blow away the lighter chaff while the heavier grains fall back down.
8. Name three food materials obtained from animals.
Three food materials obtained from animals are milk, eggs, and meat.
9. Name two domestic animals which are used to obtain milk.
Cows and goats are two domestic animals commonly used to obtain milk.
10. Name one meat-yielding animal and one egg-yielding animal.
A chicken is a meat-yielding animal, and a hen (also a chicken) is an egg-yielding animal.
11. Name an animal food obtained from insects.
Honey is a food obtained from insects, specifically bees, which produce it from nectar.
12. What name is given to that branch of agriculture which deals with feeding, shelter, health, and breeding of domestic animals?
This branch is called animal husbandry. It focuses on the care and management of domestic animals for food and other products.
13. Name one major food nutrient provided by fish.
Fish is a rich source of protein, an essential nutrient for growth and repair in the human body.
14. Name the vitamin/vitamins present in cod liver oil.
Cod liver oil contains Vitamins A and D, which support vision, immune function, and bone health.
15. Name one Government agency which is involved in procuring food grains (like wheat and rice) from farmers and storing them properly.
The Food Corporation of India (FCI) is responsible for purchasing food grains from farmers, storing them, and ensuring their distribution.
16. What type of organisms grow on stored food grains having higher moisture content?
Fungi (such as molds) grow on stored food grains with high moisture content, leading to spoilage.
17. Which crop is generally grown between two cereal crops in crop rotation to restore the fertility of soil?
A leguminous crop (e.g., peas or beans) is grown between cereal crops to restore soil fertility by fixing nitrogen.
18. State one advantage of growing a leguminous crop between two cereal crops.
Leguminous crops enrich the soil with nitrogen, improving fertility for subsequent cereal crops.
19. Name the nitrogen-fixing bacteria present in root nodules of leguminous plants.
Rhizobium bacteria, found in the root nodules of leguminous plants, fix atmospheric nitrogen into compounds usable by plants.
20. Which agricultural practice comes first - harvesting or weeding?
Weeding comes first, as it is done during the growing phase to remove unwanted plants, while harvesting occurs when the crop is mature.
21. Which is the first step in the cultivation of a crop?
The first step in crop cultivation is soil preparation, which involves ploughing and leveling the field to create a suitable seedbed.
22. For what purpose is a hoe used?
A hoe is used for weeding and loosening soil around plants to improve aeration and water penetration.
23. Name the implement used in sowing.
A seed drill is commonly used for sowing seeds, ensuring they are planted at the correct depth and spacing.
24. Name the practice used for cultivating paddy.
Paddy is cultivated using the practice of transplantation, where seedlings are grown in a nursery and then transferred to the main field.
25. Name the two types of substances which are added to the fields by the farmers to maintain the fertility of soil.
Farmers add manure and fertilizers to maintain soil fertility by providing essential nutrients.
26. Some grass is growing in a wheat field. What will it be known as?
The grass growing in a wheat field is known as a weed, as it is an unwanted plant that competes with the crop for resources.
27. Name one crop which can tolerate standing water (waterlogging) in the field and one which cannot.
Paddy (rice) can tolerate standing water, while wheat cannot and requires well-drained soil.
28. Which is the best time for the removal of weeds?
The best time for weed removal is before they flower and set seeds, typically during the early growth stages of the crop, to prevent their spread.
29. Name two methods of irrigation that conserve water.
Two water-conserving irrigation methods are the drip system and the sprinkler system.
30. Fill in the following blanks:
- The same kind of plants grown and cultivated on a large scale at place is called a crop.
- The first step before growing crops is preparation of soil.
- For growing a crop, sufficient sunlight and nutrients from the soil are essential.
- Damaged seeds would float on top of water.
- Crop rotation helps in the replenishment of soil with nitrogen.
- The supply of water to crops at different intervals is called irrigation.
- The unwanted plants present in a crop field are called weeds.
- Dried neem leaves are used for storing food grains at home.
- Many people living in the coastal areas consume fish as a major part of their diet.
Short Answer Type Questions
31. (a) Why is it necessary to dry the harvested food grains before storage? (b) What are the two ways in which farmers store food grains?
(a) Drying harvested food grains is essential to reduce moisture content, which prevents the growth of fungi and bacteria that can cause spoilage.
(b) Farmers store food grains in gunny bags for small-scale storage and in silos for large-scale, long-term storage to protect against pests and environmental damage.
32. Out of drip system and sprinkler system of irrigation, which one is more suitable: (a) for uneven land? (b) for sandy soil? (c) for watering fruit plants? (d) where availability of water is poor?
(a) Uneven land: The sprinkler system is more suitable, as it distributes water evenly over irregular terrain.
(b) Sandy soil: The sprinkler system is better, as it provides uniform water distribution to compensate for sandy soil’s poor water retention.
(c) Watering fruit plants: The drip system is ideal, as it delivers water directly to the plant roots, minimizing wastage.
(d) Poor water availability: The drip system is more efficient, as it uses water sparingly by targeting the root zone.
33. (a) What are weeds? Name any one weed found in a crop field. (b) How do weeds affect the growth of crops?
(a) Weeds are unwanted plants that grow alongside crops, competing for resources. An example is wild oat.
(b) Weeds reduce crop growth by competing for sunlight, water, nutrients, and space, leading to lower yields and poorer crop quality.
34. Explain how the irrigation requirements depend on the nature of the crop.
Irrigation needs vary by crop type. For example, paddy requires frequent irrigation due to its need for standing water, while crops like wheat need less water and well-drained soil. The crop’s growth stage and water tolerance also influence irrigation frequency.
35. Explain how the irrigation requirements of a crop depend on the nature of soil in which the crop is grown.
Soil type affects irrigation needs. Clay soils retain water longer, requiring less frequent irrigation, while sandy soils drain quickly, needing more frequent watering to maintain moisture levels for crop growth.
36. Describe the sprinkler system of irrigation. State its advantages.
The sprinkler system involves a network of pipes with rotating nozzles that spray water over fields, mimicking rainfall. Advantages: It ensures uniform water distribution, is suitable for uneven land, and conserves water compared to flood irrigation.
37. Explain the drip system of irrigation. State two advantages of the drip system of irrigation.
The drip system delivers water directly to the plant roots through a network of pipes with small holes. Advantages: 1) It minimizes water wastage by targeting the root zone. 2) It reduces weed growth by limiting water to crop plants only.
38. How do the irrigation requirements of a wheat crop differ from that of a paddy crop?
Paddy requires frequent irrigation and standing water to thrive, especially during its early growth stages. Wheat, however, needs less water and prefers well-drained soil, with irrigation mainly during sowing and grain formation stages.
39. Explain why the frequency of irrigation of crops is higher in summer season.
In summer, higher temperatures increase evaporation and transpiration rates, causing crops to lose water faster. This necessitates more frequent irrigation to maintain adequate soil moisture for healthy growth.
40. How are weeds removed from the crop fields? Name one implement used for weeding.
Weeds are removed manually by pulling them out, using tools like a hoe, or by spraying chemical weedicides. A hoe is a common implement for weeding, used to dig out weeds and loosen soil.
41. If wheat is sown in the kharif season, what would happen? Discuss.
Wheat is a rabi crop suited for cooler winters. Sowing it in the kharif (rainy) season would lead to poor growth due to excessive water and high humidity, which can cause diseases and waterlogging, unsuitable for wheat’s needs.
42. Which of the following are kharif crops and which are rabi crops? Wheat, Paddy, Gram, Maize, Mustard, Cotton, Soyabean, Linseed, Peas, Groundnut
Kharif crops (sown in rainy season): Paddy, Maize, Cotton, Soyabean, Groundnut.
Rabi crops (sown in winter season): Wheat, Gram, Mustard, Linseed, Peas.
43. What is a crop? Give two examples of crops.
A crop is a group of similar plants cultivated on a large scale for food or other products. Examples: rice and wheat.
44. What are the two types of crops based on seasons? Give one example of each type.
The two types are kharif crops (e.g., paddy) and rabi crops (e.g., wheat).
45. Name the various agricultural practices in the right sequence in which they are undertaken by the farmers.
The sequence is: 1) Soil preparation, 2) Sowing, 3) Adding manure/fertilizers, 4) Irrigation, 5) Weeding, 6) Harvesting, 7) Storage.
46. Describe briefly how soil is prepared for sowing the seeds.
Soil preparation involves ploughing to loosen the soil, leveling to create a smooth surface, and manuring to add nutrients, ensuring an optimal environment for seed germination.
47. Why do farmers carry out leveling of the ploughed fields?
Leveling ensures a uniform soil surface, which promotes even water distribution, prevents waterlogging, and facilitates uniform seed sowing and crop growth.
48. What are the advantages of sowing seeds with a seed drill?
A seed drill ensures seeds are sown at the correct depth and spacing, covers them with soil to protect from birds, and saves time compared to manual sowing.
49. Explain why seeds should be sown at right spacings.
Proper spacing prevents overcrowding, ensuring plants receive adequate sunlight, water, and nutrients. It also avoids wastage of field space if seeds are sown too far apart.
50. What is ploughing (or tilling)? Name any two implements used for tilling the fields.
Ploughing (tilling) is the process of loosening and turning soil to prepare it for sowing. Two implements: plough and cultivator.
51. State two beneficial effects of ploughing the fields (or loosening and turning the soil).
1) Ploughing allows roots to penetrate deeper into the soil for better nutrient absorption. 2) It improves soil aeration, aiding root respiration.
52. (a) State the function of Food Corporation of India. (b) What is done to protect the grains stored in gunny bags in big godowns from damage?
(a) The Food Corporation of India procures grains from farmers, stores them safely, and distributes them to ensure food security across the country.
(b) Grains in gunny bags are protected by spraying pesticides to prevent pest damage and storing them in dry, well-ventilated godowns.
53. Define manure. What are the advantages of manure?
Manure is an organic substance made from decomposed animal and plant waste. Advantages: It enriches soil with nutrients, improves soil structure, and enhances water retention.
54. What is a fertilizer? Name any two fertilizers. State two harmful effects caused by the excessive use of fertilizers.
A fertilizer is a chemical or natural substance added to soil to provide plant nutrients. Examples: urea and ammonium sulfate. Harmful effects: 1) Excessive use can degrade soil fertility by altering its chemical composition. 2) It can cause water pollution by leaching into water bodies.
55. Explain how soil gets affected by the repeated growing of crops in the same fields. How does the use of fertilizers help the farmers?
Repeated crop cultivation depletes soil nutrients, reducing fertility. Fertilizers replenish essential nutrients like nitrogen and phosphorus, helping farmers maintain soil productivity and achieve higher crop yields.
56. What is weeding? Why is weeding necessary?
Weeding is the removal of unwanted plants (weeds) from crop fields. It is necessary because weeds compete with crops for resources, reducing yield and quality.
57. What are weedicides? Name one weedicide.
Weedicides are chemicals used to kill weeds. An example is 2,4-D (2,4-Dichlorophenoxyacetic acid).
58. What precautions should be taken while spraying weedicides? Why?
Precautions include wearing protective gear (masks, gloves) and spraying on windless days to avoid inhalation or drift. This is necessary because weedicides are toxic and can harm humans, animals, or nearby crops.
59. Give any four differences between manures and fertilizers.
- Origin: Manure is organic (from animal/plant waste), while fertilizers are synthetic or chemical.
- Nutrient content: Manure has lower nutrient levels; fertilizers are nutrient-rich.
- Soil impact: Manure adds humus, improving soil structure; fertilizers do not add humus.
- Preparation: Manure is prepared in fields; fertilizers are manufactured in factories.
60. Define the terms: (i) harvesting, (ii) threshing, and (iii) winnowing.
(i) Harvesting: Cutting and gathering mature crops from the field.
(ii) Threshing: Separating grains from the stalks of harvested crops.
(iii) Winnowing: Separating grains from chaff using wind or air.
61. (a) What are the two ways in which food grains are stored on a large scale? (b) What is the advantage of storing food grains in gunny bags?
(a) Food grains are stored in gunny bags for small-scale storage and in silos for large-scale storage.
(b) Gunny bags are breathable, allowing air circulation to prevent moisture buildup, and are cost-effective for short-term storage.
62. Name two traditional methods of irrigation and two modern methods of irrigation.
Traditional methods: Moat (pulley system), Chain pump.
Modern methods: Sprinkler system, Drip system.
63. What is a 'combine' which is used in agriculture? State its functions.
A combine is a machine that performs both harvesting (cutting crops) and threshing (separating grains) in one operation, increasing efficiency and reducing labor.
64. What is 'animal husbandry'?
Animal husbandry is the branch of agriculture that involves the care, feeding, breeding, and management of domestic animals for food, milk, eggs, or other products.
65. What are the various practices necessary for raising animals for food and other purposes?
Practices include: 1) Providing proper nutrition and feed, 2) Ensuring clean and comfortable shelter, 3) Maintaining animal health through vaccinations and treatments, and 4) Managing breeding to improve stock quality.
Long Answer Type Questions
66. (a) What is meant by kharif crops? Give two examples of kharif crops. (b) What is meant by rabi crops? Give two examples of rabi crops.
(a) Kharif crops are sown during the rainy season (June–September) and harvested in autumn. Examples: paddy and maize.
(b) Rabi crops are sown in winter (October–March) and harvested in spring. Examples: wheat and gram.
67. (a) What is meant by 'sowing'? What are the various methods of sowing the seeds? (b) What precautions should be taken in sowing the seeds?
(a) Sowing is the process of placing seeds in the soil for germination and growth. Methods include broadcasting (scattering seeds by hand), drilling (using a seed drill), and transplantation (transferring seedlings).
(b) Precautions: 1) Sow seeds at the correct depth to ensure germination. 2) Maintain proper spacing to avoid competition. 3) Use healthy, disease-free seeds. 4) Avoid sowing in overly wet or dry soil.
68. What are good quality seeds? You are given a sample of wheat seeds. How will you select good, healthy seeds for sowing?
Good quality seeds are clean, healthy, and free from diseases or damage. To select good wheat seeds, place them in a bucket of water. Healthy seeds will sink due to their density, while damaged or hollow seeds will float and should be discarded.
69. (a) What is the process of 'transplantation' in agriculture? Give examples of two crops which are usually grown by this process. (b) State two advantages of the process of transplantation in growing crops.
(a) Transplantation involves growing seedlings in a nursery and then transferring them to the main field. Examples: paddy and tomatoes.
(b) Advantages: 1) It ensures better root establishment in the soil. 2) It allows selective planting of healthy seedlings, improving crop uniformity.
70. (a) What is irrigation? Why is irrigation necessary? (b) Name the various sources of irrigation in our country.
(a) Irrigation is the artificial supply of water to crops to support growth. It is necessary to maintain soil moisture, especially in areas with insufficient rainfall, to ensure healthy crop development.
(b) Sources: Rivers, canals, dams, wells, tube wells, and rainwater harvesting systems.
Multiple Choice Questions (MCQs)
71. Which of the following crops would enrich the soil with nitrogen?
a) Apple b) Pea c) Paddy d) Potato
Correct: b) Pea
Pea is a leguminous crop that fixes nitrogen in the soil through Rhizobium bacteria.
72. Which of the following is not a kharif crop?
a) Paddy b) Mustard c) Maize d) Groundnut
Correct: b) Mustard
Mustard is a rabi crop, grown in winter, while the others are kharif crops.
73. In agriculture, broadcasting is used for:
a) Ploughing the fields b) Rotating the crops c) Removing the weeds d) Sowing the seeds
Correct: d) Sowing the seeds
Broadcasting involves scattering seeds across the field by hand.
74. Fish liver oil is rich in:
A. Vitamin A B. Vitamin B C. Vitamin C D. Vitamin D
a) A and B b) B and C c) A and D d) Only D
Correct: c) A and D
Fish liver oil, such as cod liver oil, is a rich source of Vitamins A and D.
75. Which of the following is not grown by transplantation?
a) Chillies b) Tomatoes c) Peas d) Paddy
Correct: c) Peas
Peas are sown directly into the soil, while the others are often transplanted.
76. Which of the following is not a rabi crop?
a) Soyabean b) Peas c) Wheat d) Linseed
Correct: a) Soyabean
Soyabean is a kharif crop, while the others are rabi crops.
77. One of the following crops is not cultivated by sowing its seeds directly into soil. This one is:
a) Wheat b) Gram c) Paddy d) Maize
Correct: c) Paddy
Paddy is typically grown by transplantation, not direct sowing.
78. Tomatoes are cultivated by the practice called:
a) Transpiration b) Translocation c) Transportation d) Transplantation
Correct: d) Transplantation
Tomatoes are grown by transplanting seedlings from a nursery to the main field.
79. The process of loosening and turning of soil is called:
a) Threshing b) Tilling c) Harvesting d) Winnowing
Correct: b) Tilling
Tilling (or ploughing) prepares the soil for sowing by loosening and aerating it.
80. The largest producer of milk in the world is:
a) USA b) China c) Brazil d) India
Correct: d) India
India is the largest milk producer globally, thanks to its extensive dairy industry.
81. The best time to remove weeds is:
a) After harvesting b) Before sowing c) Before weeds set seeds d) After irrigation
Correct: c) Before weeds set seeds
Removing weeds before they produce seeds prevents their spread and competition with crops.
82. The machine which does both harvesting and threshing is called:
a) Thresher b) Sickle c) Combine d) Seed drill
Correct: c) Combine
A combine harvester cuts crops and separates grains in one operation.
83. Fish is a rich source of:
a) Fats b) Carbohydrates c) Minerals d) Proteins
Correct: d) Proteins
Fish is a high-protein food, essential for body growth and repair.
84. The Government Agency responsible for purchasing grains from the farmers, safe storage, and distribution is:
a) CBI b) FBI c) FCI d) FDI
Correct: c) FCI
The Food Corporation of India (FCI) handles grain procurement, storage, and distribution.
85. The process of removing unwanted plants from a crop field is called?
a) Breeding b) Weeding c) Transplanting d) Harvesting
Correct: b) Weeding
Weeding involves removing weeds to prevent competition with crops.
86. Poultry gives us:
a) Eggs b) Meat c) Meat as well as eggs d) Honey
Correct: c) Meat as well as eggs
Poultry provides both eggs (from hens) and meat (from chickens).
87. Which of the following is not a correct statement for sowing seeds?
a) Seeds should be sown at right intervals b) Seeds should be sown at right depth c) Seeds should be sown in dry soil d) Seeds should not be sown in highly wet soil
Correct: c) Seeds should be sown in dry soil
Seeds require moist soil for germination, not completely dry soil.
88. Which of the following system of irrigation is preferred for uneven land?
a) Chain pump irrigation system b) Drip irrigation system c) Sprinkler irrigation system d) River irrigation system
Correct: c) Sprinkler irrigation system
Sprinkler systems distribute water evenly, making them ideal for uneven terrain.
89. The two crops which are not grown by sowing their seeds directly into the soil in large fields are:
A. Peas B. Tomatoes C. Chillies D. Maize
a) A and B b) B and C c) A and C d) Only C
Correct: b) B and C
Tomatoes and chillies are typically grown by transplantation, not direct sowing.
90. The best technique of watering the fruit plants and trees is:
a) Chain pump system b) Sprinkler system c) Moat (pulley system) d) Drip system
Correct: d) Drip system
The drip system delivers water directly to the roots, conserving water and ensuring efficient use for fruit plants and trees.
Questions Based on High Order Thinking Skills (HOTS)
91. Arrange the following practices in the correct order as they appear in the sugarcane crop production: Sending crop to sugar factory; Irrigation; Harvesting; Sowing; Preparation of soil; Ploughing the field; Manuring.
The correct order is: 1) Ploughing the field, 2) Preparation of soil, 3) Sowing, 4) Manuring, 5) Irrigation, 6) Harvesting, 7) Sending crop to sugar factory.
92. Match items in column A with those in column B:
Column A: (i) Kharif crops, (ii) Rabi crops, (iii) Chemical fertilizers, (iv) Organic manure
Column B: (a) Food for cattle, (b) Urea and super phosphate, (c) Animal excreta, cow-dung, and plant waste, (d) Wheat, gram, pea, (e) Paddy and maize
Matches: (i) e, (ii) d, (iii) b, (iv) c
Kharif crops include paddy and maize; rabi crops include wheat, gram, and pea; chemical fertilizers are urea and super phosphate; organic manure is made from animal and plant waste.
93. Name two crops which are cultivated: (a) by sowing seeds directly into fields, (b) by transplanting.
(a) Direct sowing: Wheat, Gram.
(b) Transplanting: Paddy, Tomatoes.
94. Farmers in Northern India grow legumes as fodder in one season and wheat in the next season. (a) What is this practice known as? (b) How does this practice help in the replenishment of soil?
(a) This practice is called crop rotation.
(b) Legumes fix atmospheric nitrogen into the soil through Rhizobium bacteria in their root nodules, enriching the soil with nitrogen for the subsequent wheat crop.
95. A student lists the following agricultural practices for crop production: (List includes harvesting-related terms). Explain one of these practices.
Harvesting: This is the process of cutting and collecting mature crops from the field, either manually with tools like a sickle or mechanically using a combine harvester, to prepare them for processing or storting
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