Correct Answer:
(A) Two crops at different times
The practice of consecutively producing two crops of either like or unlike commodities on the same land within the same year is called double cropping. An example of double cropping might be to harvest a wheat crop by early summer and then plant corn or soyabeans on that acreage for harvest in the fall. This practice is only possible in regions with long growing seasons. While the cultivation of two or more crops simultaneously on the same field is called Intercropping.
Ques: 2
<p>What are the advantages of fertigation in agriculture?
Controlling the alkalinity of irrigation water is possible.
Efficient application of Rock Phosphate and all other phosphatic fertilizers is possible.
Increased availability of nutrients to plants is possible.
Reduction in the leaching of chemical nutrients is possible.
Select the correct answer using the code given below:</p>
Correct Answer:
(C) 1, 3 and 4 only
Fertigation is a method of fertilizer application in which fertilizer is dissolved into the irrigation water through the drip system. Urea, potash and highly water-soluble fertilizers are available for use through fertigation. Use of super phosphorus through fertigation must be avoided as it results in precipitation of phosphate salts. Thus, second statement is not correct and the correct answer is (c).
Ques: 3
Who has written 'The History of Indian Agriculture?
Correct Answer:
(D) M.S. Randhawa
'The History of Indian Agriculture' is written by M.S. Randhawa. His full name is Mohinder Singh Randhawa. He played a major role in the fi eld of agriculture research and Green Revolution in India.
Ques: 4
How is permaculture farming different from conventional chemical farming?
Permaculture farming discourages monocultural practices but in conventional chemical farming, monoculture practices are pre-dominant.
Conventional chemical farming can cause increase in soil salinity but the occurrence of such phenomenon is not observed in permaculture farming.
Conventional chemical farming is easily possible in semi-arid regions but permaculture farming is not so easily possible in such regions.
Practice of mulching is very important in permaculture farming but not necessarily so in conventional chemical farming.
Select the correct answer using the code given below:
Correct Answer:
(B) 1, 2 and 4
The method of agriculture which makes more use of the resources of nature without misusing or polluting it can be called sustainable agriculture. In this, agriculture is done by adopting soil water and naturally made manure and for its conservation, crop rotation, covering the soil under mulching method, etc. So, statement 1, 2, 4 is true. This method is effective even in dry semi-arid regions, so statements 3 is false.
Ques: 5
What is/are the advantage/advantages of zero tillage in agriculture?
Sowing of wheat is possible without burning the residue of previous crop.
Without the need for nursery of rice saplings, direct planting of paddy seeds in the wet soil is possible.
Carbon sequestration in the soil is possible.
Select the correct answer using the code given below:
Correct Answer:
(D) 1, 2 and 3
Zero tillage is the process where the crop seed will be sown directly through drillers without prior land preparation and thus avoiding disturbing the soil where previous crop stubbles are present. Zero tillage and direct seeded rice (DSR) not only enable sowing of wheat without any burning of crop residue, but also save water by doing away with transplanting operations in paddy. Zero tillage is environmentally safe reducing greenhouse effect by way of carbon sequestration.
Ques: 6
In the context of India, which of the following is/ are considered to be practice(s) of eco-friendly agriculture?
Crop diversification
Legume intensification
Tensiometer use
Vertical farming
Select the correct answer using the code given below:
Correct Answer:
(D) 1, 2, 3 and 4
Crop diversification: It refers to the adoption of diverse new crops to the existing cropping pattern, consistent with the ago-climatic conditions of the area besides the ground water conditions. It helps in moving away from monoculture and water-guzzling crops characterizing agriculture practices in India.
Legume (they fix the atmospheric nitrogen) intensification is an eco-friendly agricultural practice. Tensiometers (a sealed, water-filled tube with a ceramic porous cup and a vaccum gauge at the top) could be really helpful in providing estimates of soil moisture, thus helping in water conservation.
Vertical farming : Crops are grown indoors, under artificial conditions of light and temperature. It uses significantly reduced water and pesticides than in traditional agriculture.
Ques: 7
Which one of the following sectors has greater consumption share of water in India?
Correct Answer:
(A) Agricultural Sector
In India, the maximum use of water through irrigation is in the agricultural sector. It is to be noted that the total water availability obtained through rainfall in India is about 3880 billion cubic meter (bcm) per year.
Ques: 8
An example of a multipurpose tree used in social forestry is –
Correct Answer:
(D) Khejri
An example of a multipurpose tree used in social forestry is Khejri. This tree is known as ‘king of the desert’. The wood of Khejri is a good source fuel and provides excellent charcoal plus firewood, fodder, green manure and goat-proof thorny fences. Khejri is frost-resistant, drought resistance and withstands in wild temperature extremes. It requires minimum rainfall. That’s why Khejri is the preferred plant species for social forestry programme.
Ques: 9
Which of the following is not a characteristic of Indian Agriculture?
Correct Answer:
(D) Predominance of large farms
In India, there is a dominance of small and marginal holdings rather than large farms. Rest are the characteristics of Indian agriculture.
Ques: 10
The reasons for low productivity in Indian agriculture is-
Correct Answer:
(D) ll of the Above
Overcrowding in agriculture, small land holding and traditional agricultural practices all three are among the main reasons for low productivity in Indian agriculture.
Ques: 11
<p>Consider the following two statements, one labelled as the Assertion (A) and the other as Reason (R).
Assertion (A) : Green Revolution Technology played a crucial role in gradually transforming traditional agriculture into a modern scientific one.
Reason (R) : It did not involve much of social and environmental cost.
Select the correct answer from the codes given below:
Code :</p>
Correct Answer:
(B) Both (A) and (R) are true, but (R) is not the correct explanation of (A).
Ques: 12
Which of the following is not the reason for low productivity in Indian agriculture?
Correct Answer:
(C) Cooperative farming
The pressure of the population on the land, disguised unemployment and small land holding are the reasons for low productivity in Indian agriculture whereas, cooperative farming is one of the means of the development of agriculture. Cooperative farming is farming where each member farmer is the owner of his land, but farming is done jointly and profit is distributed among member farmers.