Tag: sustainable agriculture

Questions Related to sustainable agriculture

Mixed cropping ______

biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

  1. Reduces risk

  2. Gives some insurance against failure of one of the crop

  3. Both options a and b are correct

  4. None of these

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Correct Option: C

Advantages of inter-cropping

biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

  1. It makes better use of natural resources, sunlight, land and water

  2. Soil erosion is effectively arrested

  3. The produce of each crop can be marketed and consumed separately

  4. All of the above

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Correct Option: D

.......... is growing of two or more crops simultaneously on the same piece of land.

biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

  1. Crop rotation

  2. Mixed cropping

  3. Terrace farming

  4. All of the above

Show answer
Correct Option: B
Explanation:

Mixed cropping is a system of planting two crops at a time on the same land. It is also known as polyculture i.e two types of crops are sown and irrigated at a time. The benefits of mixed cropping are that the plant will get nutrients from the soils.

So, the correct option is ' Mixed cropping'.

Mixed farming referred only to ________________.

biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

  1. Growing of crop together by mixing the seeds

  2. Growing of cash crops and food grains together

  3. Crop production combined with dairy farming at farm

  4. Growing of fruits and vegetable mixed

Show answer
Correct Option: C
Explanation:

Explanation: Mixed farming is an agrarian system that mixes arable farming with the raising of livestock at the same time. When on a farm along-with crop production, some other agriculture based practice like poultry, dairy farming or bee keeping etc. is adopted, then this system of farming is known as mixed farming.

The growing two or more crops at a time in a field is called as

biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

  1. Crop rotation

  2. Inter cropping

  3. Mixed cropping

  4. None of the above

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Correct Option: C
Explanation:

When the same land is used for the cultivation of more than one crop is known as mixed cropping. The same field is divided into smaller regions. The seeds of different crops are sown and cultivation of different crops is carried out in the same piece of land. 

Thus, the correct answer is option C. 

Which of the following biofertilizer bacteria is a phosphorus solubilizer?

biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

  1. Azotobacter

  2. Azospyrillum

  3. Basillus   & Pseudomonas

  4. Cyanobacteria

Show answer
Correct Option: C
Explanation:

A.Azotobacter is a genus of usually motile, oval or spherical bacteria . It has several metabolic capabilities, including atmospheric nitrogen fixation by conversion to ammonia.
B.Azospirillum bacteria can promote plant growth. 
C.The bacteria Basillus  & Pseudomonas convert non labile Phosphorous  through either inorganic Phosphorous solubilizing or organic Phosphorous mineralization processes.
D.Cyanobacteria, also known as Cyanophyta, are a phylum of bacteria that obtain their energy through photosynthesis, and are the only photosynthetic prokaryotes able to produce oxygen.
So the correct option is ' Bacillus  & Pseudomonas ' .

The technique of growing two or more different crops together in the same field is known as 

biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

  1. mixed cropping

  2. mixed farming

  3. inter-cropping

  4. crop rotation.

Show answer
Correct Option: A
Explanation:

Mixed cropping is a technique which involves growing up of two or more different crops in the same field. The different crops to be grown together are so chosen that they do not have common pests and pathogens or similar requirement of water and animals. For example, ground nut and sunflower/gram.

________ is grown in mixed cropping.

biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

  1. Maize + Black gram

  2. Sunflower + Soyabean

  3. Sorghum + wheat

  4. All of the above

Show answer
Correct Option: A
Explanation:

Mixed cropping is a system of planting two or more crops at a time on the same land. It is also known as poly-culture i.e two types of crops are sown and irrigated at a time.  Mustard and wheat is an example of mixed cropping.

So, the correct option is ' Maize+Black gram'.

The selection of crops in mixed cropping is in such a way that they support each others growth.

biology sustainable agriculture patterns of cropping rotation of crops cropping patterns common irrigation systems

  1. True

  2. False

  3. Ambiguous

  4. Data insufficient

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Correct Option: A
Explanation:

The method of growing two or more crops simultaneously on same piece of land is called mixed cropping or inter-cropping. This method helps in improving the fertility of soil. It is very important that crops support each others growth to grow all of them on same piece of land.

Mixed farming involves combination of _____ with crop production.

biology sustainable agriculture patterns of cropping rotation of crops common irrigation systems

  1. Rearing of livestock

  2. Fishing

  3. Hunting

  4. None of the above

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Correct Option: A
Explanation:

Mixed farming is one in which crop production is combined with the rearing of livestock. The livestock enterprises are complementary to crop production; so as to provide a balance and productive system of farming. In mixed farming, at least 10% of its gross income must be contributed by livestock activity.