Improvement In Food Resources - Class 9 Biology - Extra Questions

Define poultry.



What is meant by 'irrigation'? Name the main crops grown under irrigation.



Planting Soybean and Maize in alternate rows in the same field is called as .



If there is low rainfall in a village throughout the year, what measures will you suggest to the farmers for better cropping?



Explain the different cropping patterns.



Define hybridization.  



Write a short notes on cattle farming.



"The use of manure is better than the use of fertilizers". Mention any two points in support of this statement. 



What are the method adopted for retention of water?



State the differences between manure and fertilizer.



What attributes of loam soils help make them ideal agricultural soils?



What are the different patterns of cropping?



What do you mean by animal husbandry? Mention the important aspects of this branch of science.



What are the differences between mixed cropping and intercropping?



What would happen if poultry birds are larger in size and have no summer adaptation capacity? In order to get small sized poultry birds having summer adaptability, what method will be employed?



What is irrigation ? Describe two methods of irrigation which conserve water.



What are the desirable agronomic characteristics for crop improvement?



____________ is done for two purposes, milk and draught labour for agricultural work such as tilling, irrigation and carting.



_____ ensures that the crops get water at the right stages during their growing season, which can increase the expected yields of any crop.



Water is directly drawn from the rivers for supplementing ___ in areas close to river



What is genetic manipulation? How is it useful in agricultural practices? 



Milk-producing cattle are called ______ animals.



The cattle used for farming are called ________ animals.



Why is irrigation necessary in India?



As a student of Biology how will you explain to farmers that Bee-keeping is simple and economically beneficial for them ? 



Fill in the blanks with suitable words:
By using animal dung and organic waste we can make an organic manure called_________ .



The production of food from animal sources has increased in the last few decades. Justify.



Give two examples of milch animals. 



How do we store grains?



Why are legumes desired in crop rotation ?



What are the three methods being used to get high yield of crops?



Why do we seek to build large dams.



What are manures ? State three different types of manures. 



A farmer sows peas in his field after harvesting a crop of rice. Which agricultural practice is the following?



Explain two advantages of mixed cropping.



List out some best combinations for crop rotation in practice. What is the benefits from it?



Define mixed cropping.



What are the advantages of intercropping and crop- rotation?



Why are manures and fertilizers used in fields?



Give reasons for the following.
Farmers prefer to grow beans and peas in nitrogen deficient soils.



State the differences between compost and vermicompost




The above figure shows the two crop fields (Plots A and B) have been treated by manures and chemical fertilizers respectively, keeping other environmental factors the same. Observe the graph and answer the following question.
Why is the highest peak in plot A graph slightly delayed?

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What is mixed cropping? What are the criteria for selecting crops for mixed farming ?



Inter-cropping pattern is another type of ........ 1.. ...... system in which .......... 2 ,.......... or ..........3.......... crops are grown .........4.......... on the same field but they are not ..........5.......... with each other. They are grown in a set pattern. For example, a few rows of ..........6.......... alternate with a few rows of, ..........7.......... in the total field area. Such type of ..........8.......... in which two or more ..........9.......... are grown in ..........10.......... rows is called ..........11.......... pattern. The crops selected for such type of pattern should have ..........12.......... types of ..........13.......... This will help the crops to .........14.......... maximum nutrients for the ........15.......... This pattern also prevents ..........16........ and diseases to ..........17........ in all ........18.......... of one crop in the field.



What do you understand by 'crop rotation'? Giving a suitable example, explain how this practice is beneficial to the farmers.



Describe the practice of misc cultivation and crop rotation.



What is composite fish culture? What are the advantages of composite fish culture?



What will happen if both the crops in mixed cropping are similar.



Explain crop rotation.



Class 9 Biology Extra Questions