Adding Manure and Fertilisers
Important Questions on Adding Manure and Fertilisers
Cells of root nodules of leguminous plants fix nitrogen.
Crop rotation helps in replenishment of soil with _____.
Which of the following is not true for fertilizers?
Which of the following statement is not true for organic manure?
Which instrument is used for harvesting?
Write the name of a man-made chemical substance that is rich in inorganic nutrients such as NPK and used to make the soil fertile. (other than manure)
Threshing is an important agricultural practice. Explain what is it and how is it done.
Different crops are grown in different crop seasons. Explain this statement with examples.
The use of fertilisers should be limited. Why?
A gardener uses manure for better production, what is manure? Describe the common types of manures. Give the advantages of using them.
A farmer was growing only paddy in a particular field for five successive generations. He found that the yield decreases every time. Give reasons and how can this problem be solved?
Write two advantages of nitrogen fixation.
If excess fertilizer is added to the soil, what can happen?
Does nitrogen fixation help in nutrient enrichment?
Give the role of manure and fertiliser in the soil.
The plants grow fastest if we add fertilisers in the soil, but if we add manure, plants grow but at a slower rate. Give reason.
