The chart below shows a list of crops and different agricultural practices.
Farmers follow a sequence of agricultural practices to grow crops. A part of the sequence is shown below. Choose an appropriate agricultural practice from the chart above to fill in the box.
Important Questions on Crop Production and Management
Soham investigates the water holding capacity of four different types of soils. He sets up an experiment for each type of soil as shown in the diagram. Soham records his observation in a table.
| Soil type | ||||
| Clay | Loam | Sand | Silt | |
| Amount of water added to the soil (ml) |
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| Amount of water collected in the measuring cylinder (ml) |
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Which type of soil absorbs the most water?
Soham investigates the water holding capacity of four different types of soils. He sets up an experiment for each type of soil as shown in the diagram. Soham records his observation in a table.
| Soil type | ||||
| Clay | Loam | Sand | Silt | |
| Amount of water added to the soil (ml) |
||||
| Amount of water collected in the measuring cylinder (ml) |
||||
Soham added the same amount of water to each type of soil. State one more thing that Soham needs to keep the same in his experiment.
Nisha performs an experiment with two potted plants. She keeps the pots in sunlight and waters them equally. She adds manure to the soil in Pot 1.
She creates a table to record her observations.
| Manure added | Height of the plant at the start of the experiment | Height of the plant after 4 weeks |
|
| Plant 1 | Yes | ||
| Plant 2 | No |
What is Nisha investigating?
Nila performs an experiment with two potted plants. She keeps the pots in sunlight and waters them equally. She adds manure to the soil in Pot 1. After a few days, she can see changes in the Pot 1 plant.
What is Nila investigating?
An experiment was conducted to study the effect of a new fertilizer on the growth of two varieties of wheat. The data for growth of the plants from germination to next 10 days is shown in the figure. All other growing conditions such as water and sunlight were kept the same for both the varieties. Which of the following is the most reasonable conclusion you can draw from the data?
Read the statements given below.
(i) Seeds require moisture for germination.
(ii) Plants can absorb nutrients mostly in dissolved form.
(iii) Irrigation protects crops from both frost and hot air currents.
(iv) Irrigation improves soil texture.
Choose the combination of statements that indicate the need to irrigate crops.
