Which are considered to be of practices of eco-friendly agriculture
In the context of India, which of the following is/are considered to be of practice(s) of eco-friendly agriculture?
- Crop diversification
- Legume intensification
- Tensiometer use
- Vertical farming
Select the correct answer using the code given below:
- 1, 2 and 3 only
- 3 only
- 4 only
- 1, 2, 3 and 4
Answer: D
Explanation
Crop diversification refers to the addition of new crops or cropping systems to agricultural production on a particular farm taking into account the different returns from value added crops with complementary marketing opportunities. Introducing a greater range of varieties in a particular agro-ecosystem leads to diversification of agricultural production which can also increase natural biodiversity, strengthening the ability of the agro-ecosystem to respond to these stresses. So, (1) is correct.
The discourse on Legume intensification is currently framed as 'Sustainable Intensification' (SI), and commonly encompasses three dimensions: (i) increased productivity; (ii) maintenance of ecosystem services; and (iii) increased resilience to shocks. So (2) is correct.
When the water pressure in the tensiometer is determined to be in equilibrium with the water pressure in the soil, the tensiometer gauge reading represents the matric potential of the soil. Such tensiometers are used in irrigation scheduling to help farmers and other irrigation managers to determine when to water. Its also considered as eco-friendly agriculture as it help control the excessive use of water distorting the quality of the soil. So (3) is correct.
Vertical farming is the practice of growing crops in vertically stacked layers. It often incorporates controlled-environment agriculture, which aims to optimize plant growth, and soilless farming techniques such as hydroponics, aquaponics, and aeroponics. So (4) is correct.
- Exam Year: 2020