Which of the following statements can help in water conservation in agriculture?1. Reduced or zero tillage of the land2. Applying gypsum before irrigating the field3. Allowing crop residue to remain in the fieldSelect the correct answer using the code given below:
✓ Correct answer: c) 1 and 3 only
ExplanationEfficient water use in agriculture refers to practices and techniques that aim to maximize the productivity of crops while minimizing water consumption.It involves employing methods such as capturing and storing water and drip irrigation to deliver water directly to the plant roots, reducing losses due to evapora- tion or runoff.Statements 1 and 3 are correct: Conservation Tillage includes no-till farming or zero tillage which is a way of growing crops or pasture from year to year without disturbing the soil through tillage.Zero tillage helps in soil moisture conservation.Crop res- idues act as mulches and reduce evaporation losses and protect the soil from direct impact of raindrops, thus controlling crusting and sealing processes.Statement 2 is incorrect: Though, Gypsum helps in dissolution of the salt clay pan found in soils that hinder the percolation of water and helps in water conservation.58
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