The Question is from neet-botany mineral-nutrition introduction, and it was created by the author B VENKAT

Question

Which of the given options are correct for hydroponics? Select the correct pair
I. Hydroponics technique is useful in areas having infertile and dry soils
II. Hydroponics can regulate pH optimum for a particular crop
III. It increases the labour cost
IV. It increases the problem of weeding

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
	**Primary Concept**: Hydroponics
	**Related Topics**: Plant nutrition, Soilless culture, Controlled environment agriculture
	**Prerequisites**: Basic understanding of plant growth requirements and hydroponic systems.
## SOLUTION PATHWAY
**Given Information**:
	Four statements about hydroponics are provided.
	We need to select the correct pair of statements.
**Method & Steps**:
	1. **Analyze each statement:**
		I. Hydroponics is indeed useful in areas with infertile and dry soils as it provides nutrients directly to the plant roots, bypassing the need for fertile soil.
		II. Hydroponic systems allow for precise control over nutrient solutions, including pH, which can be adjusted to the optimal range for a specific crop.
		III. While initial setup costs might be higher, hydroponics generally reduces labor costs associated with traditional farming practices like tilling, weeding, and pest control.
		IV.  Hydroponics significantly reduces or eliminates weed growth as plants are grown in a controlled environment without soil.
	2. **Identify the correct pair:** Based on the analysis, statements I and II are correct.
	3. **Select the corresponding option:** The correct option is 'I and II', which is option B.
 ## OPTION ANALYSIS
[A] :x: Statement IV is incorrect. Hydroponics *decreases* the problem of weeding.
[B] ✓: Both statements I and II are correct regarding the advantages of hydroponics.
[C] :x: Statement III is incorrect. Hydroponics generally *reduces* labor costs, not increases them.
[D] :x: While statement I is correct, the question asks for a pair of correct statements. Option B provides a more complete answer.
 ## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing the impact of hydroponics on labor and weeding:  Hydroponics tends to decrease both.
		2. Not understanding the core principle of hydroponics:  It's about delivering nutrients directly to plant roots, bypassing the need for soil.
	**Quick Tips**:
		1. Remember that hydroponics offers greater control over growing conditions, including nutrient levels and pH.
		2. Associate hydroponics with soilless culture and controlled environments.

B VENKAT · Answer

I and IV

B VENKAT · Answer

The correct Option is "I and II"

B VENKAT · Answer

I and III

B VENKAT · Answer

Only I

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