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1
Q

What is maize cultivation?

A

An overview of key practices for successful maize cultivation.

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2
Q

What are the methods for weed management in maize cultivation?

A

Methods to control weeds, including pre-emergence, zero-tillage, and post-emergence techniques.

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3
Q

What are examples of pre-emergence herbicides for maize?

A

Atrazine @ 1.0-1.5 kg a.i/ha, Alachlor @ 2-2.5 kg a.i/ha, Metolachlor @ 1.5-2.0 kg a.i/ha, and Pendamethalin @ 1-1.5 kg a.i/ha.

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4
Q

What is recommended for zero-tillage weed control in maize?

A

Pre-plant application of Glyphosate @ 1.0 kg a.i/ha or Paraquat @ 0.5 kg a.i/ha is recommended.

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5
Q

What is the method for post-emergence weed control in maize under heavy weed infestation?

A

Apply Paraquat using hoods for a protected spray.

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6
Q

What is the water requirement for maize?

A

Maize requires 600-700 mm of water to complete the lifecycle of a 100-day crop.

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7
Q

How sensitive is maize to moisture?

A

Maize is sensitive to both deficit moisture and excessive moisture stress.

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8
Q

What are the critical moisture stages for maize?

A

Ensure optimum moisture availability between 45-65 days after sowing, especially during tasseling and silking.

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9
Q

What is the impact of low temperatures on delayed maize planting?

A

Low temperatures can reduce crop establishment and early growth. Transplanting helps mitigate this issue.

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10
Q

What is transplanting in intensive cropping systems?

A

An alternative for winter maize when fields are vacated in December-January. Requires 700 m² nursery area for 1 hectare.

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11
Q

When should the nursery for transplanting maize be raised?

A

Nursery should be raised in the second fortnight of November, and seedlings should be transplanted in December-January.

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12
Q

What are the methods for zero-till planting?

A

Zero-till planting using a seed-cum-fertilizer planter with a furrow opener helps conserve moisture and reduce cost.

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13
Q

What types of planters are best for zero-tillage in maize?

A

Zero-till planters with appropriate furrow openers based on soil texture are ideal.

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14
Q

What is flat planting used for in maize?

A

Flat planting with seed-cum-fertilizer planters is used where herbicide weed management in no-till is uneconomical.

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15
Q

What is furrow planting in maize?

A

Furrow planting is advised to prevent moisture loss during the spring season and ensure better growth.

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16
Q

What is the recommended planting direction for raised bed planting?

A

Planting on the southern side of east-west ridges ensures better germination and growth.

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17
Q

What are the advantages of raised bed planting in maize?

A

Raised bed planting is effective under both excess moisture and limited water availability conditions.

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18
Q

How much irrigation water can be saved with raised bed technology?

A

Raised bed technology can save 20-30% irrigation water and improve productivity.

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19
Q

What role do furrows play in raised bed planting?

A

Furrows act as drainage channels in excess water conditions to protect crops.

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20
Q

What are the benefits of permanent bed planting in maize?

A

Permanent beds ensure higher infiltration rates and save crops from temporary waterlogging.

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21
Q

What is the process for sowing in permanent beds?

A

Permanent beds allow for sowing in a single pass without preparatory tillage.

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22
Q

When should maize harvesting begin?

A

Harvest when the moisture content is around 20%. Look for black layer formation or pale brown husk color.

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23
Q

What are the methods for manual maize harvesting?

A

Cobs can be removed using a gunny needle or by hand. A combined harvester with a maize header can also be used.

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24
Q

What is the process for drying harvested maize?

A

Spread harvested cobs on a cemented or tarpaulin floor to reduce moisture content to 8%.

25
What additional drying methods can be used in humid conditions?
Artificial drying methods, such as mechanical dryers, should be used to achieve the desired moisture content.
26
What is the expected grain yield from maize?
The expected grain yield is 5 t/ha.
27
What is the expected straw yield from maize?
The expected straw yield is 10 t/ha.
28
What is the yield for baby corn from maize?
For baby corn, expect 6 t/ha of cob yield and 25 t/ha of green fodder yield.
29
Question
Answer
30
What are the key practices for successful maize cultivation?
Overview of key practices for successful maize cultivation.
31
What are the methods to control weeds in maize cultivation?
Methods to control weeds in maize cultivation.
32
What are the pre-emergence herbicides used in maize cultivation?
Application of Atrazine @ 1.0-1.5 kg a.i/ha, Alachlor @ 2-2.5 kg a.i/ha, Metolachlor @ 1.5-2.0 kg a.i/ha, or Pendamethalin @ 1-1.5 kg a.i/ha.
33
What is recommended for weed control in zero tillage maize cultivation?
In zero tillage, pre-plant application of Glyphosate @ 1.0 kg a.i/ha or Paraquat @ 0.5 kg a.i/ha is recommended. Pre-plant application is effective in reducing weed pressure without disturbing the soil.
34
What is recommended for post-emergence weed control under heavy weed infestation?
Under heavy weed infestation, Paraquat application using hoods for protected spray.
35
What are the strategies for effective water management in maize cultivation?
Strategies for effective irrigation and moisture management in maize.
36
Why is maize sensitive to moisture?
Maize is sensitive to both deficit moisture and excessive moisture stress.
37
What are the critical moisture stages in maize cultivation?
Ensure optimum moisture availability between 45-65 days after sowing, especially during tasseling and silking. Moisture deficits during this stage affect kernel formation and final yield.
38
What is the water requirement for maize cultivation?
Maize requires 600-700 mm of water to complete the lifecycle of a 100-day crop, with water needs increasing during flowering and grain filling stages.
39
What is transplanting in intensive systems of maize cultivation?
Transplanting is an alternative for winter maize when fields are vacated in December-January. 700 m² nursery area required for 1 hectare.
40
How does temperature affect delayed planting in maize cultivation?
Low temperatures during delayed planting can affect crop establishment. Use transplanting to address delayed planting to ensure proper root growth and establishment.
41
What is zero-till planting in maize cultivation?
Zero-till planting using a seed-cum-fertilizer planter with a furrow opener helps conserve moisture and reduce cost by avoiding soil disturbance.
42
What planter types are suitable for zero-till planting?
Choose a zero-till planter with an appropriate furrow opener based on soil texture for successful planting.
43
What planting method is used for heavy weed infestation?
Flat planting with seed-cum-fertilizer planters is used where herbicide weed management in no-till is uneconomical, allowing better control over soil structure.
44
What is furrow planting, and when is it advised?
Furrow planting is advised to prevent moisture loss during the spring season and ensure better growth by providing moisture conservation.
45
What are the requirements for nursery management in maize cultivation?
700 m² nursery area is required for one hectare, with seedlings ready for transplanting after 30-40 days. Maintain optimal soil and moisture conditions for healthy seedlings.
46
When should a maize nursery be raised for transplanting?
Nursery should be raised in the second fortnight of November, and seedlings should be transplanted in December-January to avoid frost damage and ensure proper root establishment.
47
When should maize be harvested?
Harvest when the moisture content is around 20%. Look for black layer formation at the base of the kernel or pale brown husk color to indicate maturity.
48
What are the methods for manual maize harvesting?
Cobs can be removed using a gunny needle or by hand. A combined harvester with a maize header can also be used for large-scale harvesting.
49
How should harvested maize be dried?
Spread harvested cobs on a cemented or tarpaulin floor to reduce moisture content to 8%. Alternatively, use sun-drying or artificial drying methods in case of high humidity conditions.
50
What is the expected grain yield of maize?
Expected grain yield is 5 t/ha under optimal conditions.
51
What is the expected straw yield of maize?
Expected straw yield is 10 t/ha, often used for fodder or as organic matter in soil management.
52
What is the expected baby corn yield of maize?
For baby corn, expect 6 t/ha of cob yield and 25 t/ha of green fodder yield, which is a high-value niche market.
53
What are the advantages of raised bed planting in maize cultivation?
Raised bed planting is effective under both excess moisture and limited water availability conditions, ensuring proper drainage and better root development.
54
What is the recommended planting direction for raised bed planting?
Planting should be done on the southern side of east-west ridges for better germination and sunlight exposure during the growing season.
55
How does raised bed planting improve water efficiency?
Raised bed technology can save 20-30% irrigation water, improve productivity by reducing water wastage, and prevent waterlogging.
56
What is the role of furrows in raised bed planting?
In case of excess water, furrows act as drainage channels to protect crops from waterlogging and promote better root growth.
57
What are the benefits of permanent bed planting in maize cultivation?
Permanent beds help higher infiltration rates, saving crops from temporary waterlogging and improving soil structure for better root penetration.
58
How does permanent bed planting enable no-till farming?
Permanent beds allow for sowing in a single pass without preparatory tillage, thus saving time, labor, and reducing soil disturbance.

Crop Production (1 decks)

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