Podcast
Questions and Answers
What is the main focus of the post-harvest system?
What is the main focus of the post-harvest system?
Why is extended pre-harvest field drying a double-edged sword?
Why is extended pre-harvest field drying a double-edged sword?
What do technical activities in the post-harvest system include?
What do technical activities in the post-harvest system include?
What does the term 'Chain' or 'Pipeline' highlight in the post-harvest system?
What does the term 'Chain' or 'Pipeline' highlight in the post-harvest system?
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Why is harvesting before maturity considered risky?
Why is harvesting before maturity considered risky?
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What post-harvest issue can arise if grain is not dry enough?
What post-harvest issue can arise if grain is not dry enough?
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Why is excessive hulling or threshing problematic for grains like rice?
Why is excessive hulling or threshing problematic for grains like rice?
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What is a crucial factor in the long-term storage of grains in closed structures like granaries?
What is a crucial factor in the long-term storage of grains in closed structures like granaries?
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What problem can occur if grain is threshed when too damp and stored improperly?
What problem can occur if grain is threshed when too damp and stored improperly?
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Why is marketing considered a crucial element in the post-harvest system?
Why is marketing considered a crucial element in the post-harvest system?
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Study Notes
Post-Harvest System
- The post-harvest system involves delivering a crop from harvest to consumption with minimal loss, maximum efficiency, and maximum return.
Technical Activities
- The post-harvest system encompasses a sequence of technical activities, including:
- Harvesting
- Field drying
- Threshing
- Cleaning
- Additional drying
- Storage
- Processing
Economic Activities
- The post-harvest system also involves economic activities, including:
- Transporting
- Marketing
- Quality control
- Nutrition
- Extension
- Information and communication
- Administration
- Management
Harvesting
- The time of harvesting is determined by the degree of maturity.
- Pre-harvest drying can reduce loss due to molds and decay, but increases the risk of attack by birds, rodents, and insects.
Post-Harvest Drying
- Post-harvest drying is critical to prevent mold and decay.
- Inadequate drying makes grain vulnerable to mold and rot during storage.
Threshing
- Threshing grain when it's too damp can make it susceptible to micro-organisms, limiting its preservation.
Storage
- Storage facilities, hygiene, and monitoring must be adequate for effective, long-term storage.
- Control of cleanliness, temperature, and humidity is crucial in closed structures (granaries, warehouses, hermetic bins).
- Damage caused by pests and molds can lead to deterioration of facilities and result in losses in quality and food value.
Processing
- Excessive hulling or threshing can result in grain losses, particularly in rice (hulling), which can suffer cracks and lesions.
- Poor processing makes grain vulnerable to insects, such as the rice moth.
Marketing
- Marketing is a critical element in the post-harvest system, occurring at various points in the agro-food chain.
- Marketing is closely linked to transport, an essential link in the system.
- Losses in the post-harvest system can affect food quality and quantity.
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Description
Explore the concept of post-harvest systems in agriculture, focusing on the delivery of crops from harvest to consumption with minimum loss and maximum efficiency. Learn about the interconnected functions and operations within this sphere of activity.
