Seed conditioning removes undesirable material including debris and stray seeds from selected raw harvested seed, so as to create planting seed that delivers high yielding crops. This two-volume set provides a major up-date of previously published work. It describes the essential information needed to understand this process and the machinery involved. It describes the machines available to seed conditioners and explains how they can be installed, operated, adjusted, and maintained to give complete and precise separations for many years.
All the machines are described in sufficient detail, sometimes with the help of models to enable the conditioner to get good results. The book also details the operating sequence used to properly prepare seed before going into each machine.
Organized in a logical sequence, it catalogs all the entire field of seed conditioning, to help seed managers, specialists, and conditioning operators reduce loss of good seed while improving seed quality and honing the efficiency of their operations.
Table of Contents
Supplying High Quality Seed
Role and Principles of Seed Conditioning
Handling Bulk Seed
Receiving Raw Seed
Determining Conditioning Requirements and Lab Mode Cleaning
Moving Seed in Conditioning
Surge or Hopper Feed Bins
Extracting Vegetable Seed
Precleaning and Scalping
Corn (Maize) Shelle
Peanut (Groundnut) Sheller
Basic Cleaning—Air-Screen Cleaner
Width and Thickness Grading
Aspirators and Pneumatic Separators
Draper (Inclined Belt) Separator
Picking Tables or Belts
Buffel Grass Seed Cleaners
Timothy Bumper Mill
Horizontal Disk Separator
Horizontal Blower Separator
Brine and Flotation Separations
Needle Cylinder Separator
Electrostatic Seed Separator
Installing Conditioning Machines
Controls and Control Systems
Operating and Monitoring Machines
Seed Coating and Pelletizing
Forming Clean Seed Lots
Handling Cleaned Seed
Small-Scale and Portable Seed Cleaning
Designing a New Conditioning Line
Mobile Cleaning Facilities
Dr. Bill Gregg has managed seed conditioning programs, done research on development and design of machines, helped manufacturers of equipment, written operation and maintenance manuals, trained managers and operators, and helped design and install many seed plants in several countries.
Gary Gillups is President of Crippen International which has installed seed plants in all continents except Antarctica. The level of technology provided ranges from simple portable equipment to large fully-automated conditioning plants for organizations ranging from small-to-large private companies to governments and international agencies.