Push-pull root air-pruning tray and container systems
US5179800A
Self-watering air-producing plant tray system
US5254140A
Plant transferring and transplanting system
US4240210A
Method and apparatus for utilizing solar energy in a water and waste management system
US4156974A
Combination plant seedling-bulk tobacco support structure
US4109395A
Greenhouse, drying, storing nursery system
US4072251A
Automatic seed singulating and dispensing apparatus
US4069593A
Solar curing and drying structure and method of utilizing solar energy associated with available solar radiation in curing and drying various materials
