שטח נוחות עכביש אינטרנט משפך roller crimper שיא קיזוז בוכנה
Roller Crimper Blueprints - Rodale Institute
FARM SHOW Magazine - The BEST stories about Made-It-Myself Shop Inventions, Farming and Gardening Tips, Time-saving Tricks & the Best Farm Shop Hacks, DIY Farm Projects, Tips on Boosting your farm income,
Charles Merfield - Crimper rollers: One route to organic no-till farming