3 ms·Or any kind of product other than plants producing edible oil. Maybe lentils and soy and wheat.by redisman 6y agoOr any kind of product other than plants producing edible oil. Maybe lentils and soy and wheat.ZephyrP 6y agoI'd imagine the honor of "most efficient yield" would belong to root vegetables like sugar beets, yams or potatoestt433 6y agoI believe it does, particularly if you use techniques like potato boxes (I haven't tried these yet so not sure how effective they are.)