This is my understanding too. After the plant dies it can release that nitrogen. While the legume grows, the benefit of nitrogen is negligible and negated by the fact that the legume is competing in the ground for water and other nutrients. The Three Sisters is a nice idea but there is a reason it’s not common practice. See also ‘companion planting’, the astrology of gardening. What plants want most is room to grow roots.
The best thing to do with legumes is till them under before they go to seed, or add them to compost.
Somethin to keep in mind is that it’s a labor intensive harvest and the products aren’t really what we’d want to market. You’d wait until the whole lot of them kind of dies down and harvest winter squash, dry beans, and flint corn then till the remainder back into the soil.
It’s not bad for substinence farming, but you’re not going to get the yields or reasonable market prices with those crops.
I mean, the three sisters works wonderfully as long as you’re not trying to harvest mechanically or minmax your yields. It’s a great way to produce food for a family or small village with a comparatively small amount of land and effort.
It’s common in backyard and community gardens for a reason. To my understanding: (1) corn is a fast growing, relatively high yield calorie and carbohydrate source and provides a natural trellis for (2) beans which stabilize the stalks and provide a protein and vitamin source, while (3) squash serves as a ground cover to retain moisture, limit weed growth, and produces fruit high in fiber and vitamin C.
The beans do fix nitrogen but this only plays a role in replanting for the next season, reducing or eliminating the need to fallow.
This is my understanding too. After the plant dies it can release that nitrogen. While the legume grows, the benefit of nitrogen is negligible and negated by the fact that the legume is competing in the ground for water and other nutrients. The Three Sisters is a nice idea but there is a reason it’s not common practice. See also ‘companion planting’, the astrology of gardening. What plants want most is room to grow roots.
The best thing to do with legumes is till them under before they go to seed, or add them to compost.
Somethin to keep in mind is that it’s a labor intensive harvest and the products aren’t really what we’d want to market. You’d wait until the whole lot of them kind of dies down and harvest winter squash, dry beans, and flint corn then till the remainder back into the soil.
It’s not bad for substinence farming, but you’re not going to get the yields or reasonable market prices with those crops.
I mean, the three sisters works wonderfully as long as you’re not trying to harvest mechanically or minmax your yields. It’s a great way to produce food for a family or small village with a comparatively small amount of land and effort.
It’s common in backyard and community gardens for a reason. To my understanding: (1) corn is a fast growing, relatively high yield calorie and carbohydrate source and provides a natural trellis for (2) beans which stabilize the stalks and provide a protein and vitamin source, while (3) squash serves as a ground cover to retain moisture, limit weed growth, and produces fruit high in fiber and vitamin C.
The beans do fix nitrogen but this only plays a role in replanting for the next season, reducing or eliminating the need to fallow.