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28 changes: 28 additions & 0 deletions content/intercropping.md
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---
title: "intercropping"
alias:
- "Intercropping"
created: 2023-08-24T20:54:44+10:00
modified: 2023-08-25T15:46:05+10:00
tags:
- seed
- gardening
---

Because there is some degree of ambiguity about what a [[notes/polyculture|polyculture]] this can have a flow on effect to associated terms such as _intercropping_.

For example Gomez & Gomez 1983 defines intercropping as:
> The growing of two or more crops simultaneously on the same field such that the period of overlap is long enough to include the vegetative stage.
And while this is technically accurate you'll probably find many want to take the definition one step further in specifying that when discussed in the context of polycultures it's more about creating mutual benefits between crops.

## Intercropping

A technique where two or more crops are grown in a space where they overlap with each other – for example growing maize, beans and squash together, a combination often referred to as "the three sisters".
- The maize provides a structure for the beans to grown on;
- The beans provide nitrogen for all of the plants; and,
- The squash suppresses weeds on the ground.

Legumes are often intercropped because they fix atmospheric nitrogen into the soil a process known as nitrogen fixation.

[[intercropping-examples|Intercropping Examples]]
218 changes: 215 additions & 3 deletions content/notes/intercropping-examples.md
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---
title: Intercropping Examples
aliases: []
aliases:
- Intercropping Examples
created: 2023-08-06T20:52:57+10:00
modified: 2023-08-11T08:33:27+10:00
modified: 2023-08-25T16:05:37+10:00
tags:
- seed
- gardening
---

The following table was compiled on companion planting which could be seen as similar to intercropping:
The following examples were collated from online searches of intercropping online, and many were rightly or wrongly compiled on the foundation of companion planting.

Ultimately the biggest issue I see with a lot of these examples is they put more focus on human needs rather than system needs.

Like sure Yarrow *does* promote insectary but the planting of Yarrow is **primarily** for the purpose of protecting the Brassica.

For more information see [[../intercropping|Intercropping]].

|**Crop**|**Intercrop With**|
|---|---|
Expand All @@ -30,3 +37,208 @@ The following table was compiled on companion planting which could be seen as si
|Squash|Nasturtium, Corn, Marigold|
|Tomato|Onion Family, Nasturtium, Marigold, Asparagus, Carrots, Parsley, Cucumber|
|Turnip|Aromatic Herbs, Celery, Beets, Onion Family, Chamomile, Spinach, Chard|

## More Intercropping Examples

### Combo 1

Tomatoes
Okra
Peppers
Sunflowers
Borage

### Combo 2

Tomatoes
Cauliflower
Marigolds
Spinach/orach/lamb’s quarters
Onion
Yarrow β†’ attracts Lacewing

### Combo 3

Tomatoes
Beets
Radish
Brussel sprouts
Marigolds

### Combo 4

Okra
Eggplant
Peppers
Sunflowers

### Combo 5

Melons
Corn
Eggplants or okra
Sunflowers

### Combo 6

Peppers
Eggplant
Carrots
Onion
Basil

### Combo 7

> [!warning]
>
> This combination raises eyebrows because Kale + Marigolds sounds like a snail/slug disaster waiting to happen.
Kale
Celery
Onion
Scallions
Nasturtiums
Marigolds


### Combo 8

Squash/pumpkins
Radish
Lettuce
Borage
Nasturtium

### Combo 9

Cucumber
Corn
Radish
Sunflowers
Yarrow β†’ attracts Lacewing

### Combo 10

Bush Beans
Beets
~~Marigolds~~
Yarrow β†’ attracts Lacewing β†’ Lacewings control caterpillars & moths
Cabbage
Carrots
Rosemary

### Combo 11

Bush Beans
Cauliflower
Marigold
Radish
Peas

### Combo 12

Tomatillos
Marigolds
Nasturtiums
Brussels
Carrots
Basil

### Combo 13

Cucumber
Lettuce
Carrots
Radish
Peas

### Combo 14

Peas
Corn
Cucumber
Turnips

### Combo 15

Cauliflower
Celery
Spinach
Tomatoes

### Combo 16

Pole Beans
Corn
Carrots
Radish
Chamomile

### Combo 17

Cucumber
Corn
Pole Beans
Summer Savory
Radish

### Combo 18

Squash/pumpkin
Onion
Garlic
Peas
Nasturtium

### Combo 19

Cabbage
Cucumber
Lettuce
Dill

### Combo 20

Strawberry
Borage
Bush Beans
Lettuce
Spinach

### Combo 21

Squash
Borage
Beans
Corn

### Combo 22

Amaranth
Sweet Peppers
Okra
Basil
Parsley

### Combo 23

Squash/pumpkin
Carrots
Beans
Nasturtium
Radish

### Combo 24

Cucumber
Cabbage
Peas
Marigolds
Rosemary

### Combo 25

Potatoes
Pole Beans
Marigold
Basil
9 changes: 1 addition & 8 deletions content/notes/polyculture-practices.md
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Expand Up @@ -13,14 +13,7 @@ While there are no hard or fast rules to using a [[notes/polyculture|Polyculture

### Intercropping

A technique where two or more crops are grown in a space where they overlap with each other – for example growing maize, beans and squash together, a combination often referred to as "the three sisters".
- The maize provides a structure for the beans to grown on;
- The beans provide nitrogen for all of the plants; and,
- The squash suppresses weeds on the ground.

Legumes are often intercropped because they fix atmospheric nitrogen into the soil a process known as nitrogen fixation.

[[intercropping-examples|Intercropping Examples]]
See also [[../intercropping]]

### Cover Cropping

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50 changes: 41 additions & 9 deletions content/notes/polyculture.md
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---
title: polyculture
aliases: []
alias:
- Polyculture
created: 2023-08-06T19:49:02+10:00
modified: 2023-08-12T17:16:07+10:00
modified: 2023-08-25T16:02:21+10:00
tags:
- seed
- gardening
---

A polyculture is the practice of growing more than one crop or species in the same space at the same time.

The aim of a polyculture is to mimic the diversity of a natural ecosystem, in some cases this can provide pest, weed and disease control.
A paper written by Larry Geno and Dr Barbara Geno "*[Polyculture Production Principles, Benefits and Risks of Multiple Cropping Land Management Systems for Australia](https://agrifutures.com.au/wp-content/uploads/publications/01-034.pdf)*" notes that:

> the polyculture practices evolved to fit an almost infinite number of geographical and climatic niches and a wide range of human needs.
So while many resources will often talk about the aim of a polyculture being "to mimic the diversity of a natural ecosystem" that's not the whole picture because there are various forms of polycultures that don't mimic the diversity of a natural ecosystem and instead resemble complicated companion planting schemes.

> [!note]
>
> According to a presentation given at Cornell University Cooperative Extension and Department of Horticulture "much of popular literature that discusses companion planting is based upon some very bad science". [[source](http://www.hort.cornell.edu/brewer/polycultures/Polyculture%20Design%20slides.pdf)]
The definition that has most resinated with me though is from these [Polyculture Design slides](http://www.hort.cornell.edu/brewer/polycultures/Polyculture%20Design%20slides.pdf):

> A community of multifunctional plants, animals, and fungi that is designed for functional interconnection.
Polycultures can reduce crop yields because all the different species are competing for light, water and nutrients.
The reason being is that multifunctional can be described in many ways, some examples from the slide deck include:
- **Humans Needs**
- Food
- Fuel
- Fodder
- Medicine
- Aesthetics
- **Ecosystem Services**
- Nitrogen Fixation
- Nutrient Accumulations/Fertility
- Living Mulch/Ground Cover
- Insectary
- Nectary/Pollen

When growing multiple cultivars a polyculture can complicate care if they have different growth rates, days to maturity and harvest requirements.
One of the things that is interesting to note, is that by "typical" definitions people often reference the fact that polycultures can reduce crop yields because all the different species are competing for light, water and nutrients.

The most notable example of a polyculture is the intercropping of maize, beans and squash often referred to as "the three sisters".
But I'd argue that in a well planned polyculture this isn't actually the case, or it's less often the case β€” and when it is the case, I wonder if our valuation of polycultures output is tainted by excess accumulation, i.e., I didn't get what *I* thought *I* deserved out of this system.

Another point often discussed that I question is wether growing multiple cultivars in a well planned polyculture does in fact complicate care β€” given the example:

Yarrow β†’ attracts β†’ Lacewing β†’ protects β†’ Brassicas

Is the care complicated or simplified?

A notable example of a polyculture and perhaps the best demonstration of "true" [[../intercropping|intercropping]] is "the three sisters", which sees maize, beans and squash planted together:
- The maize provides a structure for the beans to grown on;
- The beans provide nitrogen for all of the plants; and,
- The squash suppresses weeds on the ground.

Another example of a polyculture is found in integrated aquaculture where seafood and plants are grown together.

While using a polyculture model requires less human intervention, the development of pesticides, herbicides and fertilisers, monocultures became the primary agriculture model.
I've found better examples of "good" polycultures when discussing integrated aquaculture where seafood and plants are grown together.

>[!success]
>
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