Spinach likes a great deal of nitrogen, like silverbeet, and other green
leaf crops. I have never heard of it being used as a green manure crop.
As green manure crops are generally used to add nitrogen to the soil, though
they may also be for other purposes, I wouldn't personally use spinach as a
What is the soil like you intend to plant the spinach in ?
If you found the last crop you had on that bed was overly leafy with small
fruit, maybe a spinach crop is what it needs. If you were adding compost to
the bed, I would not recommend to use spinach as a green manure crop.
Spinach will not add a lot of nitrogen to your soil. You might be better
off growing Phacelia or trefoil or some other clover-type thing to add
nitrogen as a green manure if you want a plot of land to lie fallow for a
season. Phacelia looks nice, too.
As long as it will not take much effort to grow the spinach, and it do
grow well and fast for you, you can use it as a catch crop to
scavenging nutrient, as well as cover crop to reduce erosion.
But since spinach will decompose very fast once till in soil, and lost
with rain water, as for green manure, you should mixed spinach with
other high carbon plant(eg. ryegrass) for holding the nitrogen release
Latitude: 06.10N Longitude: 102.17E Altitude: 5m
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